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Low atomization and odorless catalyst reduces volatile organic compounds release

2月 10th, 2025 News

Introduction

As the global environmental problems become increasingly serious, the release of volatile organic compounds (VOCs) has had a significant impact on air quality, ecosystems and human health. VOCs are an organic chemical substance that is easily volatile into gas at room temperature. It is widely present in industrial production, transportation, building decoration, daily life and other fields. Common VOCs include, aceta, dimethyl, formaldehyde, etc. They not only cause environmental pollution problems such as luminochemical smoke and rain, but may also have long-term harm to human health, such as respiratory diseases, nervous system damage, and even cancer.

To address this challenge, governments and international organizations have introduced strict environmental regulations to limit VOCs emissions. For example, both the EU’s Industrial Emissions Directive (IED) and the US’s Clean Air Act (CAA) set strict standards for VOCs emissions. China has also clearly stipulated the control requirements for VOCs in the “Air Pollution Prevention and Control Law” and gradually strengthened supervision of related industries. However, traditional VOCs control technology often has problems such as low efficiency, high cost, and secondary pollution, which is difficult to meet increasingly stringent environmental protection requirements.

Under this background, low atomization and odorless catalysts emerged as a new environmentally friendly material. It converts VOCs into harmless carbon dioxide and water through catalytic reactions, and has the advantages of high efficiency, safety and no secondary pollution. This article will introduce in detail the working principle, product parameters, application scenarios and research progress at home and abroad of low atomization odorless catalysts, aiming to provide comprehensive reference for researchers and practitioners in related fields.

The working principle of low atomization odorless catalyst

The low atomization odorless catalyst is a catalyst based on precious metals or transition metal oxides. Its main function is to convert volatile organic compounds (VOCs) into harmless carbon dioxide (CO?) and water (H?O) through catalytic oxidation reactions ). Unlike traditional physical adsorption or combustion treatment methods, low atomization odorless catalysts can achieve efficient VOCs degradation at lower temperatures without secondary pollution. The following are the main working principles of this catalyst:

1. Catalyst selection and active sites

The core of the low atomization odorless catalyst is its active components, usually composed of noble metals (such as platinum, palladium, gold) or transition metal oxides (such as titanium dioxide, manganese oxide, iron oxide). These metals or metal oxides have high electron density and large specific surface area, which can effectively adsorb VOCs molecules and promote their chemical reactions. In particular, precious metal catalysts, due to their unique electronic structure, can significantly reduce the activation energy of the reaction and thus improve the catalytic efficiency.

The active site of the catalyst refers to the surface area that is capable of interacting with the reactants. The active sites of low-atomization and odorless catalysts are usually located on the surface of nano-scale particles. These particles are uniformly dispersed on the support through special preparation processes (such as sol-gel method, co-precipitation method, impregnation method, etc.) to form a highly dispersed Catalytic system. This highly dispersed structure not only increases the specific surface area of ??the catalyst, but also exposes more active sites, thereby increasing the rate and selectivity of the catalytic reaction.

2. Catalytic oxidation reaction mechanism

The mechanism of action of low atomization and odorless catalysts can be divided into the following steps:

  1. Adhesion: VOCs molecules are first adsorbed by active sites on the surface of the catalyst. Because the catalyst has a large specific surface area and strong adsorption capacity, VOCs molecules can quickly diffuse to the catalyst surface and bind to it.

  2. Activation: VOCs molecules adsorbed on the catalyst surface undergo chemical bond rupture under the action of active sites, forming intermediate products. This process is usually accompanied by the participation of oxygen molecules, which are also adsorbed to the catalyst surface and decomposed into reactive oxygen species (such as O??, O²?, OH·, etc.), which can further promote the oxidation reaction of VOCs.

  3. Reaction: The activated VOCs molecules undergo oxidation reaction with reactive oxygen species to produce carbon dioxide and water. This process is a continuous chain reaction until all VOCs molecules are completely degraded.

  4. Desorption: The carbon dioxide and water molecules generated by the reaction are desorbed from the catalyst surface and enter the gas phase to complete the entire catalytic oxidation process.

3. Low temperature catalytic characteristics

An important feature of low atomization odorless catalyst is its ability to achieve efficient VOCs degradation at lower temperatures. Traditional combustion methods usually require high temperatures (500-800°C) to effectively decompose VOCs, while low atomization odorless catalysts can achieve the same effect in the range of 150-300°C. This is because the presence of the catalyst reduces the activation energy of the reaction, allowing VOCs molecules to undergo oxidation reactions at lower temperatures. In addition, low-temperature catalysis can reduce energy consumption, reduce operating costs, and avoid harmful by-products (such as nitrogen oxides, dioxins, etc.) that may be generated under high temperature conditions.

4. No secondary pollution

One of the great advantages of low atomization odorless catalysts compared to traditional VOCs treatment methods is that they do not produce secondary contamination. For example, although physical adsorption can temporarily remove VOCs, the adsorbent itself needs to be replaced or regenerated regularly, otherwise it may lead to adsorption saturation and then release.The adsorbed VOCs are produced, causing secondary pollution. The combustion law may produce harmful by-products such as nitrogen oxides and dioxins, causing new harm to the environment. Low atomization odorless catalysts completely convert VOCs into carbon dioxide and water through catalytic oxidation, leaving no harmful residues, thus providing higher environmental protection and safety.

5. Atomization and odorless properties

“Low atomization” and “odorless” are two important features of low atomization odorless catalysts. The so-called “low atomization” means that the catalyst will not produce obvious atomization during use, that is, it will not form tiny droplets or particles suspended in the air. This not only helps to improve the service life of the catalyst, but also avoids equipment corrosion and maintenance problems caused by atomization. “Odorless” means that the catalyst will not produce any odor during the catalytic reaction, which is particularly important for some odor-sensitive application scenarios (such as indoor air purification, food processing, etc.).

Product parameters of low atomization odorless catalyst

As a highly efficient and environmentally friendly VOCs control material, its performance parameters directly affect its application effect and market competitiveness. The following is a detailed description of the main product parameters of the catalyst, including data on physical properties, chemical composition, catalytic properties, etc. For the convenience of comparison and analysis, we will list the relevant parameters in a tabular form and cite experimental data in some domestic and foreign literature as reference.

1. Physical properties

parameters Unit Typical Remarks
form – Powder, granules, honeycomb Can be customized according to application requirements
Average particle size ?m 0.5-5 Nanoscale particles can improve catalytic activity
Specific surface area m²/g 100-300 High specific surface area is conducive to increasing active sites
Pore size distribution nm 5-50 The mesoporous structure is conducive to VOCs diffusion
Density g/cm³ 0.5-1.2 Low density helps reduce equipment load
Thermal Stability °C 300-600 Keep good catalytic activity at high temperature
Water Stability – >95% Maintain efficient catalytic performance in humid environments

2. Chemical composition

Ingredients Content (%) Function Citation of literature
Platinum (Pt) 0.5-2.0 Providing highly active sites to promote VOCs oxidation reaction [1] Zhang et al., 2019
Palladium (Pd) 0.3-1.5 Enhance the low-temperature catalytic performance and reduce the reaction activation energy [2] Smith et al., 2020
TiO2 (TiO?) 10-30 Providing stable support to enhance photocatalytic performance [3] Wang et al., 2018
Manganese Oxide (MnO?) 5-15 Improve the oxygen adsorption capacity and promote the generation of reactive oxygen species [4] Lee et al., 2017
Alumina (Al?O?) 5-20 Provides good thermal stability and mechanical strength [5] Chen et al., 2016

3. Catalytic properties

Performance metrics Unit Typical Test conditions Citation of literature
VOCs conversion rate % 90-98 Temperature: 200-300°C, airspeed: 10,000 h?¹ [6] Kim et al., 2019
Reaction temperature °C 150-300 Supplementary to various VOCs, such as, A, etc. [7] Brown et al., 2021
ignition temperature °C 100-150 Low temperature starts to ignite, saving energy [8] Li et al., 2020
Catalytic Lifetime hours >5,000 Continuous operation without frequent replacement [9] Park et al., 2018
Anti-poisoning performance – >90% Have good anti-toxicity against toxic substances such as sulfides and chlorides [10] Yang et al., 2017

4. Application parameters

Application Scenario Recommended Parameters Remarks
Industrial waste gas treatment Temperature: 200-300°C, airspeed: 10,000 h?¹ Supplementary in chemical, coating, printing and other industries
Indoor air purification Temperature: Room temperature, airspeed: 3,000 h?¹ Supplementary to homes, offices, hospitals and other places
Car exhaust purification Temperature: 250-400°C, airspeed: 50,000 h?¹ Supplementary for gasoline and diesel engines
Food Processing Workshop Temperature: Room temperature, airspeed: 2,000 h?¹ Supplementary for food processing environments with high odor requirements

Application scenarios of low atomization and odorless catalyst

Low atomization and odorless catalysts have been widely used in many fields due to their high efficiency, safety and secondary pollution. The following is the catalyst in different waysUse specific performance and advantages in the scenario.

1. Industrial waste gas treatment

In the industrial production process, especially in chemical, coating, printing and other industries, VOCs emissions are relatively large, posing a serious threat to the environment and human health. Although traditional VOCs treatment methods such as activated carbon adsorption, condensation and recovery, combustion methods, etc., can reduce VOCs emissions to a certain extent, there are common problems such as low efficiency, high cost, and secondary pollution. Low atomization and odorless catalysts can completely convert VOCs into carbon dioxide and water through catalytic oxidation, which has the following advantages:

  • High-efficient degradation: In the temperature range of 200-300°C, low atomization odorless catalyst can achieve a VOCs conversion of 90%-98%, which is much higher than the treatment efficiency of traditional methods.
  • Clow-temperature operation: Compared with combustion methods, low atomization odorless catalysts can achieve efficient VOCs degradation at lower temperatures, reducing energy consumption and operating costs.
  • No secondary pollution: During catalytic oxidation, no harmful by-products such as nitrogen oxides and dioxins will be produced, and it meets strict environmental protection requirements.
  • Long Life: The catalyst has excellent thermal stability and anti-toxic properties, and can operate continuously in an industrial environment for more than 5,000 hours, reducing replacement frequency and maintenance costs.

2. Indoor air purification

As people’s living standards improve, indoor air quality has attracted more and more attention. Interior decoration materials, furniture, detergents and other items often contain a large amount of VOCs, such as formaldehyde, A, etc. These substances will not only affect living comfort, but may also cause potential harm to human health. Low atomization and odorless catalysts have the following advantages in the field of indoor air purification:

  • odorless design: Low atomization odorless catalyst will not produce any odor during the catalytic reaction. It is especially suitable for odor-sensitive places, such as homes, offices, hospitals, etc.
  • Cloud temperature suitable: This catalyst can effectively degrade VOCs at room temperature without the need for additional heating devices, reducing energy consumption and equipment complexity.
  • Rapid Response: Low atomization odorless catalyst has a high reaction rate, which can significantly reduce indoor VOCs concentration in a short period of time and improve air quality.
  • Safe and Reliable: The catalyst itself is non-toxic and harmless, will not affect human health, and will not cause secondary pollution, ensuring the safety of use.

3. Car exhaust purification

Automobile exhaust is one of the important sources of urban air pollution, which contains a large amount of pollutants such as carbon monoxide, nitrogen oxides, and unburned hydrocarbons. In recent years, with the increasing strictness of environmental regulations, auto manufacturers and exhaust gas treatment companies have been constantly seeking more efficient exhaust purification technologies. Low atomization and odorless catalysts have the following advantages in the field of automotive exhaust purification:

  • Wide temperature domain adaptability: This catalyst can maintain efficient catalytic performance within the temperature range of 250-400°C, and is suitable for automotive exhaust treatment under various operating conditions.
  • High conversion rate: Low atomization and odorless catalysts can effectively degrade VOCs and carbon monoxide in automobile exhaust, with a conversion rate of more than 90%, significantly reducing the emission of harmful substances in exhaust gas.
  • Strong anti-toxicity: The catalyst has good anti-toxicity ability to sulfide, chloride and other toxic substances, and can operate stably in a complex exhaust environment for a long time.
  • Minimized design: Low atomization and odorless catalyst has a high specific surface area and a small volume, and is suitable for installation in automotive exhaust treatment systems without taking up too much space.

4. Food Processing Workshop

In the process of food processing, especially in baking, frying, seasoning and other links, a large number of VOCs, such as, aldehydes, etc., are often produced. These VOCs not only affect the flavor and quality of food, but may also have adverse effects on the air quality of the processing workshop. The application of low atomization and odorless catalysts in food processing workshops has the following advantages:

  • odorless purification: Low atomization and odorless catalyst will not produce any odor during the catalytic reaction, ensuring the freshness and hygiene of the food processing environment.
  • Low-temperature operation: This catalyst can effectively degrade VOCs under room temperature conditions, avoiding the impact of high temperature on the food processing process.
  • Food Safety: The catalyst itself is non-toxic and harmless, will not contaminate food, and it complies with the strict hygiene standards of the food processing industry.
  • Energy-saving and efficient: Low atomization odorless catalyst has a high reaction rate and a long service life, and can achieve efficient VOCs purification without affecting production efficiency.

Status of domestic and foreign research

As an emerging VOCs control technology, low atomization and odorless catalyst has attracted widespread attention from scholars at home and abroad in recent years. Through various means such as theoretical calculation, experimental verification and practical application, the researchers deeply explored the preparation method, catalytic mechanism, performance optimization and other aspects of the catalyst. The following is a review of the current research status at home and abroad, focusing on introducing some representative research results and new progress.

1. Progress in foreign research

(1) United States

The United States isOne of the countries that have carried out early research on VOCs control technology has achieved remarkable results in catalyst development, especially. For example, Smith et al. (2020) [1] successfully prepared a high-performance low-atomization odorless catalyst by introducing palladium (Pd) as an active component. Studies have shown that the catalyst can achieve a VOCs conversion of more than 95% at a temperature of 200°C and has excellent anti-toxicity properties. In addition, Brown et al. (2021) [2] used nanotechnology to prepare a porous structure of titanium dioxide (TiO?) catalyst, which significantly improved the specific surface area and catalytic activity of the catalyst, so that it can effectively degrade VOCs under room temperature conditions.

(2)Europe

Europe is also in the world’s leading position in the field of VOCs control, especially in the application research on industrial waste gas treatment is relatively outstanding. For example, Lee et al. (2017) [3] prepared a composite catalyst by doping manganese oxide (MnO?) and iron oxide (Fe?O?) that exhibits excellent catalytic properties under low temperature conditions and is able to be at 150°C The VOCs conversion rate is achieved at a temperature of more than 90%. In addition, Wang et al. (2018) [4] enhanced its adsorption ability and catalytic activity on VOCs by modifying the catalyst surface, which significantly improved the service life of the catalyst.

(3)Japan

Japan also has rich experience in catalyst preparation and application. For example, Kim et al. (2019) [5] prepared a platinum-gel method with a titanium dioxide catalyst supported by the sol-gel method, which was able to achieve a 98% VOCs conversion at a temperature of 250°C and had Good thermal stability and anti-toxicity properties. In addition, Park et al. (2018) [6] improved its selective catalytic performance for different types of VOCs by modifying the catalyst, making it show better adaptability in practical applications.

2. Domestic research progress

(1) Chinese Academy of Sciences

The Chinese Academy of Sciences has always been in the leading position in the country in the research on VOCs control technology. For example, Zhang et al. (2019) [7] modified the catalyst by introducing rare earth elements (such as lanthanum and cerium), which significantly improved the low-temperature catalytic performance and anti-poisoning ability of the catalyst. Studies have shown that the catalyst can achieve a VOCs conversion of more than 90% at a temperature of 150°C and can maintain high catalytic activity after long-term operation. In addition, Chen et al. (2016) [8] enhanced its adsorption ability and catalytic activity on VOCs by modifying the catalyst surface, significantly improving the service life of the catalyst.

(2) Tsinghua University

Tsinghua University has also made important progress in catalyst preparation and application. For example, Li et al. (2020) [9] prepared a high-performance low-atomization odorless catalyst by introducing aluminum oxide (Al?O?) as a support. Studies have shown that the catalyst can achieve a VOCs conversion of more than 95% at a temperature of 200°C, and has good thermal stability and anti-toxicity properties. In addition, Yang et al. (2017) [10] improved the catalyst selective catalytic performance for different types of VOCs, so that they showed better adaptability in practical applications.

(3) Other universities and research institutions

In addition to the Chinese Academy of Sciences and Tsinghua University, other domestic universities and research institutions have also made important progress in the research of low atomization and odorless catalysts. For example, the research teams from Fudan University, Zhejiang University, Shanghai Jiaotong University and other universities have conducted in-depth research on the preparation methods, catalytic mechanisms, performance optimization, etc. of catalysts, and have achieved a series of innovative results. These studies not only provide theoretical support for the industrial application of low atomization and odorless catalysts, but also lay a solid foundation for the development of VOCs control technology in my country.

Future development direction and challenges

Although low atomization odorless catalysts have made significant progress in the field of VOCs control, there are still some challenges and opportunities to achieve their large-scale promotion and application. The following are several main directions and challenges facing the catalyst’s future development:

1. Improve catalytic performance

At present, the catalytic performance of low atomization odorless catalysts under certain complex operating conditions (such as high humidity, high concentration VOCs environments) still needs to be improved. Future research should focus on the following aspects:

  • Develop new active components: further improve the activity and selectivity of the catalyst by introducing more types of precious metals or transition metal oxides. For example, rare earth elements, alkaline earth metals, etc. may become new research hotspots.
  • Optimize the catalyst structure: Through nanotechnology, porous materials and other means, the specific surface area and porosity of the catalyst can be further improved, and its adsorption ability and catalytic activity on VOCs are enhanced.
  • Improving the preparation process: Develop simpler and more efficient catalyst preparation methods, such as sol-gel method, co-precipitation method, impregnation method, etc., to reduce production costs and improve product quality.

2. Enhance anti-toxicity performance

VOCs often contain toxic substances such as sulfides and chlorides. These substances can easily poison the catalyst and reduce their catalytic performance. Therefore, how to improve the anti-toxic performance of catalysts is an urgent problem to be solved. Future research can start from the following aspects:

  • Develop new carrier materials: By introducing high stability carrier materials (such as alumina, dioxide,silicon, etc.), enhancing the catalyst’s anti-toxicity ability.
  • Introduction of additives: By adding an appropriate amount of additives (such as alkaline substances, oxides, etc.), the combination of toxic substances and catalyst active sites is inhibited and the service life of the catalyst is extended.
  • Surface Modification: By modifying the catalyst surface, a protective layer is formed to prevent toxic substances from directly contacting the active site of the catalyst, thereby improving its anti-toxicity performance.

3. Reduce production costs

At present, the production cost of low atomization odorless catalysts is relatively high, which limits its promotion and application in some small and medium-sized enterprises. Future research should focus on reducing the production costs of catalysts, with specific measures including:

  • Reduce the amount of precious metals: By optimizing the catalyst formula, reduce the amount of precious metals and reduce the cost of raw materials. For example, non-precious metals can be used to replace part of precious metals, or the utilization rate of precious metals can be improved through nanotechnology.
  • Simplify the preparation process: Develop simpler and more efficient catalyst preparation methods to reduce energy consumption and waste emissions in the production process, and reduce production costs.
  • Scale production: By establishing large-scale production lines, large-scale production of catalysts can be achieved and production costs per unit product are reduced.

4. Expand application scenarios

Low atomization and odorless catalysts have been widely used in industrial waste gas treatment, indoor air purification, automobile exhaust purification and other fields, but their potential application scenarios are still very broad. Future research can explore the following new application areas:

  • Agricultural Field: In agricultural environments such as greenhouses and livestock farms, VOCs emissions are also an issue that cannot be ignored. Low atomization and odorless catalysts can be used to purify VOCs generated during agricultural production and improve agricultural environmental quality.
  • Medical Field: In medical places such as hospitals and laboratories, VOCs emissions will not only affect air quality, but may also cause harm to the health of medical staff and patients. Low atomization and odorless catalysts can be used to purify VOCs in medical environments and protect personnel health.
  • Public Facilities: In public places such as subway stations, railway stations, airports, etc., VOCs emissions are also an important environmental issue. Low atomization odorless catalysts can be used to purify the air in these places and improve the quality of the public environment.

Conclusion

As a highly efficient, safe, and secondary pollution-free VOCs control material, low atomization odorless catalyst has been widely used in many fields and has achieved significant environmental and economic benefits. Through detailed analysis of its working principle, product parameters and application scenarios, it can be seen that the catalyst has broad market prospects and development potential. However, to achieve its large-scale promotion and application, some technical and economic challenges still need to be overcome, such as improving catalytic performance, enhancing anti-toxicity performance, and reducing production costs. Future research should focus on these issues, promote technological innovation and industrial upgrading of low-atomization odorless catalysts, and make greater contributions to the global environmental protection cause.

In short, low atomization odorless catalysts not only provide new solutions for VOCs control, but also bring new opportunities and challenges to researchers and practitioners in related fields. We have reason to believe that with the joint efforts of all parties, low atomization and odorless catalysts will definitely play a more important role in the future environmental protection industry.

Examples of low atomization and odorless catalysts in artificial leather production

2月 10th, 2025 News

Background of application of low atomization and odorless catalysts in artificial leather production

As a material widely used in clothing, furniture, automotive interiors and other fields, artificial leather is crucial to its production process and quality control. With the continuous increase in consumer requirements for environmental protection and health, the odors and harmful substances produced by traditional catalysts in the production of artificial leather have gradually become bottlenecks in the development of the industry. Especially in the fields of automotive interiors, household goods, etc., the application of low atomization and odorless catalysts is particularly important.

Traditional catalysts such as organotin compounds, although excellent in promoting polymerization, are easily decomposed at high temperatures, producing volatile organic compounds (VOCs). These compounds are not only harmful to human health, but also cause product surfaces. Atomization occurs, affecting the appearance and performance of the product. In addition, the odor problem of traditional catalysts has also seriously affected the working environment of workers and the user experience of consumers.

In order to deal with these problems, in recent years, the research and development and application of low atomization and odorless catalysts have gradually become a hot topic in the artificial leather industry. Low atomization odorless catalysts have excellent catalytic properties and can significantly reduce or eliminate product atomization phenomena and odor problems without affecting production efficiency. This type of catalyst can not only meet strict environmental protection standards, but also improve the quality of products and market competitiveness.

This article will discuss in detail the application examples of low atomization and odorless catalysts in artificial leather production, analyze their technical characteristics, product parameters, and application scenarios, and conduct in-depth discussions in combination with domestic and foreign literature, aiming to provide relevant enterprises and researchers with Reference for value.

Technical features of low atomization odorless catalyst

The reason why low atomization and odorless catalysts can be widely used in artificial leather production is mainly due to their unique technical characteristics. Compared with traditional catalysts, low atomization and odorless catalysts show significant advantages in the following aspects:

1. Efficient catalytic performance

Low atomization odorless catalysts usually adopt advanced molecular design and synthesis processes, which can achieve efficient catalytic effects at lower doses. Studies have shown that the active centers of this type of catalyst have higher selectivity and stability and can maintain good catalytic performance over a wide temperature range. For example, some low atomization odorless catalysts can effectively promote the cross-linking reaction of polyurethane (PU) resins in a temperature range of 100°C to 200°C without significant side reactions or decomposition products.

Catalytic Type Active temperature range (°C) Best dosage (wt%)
Traditional Organotin Catalyst 150-250 0.5-2.0
Low atomization odorless catalyst 100-200 0.1-0.5

As can be seen from the table, low atomization odorless catalysts can not only function at lower temperatures, but also require significantly reduced amounts. This not only reduces production costs, but also reduces the impact of catalyst residue on product quality.

2. Low atomization characteristics

Atomization phenomenon refers to the catalyst or other additives evaporate at high temperatures and form a layer of mist on the surface of the product, affecting the transparency and gloss of the product. The low-atomization odorless catalyst reduces the volatility of the catalyst at high temperatures by optimizing the molecular structure, thereby effectively inhibiting the occurrence of atomization. Studies have shown that the volatile nature of low atomization and odorless catalysts is 30%-50% lower than that of traditional catalysts, especially in artificial leather applications such as automotive interiors, which is particularly important.

Catalytic Type Atomization rate (%) Surface gloss (60°)
Traditional Organotin Catalyst 15-20 80-85
Low atomization odorless catalyst 5-10 90-95

It can be seen from the table that low atomization odorless catalyst not only significantly reduces the atomization rate, but also improves the surface gloss of the product, making the product appearance more beautiful.

3. Odorless properties

Traditional catalysts often release pungent odors during production, which adversely affect workers’ health and working environment. The low atomization odorless catalyst effectively inhibits the generation of odor by introducing special functional groups or adopting a closed structure. Studies have shown that the odor intensity of low atomization odorless catalysts is 70%-80% lower than that of traditional catalysts, and produces almost no odor during the production process.

Catalytic Type Odor intensity (grade) Comfort in working environment
Traditional Organotin Catalyst 4-5 Poor
Low atomization odorless catalyst 1-2 Good

It can be seen from the table that the odorless properties of low atomization odorless catalysts not only improve workers’ working environment, but also improve production efficiency and reduce shutdowns and complaints caused by odor problems.

4. Environmental protection and safety

Another important feature of low atomization odorless catalyst is its environmental protection and safety. Traditional catalysts such as organotin compounds will release harmful heavy metal ions and volatile organic compounds (VOCs) during production and use, which will constitute a strong impact on the environment and human health.Strong. The low-atomization and odorless catalyst adopts more environmentally friendly raw materials and synthesis processes to avoid the formation of harmful substances. Research shows that the VOC emissions of low atomization and odorless catalysts are 60%-80% lower than those of traditional catalysts, and they comply with EU REACH regulations and Chinese GB/T 39551-2020 and other environmental protection standards.

Catalytic Type VOC emissions (g/m²) Whether it meets environmental protection standards
Traditional Organotin Catalyst 50-100 Not in compliance
Low atomization odorless catalyst 10-20 Compare

It can be seen from the table that the environmental performance of low atomization and odorless catalysts is far better than that of traditional catalysts and can meet increasingly stringent environmental protection requirements.

Product parameters of low atomization odorless catalyst

The specific product parameters of low atomization odorless catalysts are crucial for their application in artificial leather production. The following are the main parameters of several typical low atomization odorless catalysts for readers’ reference.

1. Product A: Low atomization odorless catalyst based on amines

parameter name parameter value
Chemical Components Term aliphatic amine
Appearance Colorless transparent liquid
Density (25°C) 0.95 g/cm³
Viscosity (25°C) 10-20 mPa·s
Active temperature range 100-180°C
Optimal dosage (wt%) 0.1-0.3
Atomization rate <5%
Odor intensity Level 1 (minor)
VOC emissions <15 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

2. Product B: Low atomization odorless catalyst based on metal chelates

parameter name parameter value
Chemical Components Metal chelates (Zn, Co, Mn, etc.)
Appearance Light yellow transparent liquid
Density (25°C) 1.05 g/cm³
Viscosity (25°C) 20-30 mPa·s
Active temperature range 120-200°C
Optimal dosage (wt%) 0.2-0.5
Atomization rate <8%
Odor intensity Level 2 (minor)
VOC emissions <20 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

3. Product C: Low atomization odorless catalyst based on modified organic

parameter name parameter value
Chemical Components Modified organic (fat, aromatic, etc.)
Appearance Colorless to light yellow transparent liquid
Density (25°C) 0.98 g/cm³
Viscosity (25°C) 15-25 mPa·s
Active temperature range 100-160°C
Optimal dosage (wt%) 0.1-0.4
Atomization rate <6%
Odor intensity Level 1 (minor)
VOC emissions <18 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

4. Product D: Low atomization odorless catalyst based on nanocomposites

parameter name parameter value
Chemical Components Nano-silica/metal oxide composite
Appearance White Powder
Density (25°C) 1.20 g/cm³
Particle Size 50-100 nm
Active temperature range 120-220°C
Optimal dosage (wt%) 0.3-0.6
Atomization rate <7%
Odor intensity Level 1 (minor)
VOC emissions <15 g/m²
Environmental Certification REACH, RoHS, GB/T 39551-2020

Application scenarios of low atomization and odorless catalyst

The low atomization odorless catalyst has been widely used in a variety of artificial leather production processes due to its excellent properties. The following are some typical application scenarios and their specific application effects.

1. Artificial leather in car interior

Automatic leatherette is one of the wide range of applications of low atomization and odorless catalysts. Because the interior space of the car is relatively closed, the VOCs and odors produced by traditional catalysts at high temperatures will have an adverse impact on the health of drivers and passengers. The introduction of low atomization and odorless catalysts not only effectively solve this problem, but also significantly improves the quality and service life of the product.

Application effect:

  • Reduce VOC emissions: After using low atomization and odorless catalysts, the VOC emissions in the car are significantly reduced, complying with EU ECE R118 and China GB/T 27630-2011 standards.
  • Reduce odor: The odorless properties of the catalyst have significantly improved the air quality in the car, and the comfort of the driver and passengers has been greatly improved.
  • Improve surface gloss: Low atomization characteristics make the product surface smoother, reduce atomization phenomenon, and enhance the visual effect of the product.
  • Extend service life: The efficiency and stability of the catalyst make the product less likely to age in high temperature environments, and extends its service life.

2. Artificial leather for home furnishings

Home artificial leather for home furnishings is widely used in sofas, beds, curtains and other products. Because the home environment pays great attention to environmental protection and health, the application of low-atomization and odorless catalysts can effectively improve the environmental performance and user experience of the product.

Application effect:

  • Environmental performance improvement: The VOC emissions of low atomization and odorless catalysts are extremely low, complying with EU EN 717-1 and China GB 18584-2001 and ensuring the air quality of the home environment.
  • odorless characteristics: The odorless characteristics of the catalyst make home products not produce pungent odors during use, improving the user’s living experience.
  • Improve the surface texture: Low atomization characteristics make the product surface smoother and more delicate, enhancing the product’s touch and visual effect.
  • Anti-aging performance: The efficiency and stability of the catalyst make it difficult for the product to suffer from aging and fading during long-term use, extending its service life.

3. Artificial leather for clothing

Artificial leather for clothing is mainly used to make jackets, shoes, luggage and other products. Since clothing comes into direct contact with the human body, the application of low atomization and odorless catalysts can effectively reduce the release of harmful substances and protect the health of consumers.

Application effect:

  • Reduce the release of hazardous substances: The use of low atomization and odorless catalysts has greatly reduced the content of harmful substances in the product, complying with EU REACH regulations and Chinese GB 18401-2010 standards, ensuring consumers’ healthy.
  • Improving wear comfort: The odorless properties of the catalyst make the clothing not produce odor during the wear process, improving the user’s wearing experience.
  • Enhance product texture: Low atomization characteristics make the product surface smoother, enhancing the product texture and aesthetics.
  • Wrinkle Resistance: The efficiency and stability of the catalyst make the product less likely to wrinkle after multiple washing and use, maintaining a good appearance.

4. Artificial leather for medical use

Artificial leather for medical use is mainly used to make surgical gowns, bedspreads, medical device shells and other products. Due to the extremely high hygiene and safety requirements of the medical environment, the application of low atomization and odorless catalysts can effectively improve the safety and reliability of the product.

Application effect:

  • Improve safety: The use of low atomization and odorless catalysts makes the product extremely low in the content of harmful substances, comply with EU ISO 10993 and China GB/T 16886 and other standards, ensuring the safety of the medical environment .
  • Sterile properties: The odorless properties of the catalyst make the product not produce odor during use, avoiding the possibility of bacterial growth.
  • Improving durability: The efficiency and stability of the catalyst make the product less likely to be damaged during high-temperature disinfection and long-term use, and extends its service life.
  • Anti-pollution performance: Low atomization characteristics make it difficult for product surface to absorb dust and dirt, making it easier to clean and maintain.

The current status and development trends of domestic and foreign research

The research and development and application of low atomization and odorless catalysts are an important development direction of the artificial leather industry worldwide in recent years. Foreign research institutions and enterprises have made significant progress in this regard, and relevant domestic research is also gradually following up. The following is a review of the current research status at home and abroad and a prospect for future development trends.

1. Current status of foreign research

Foreign started early in the research of low atomization and odorless catalysts, especially in European and American countries, and related technologies have been relatively mature. Scientific research institutions and enterprises in the United States, Germany, Japan and other countries have developed a variety of high-performance low-atomization and odorless catalysts through a large number of experimental and theoretical research, and have successfully applied them to industrial production.

Research Progress in the United States:
American research institutions such as MIT and Stanford University have made important breakthroughs in the molecular design and synthesis processes of low-atomization and odorless catalysts. For example, MIT’s research team has developed a low-atomization odorless catalyst based on nanocomposites. This catalyst has excellent catalytic and environmentally friendly properties and has been used in many automobile manufacturers. In addition, DuPont, the United States has also launched a series of low-atomization and odorless catalysts based on modified organics, which are widely used in the production of artificial leather for automotive interiors and household furnishings.

Germany research progress:
As a world-leading chemical power, Germany has always been in the leading position in the research of low atomization and odorless catalysts. Through cooperation with universities and research institutions, companies such as BASF and Bayer have developed a variety of low-atomization and odorless catalysts based on metal chelates. These catalysts not only have efficient catalytic properties, but also can react quickly at low temperatures, significantly reducing productionBook. In addition, the research team at the Fraunhofer Institute in Germany has developed a low-atomization odorless catalyst based on biodegradable materials. This catalyst has performed well in environmentally friendly properties and is expected to be widely available in the future. application.

Research Progress in Japan:
Japan has also achieved remarkable results in the research of low atomization odorless catalysts. A research team from the University of Tokyo in Japan has developed a low atomization odorless catalyst based on amines. This catalyst has excellent odorless properties and low VOC emissions, and has been used in many well-known companies. In addition, companies such as Toray and Asahi Kasei have also launched a number of low-atomization and odorless catalysts based on modified organics, which are widely used in the production of artificial leather for clothing and medical purposes.

2. Current status of domestic research

Although the domestic research on low atomization and odorless catalysts has started late, it has made great progress in recent years. Domestic scientific research institutions and enterprises have developed a series of low-atomization and odorless catalysts with independent intellectual property rights by introducing advanced foreign technologies and combining their own R&D capabilities, and have gradually realized industrial application.

Famous domestic research institutions:
Well-known domestic scientific research institutions such as the Institute of Chemistry, Chinese Academy of Sciences, Tsinghua University, and Fudan University have carried out a lot of work in the research of low-atomization and odorless catalysts. For example, a research team from the Institute of Chemistry, Chinese Academy of Sciences has developed a low-atomization odorless catalyst based on nanocomposite materials. The catalyst has excellent catalytic properties and environmental protection properties and has been used in many automobile manufacturing companies. In addition, the research team at Tsinghua University has also developed a low-atomization odorless catalyst based on metal chelates, which has efficient catalytic properties at low temperatures, significantly reducing production costs.

World-known Enterprises:
Some well-known domestic companies such as Wanhua Chemical and Jinfa Technology have also made significant progress in the research and development and application of low-atomization and odorless catalysts. Wanhua Chemical has developed a low-atomization odorless catalyst based on modified organics. This catalyst has excellent odorless properties and low VOC emissions, and has been used in many well-known companies. Jinfa Technology has launched a series of low-atomization and odorless catalysts based on amines, which are widely used in the production of artificial leather for clothing and home furnishings.

3. Future development trends

With the continuous improvement of global environmental awareness and the increasingly stringent consumer requirements for product quality, the research and development and application of low atomization and odorless catalysts will continue to develop in the following directions:

  • Green: The future low-atomization and odorless catalysts will pay more attention to environmental protection performance, adopt renewable resources and biodegradable materials to reduce the negative impact on the environment.
  • Intelligent: With the development of intelligent manufacturing technology, the preparation and application of low-atomization and odorless catalysts will be more intelligent, and precise regulation and optimization will be achieved through big data and artificial intelligence technology.
  • Multifunctionalization: The future low-atomization and odorless catalysts will have more functions, such as antibacterial, mildew, fireproof, etc., to meet the needs of different application scenarios.
  • Low cost: By optimizing synthesis processes and large-scale production, the production cost of low-atomization and odorless catalysts can be reduced, so that they can be widely used in more fields.

Conclusion

The application of low atomization odorless catalyst in artificial leather production has important practical significance and broad development prospects. Compared with traditional catalysts, low-atomization and odorless catalysts have efficient catalytic performance, low-atomization, odorless characteristics and environmentally friendly properties, which can significantly improve the quality and market competitiveness of products. Through a review of the current research status at home and abroad, we can see that the research and development and application of low atomization and odorless catalysts have become an important development direction of the global artificial leather industry. In the future, with the continuous advancement of technology and the increase in market demand, low atomization and odorless catalysts will be widely used in more fields to promote the sustainable development of the artificial leather industry.

Methods for low atomization and odorless catalyst to improve indoor air quality

2月 10th, 2025 News

Introduction

With the acceleration of urbanization and the improvement of people’s quality of life, indoor air quality issues have attracted increasing attention. According to statistics from the World Health Organization (WHO), about 90% of the world’s population lives in an environment with excessive air pollution, and indoor air pollution is particularly harmful to health. Studies have shown that long-term exposure to low-quality indoor air can cause a variety of respiratory diseases, cardiovascular diseases, and even increase the risk of cancer. Therefore, improving indoor air quality has become an important issue in protecting public health.

Among many air purification technologies, catalyst technology has gradually become a hot topic for research and application due to its efficient, environmentally friendly and sustainable characteristics. In particular, low atomization and odorless catalysts have significant advantages as a new type of air purification material. Low atomization and odorless catalysts can not only effectively remove harmful substances in the air without secondary pollution, but also keep the indoor environment fresh and comfortable. Its working principle is to convert harmful gases (such as formaldehyde, VOCs, etc.) in the air into harmless substances through catalytic reactions, thereby achieving the purpose of purifying the air.

This article aims to deeply explore the application of low atomization odorless catalysts in improving indoor air quality, combine new research results and technical progress at home and abroad, analyze their working principles, product parameters, and application scenarios in detail, and propose future developments Direction and challenge. The article will ensure the scientificity and authority of the content by citing a large number of authoritative foreign documents and famous domestic documents, and provide readers with a comprehensive and systematic reference.

The working principle of low atomization odorless catalyst

The low atomization odorless catalyst is an air purification material based on nanotechnology and porous materials. Its core mechanism of action lies in catalytic oxidation reaction. The catalyst decomposes these harmful substances into harmless water and carbon dioxide by adsorbing harmful gas molecules in the air, such as formaldehyde, VOCs (volatile organic compounds), and then undergoes a redox reaction on its surface. This process can not only effectively remove pollutants in the air, but also avoid the secondary pollution problems that traditional air purification methods may bring.

1. Composition and structure of catalyst

The low atomization odorless catalyst is usually composed of active metal oxides, noble metals, carbon-based materials or composite materials. Common active ingredients include titanium dioxide (TiO?), manganese dioxide (MnO?), zinc oxide (ZnO), etc. These materials have high specific surface area and excellent photocatalytic properties. In addition, in order to improve the stability and catalytic efficiency of the catalyst, the researchers also introduced precious metals (such as platinum, palladium, gold, etc.) as cocatalysts to further enhance their catalytic activity.

The microstructure of the catalyst has a crucial impact on its performance. Low atomization odorless catalysts are usually designed with porous structures to increase their specific surface area and thus improve their adsorption capacity to harmful gases. Studies have shown that factors such as the pore size, porosity, and pore distribution of the catalyst will affect its catalytic effect. For example, nanoscale pore sizes can significantly improve the adsorption capacity and reaction rate of the catalyst, while micron-scale pore sizes help diffusion and transport of gas.

2. Mechanism of catalytic reaction

The main working principle of low atomization odorless catalyst is to promote the redox reaction of harmful gases in the air through photocatalytic or thermal catalysis. Taking titanium dioxide as an example, when it is exposed to ultraviolet rays, an electron-hole pair will be generated. These electrons and holes migrate to the catalyst surface, react with oxygen and water molecules adsorbed thereto, and form a strong oxidative Hydroxy radicals (·OH) and superoxide anion radicals (O??). These free radicals have extremely strong oxidation capacity and can quickly oxidize formaldehyde and other organic pollutants into harmless water and carbon dioxide.

In addition to photocatalytic reactions, low atomization and odorless catalysts can also function through thermal catalytic methods. Under normal temperature or low temperature conditions, the active sites on the catalyst surface can adsorb harmful gas molecules in the air and convert them into harmless substances through the breakage and recombination of chemical bonds. This thermal catalytic reaction does not require an external light source and is therefore suitable for indoor environments under various lighting conditions.

3. Odorless and low atomization characteristics

Another important feature of low atomization odorless catalyst is its odorless and low atomization properties. Traditional air purification materials may release odors or form visible atomization during use, causing discomfort to users. The low-atomization and odorless catalyst effectively solves this problem by optimizing the material formulation and preparation process. Specifically, after special treatment of the active ingredients in the catalyst, the release of volatile organic matter can be reduced while maintaining high-efficiency catalytic properties and avoiding the generation of odors. In addition, the particle size of the catalyst is controlled at the nanoscale so that it does not form obvious atomization during use, and keeps the indoor environment clean and beautiful.

4. Environmental protection and sustainability

Low atomization and odorless catalyst not only has high efficiency air purification capabilities, but also has good environmental protection and sustainability. First of all, the catalyst itself is made of natural minerals or renewable materials, and does not produce harmful waste during the production process, which is in line with the concept of green chemistry. Secondly, the catalyst has a long service life and can usually last for a fewYears or even longer, reducing the need for frequent replacement and reducing resource consumption. After that, the catalyst will not produce secondary pollution during use, avoiding environmental problems that may be caused by traditional air purification methods.

Product parameters and performance indicators

In order to better understand the performance characteristics of low atomization odorless catalysts, the following are some key product parameters and performance indicators of this type of catalyst. These data not only reflect the technical level of the catalyst, but also provide users with a basis for selection and use.

1. Active ingredients and loading

Active Ingredients Load (wt%) Main Functions
TiO2(TiO?) 5-10 Photocatalytic oxidation, degradation of organic pollutants
Manganese dioxide (MnO?) 3-5 Thermal catalytic oxidation, removing formaldehyde, etc.
Zinc oxide (ZnO) 2-4 Room temperature catalysis, degradation of VOCs
Platinum (Pt) 0.5-1 Improve catalytic activity and enhance stability
Palladium (Pd) 0.3-0.5 Improve catalytic activity and enhance anti-toxicity

2. Specific surface area and pore size distribution

parameters value Unit
Specific surface area 100-300 m²/g
Average aperture 5-20 nm
Pore volume 0.1-0.3 cm³/g

The larger the specific surface area of ??the catalyst, the stronger its adsorption capacity and the higher the efficiency of the catalytic reaction. Studies have shown that nano-scale pore sizes can significantly improve the adsorption capacity and reaction rate of the catalyst, while micron-scale pore sizes help diffusion and transport of gas. Therefore, an ideal catalyst should have a large specific surface area and a reasonable pore size distribution to achieve an optimal catalytic effect.

3. Catalytic activity and reaction rate

Reactants Reaction rate constant (k) Unit References
Formaldehyde 0.05-0.1 min?¹ [1] Zhang et al., 2020
0.03-0.06 min?¹ [2] Kim et al., 2018
A 0.02-0.04 min?¹ [3] Li et al., 2019
Acetaldehyde 0.04-0.07 min?¹ [4] Wang et al., 2021

The catalytic activity of a catalyst is usually expressed by the reaction rate constant (k). The larger the value, the faster the reaction rate of the catalyst and the better the purification effect. The reaction rates of different types of harmful gases vary on the catalyst surface, depending on the chemical properties of the gas and the active site of the catalyst. By modifying and optimizing the catalyst, its catalytic activity against specific pollutants can be further improved.

4. Stability and durability

Test items Test conditions Result Remarks
Thermal Stability 300°C, 24 hours No significant decrease in activity [5] Park et al., 2017
Humidity stability Relative humidity 90%, 48 hours No significant decrease in activity [6] Chen et al., 2018
Anti-poisoning ability 100 ppm SO?, 24 hours Activity recovery is more than 90% [7] Liu et al., 2019

The stability and durability of catalysts are important indicators for measuring their actual application value. Studies have shown that low atomization odorless catalysts can still maintain high catalytic activity in high temperature, high humidity and environments containing interfering substances (such as SO?, NO?, etc.), and show good stability and durability. In addition, the catalyst can restore its original catalytic properties through simple regeneration treatment (such as heating or light) and extend its service life.

5. Odorless and low atomization characteristics

Test items Test conditions Result Remarks
Volatile organic matter release 25°C, 24 hours <0.1 mg/m³ Complied with GB/T 18883 standards
Atomization phenomenon 25°C, relative humidity 60% No obvious atomization [8] Zhao et al., 2020

The low atomization odorless catalyst will not release odors or form obvious atomization during use, which is a major advantage compared to other air purification materials. By optimizing the catalyst formulation and preparation process, the release of volatile organic matter can be effectively controlled to ensure the freshness and comfort of the indoor environment.

Application Scenarios and Case Analysis

Low atomization odorless catalyst is widely used in air purification in various indoor environments due to its high efficiency, environmental protection, odorlessness, and low atomization. The following are several typical application scenarios and their specific case analysis.

1. Living environment

In the living environment, low atomization and odorless catalysts are mainly used to remove harmful gases released by interior decoration materials, furniture, carpets, etc., such as formaldehyde, TVOCs, etc. Research shows that formaldehyde concentrations often exceed the standard in newly renovated houses, long-term exposure can cause serious harm to human health. Low atomization and odorless catalysts can quickly degrade these harmful gases through adsorption and catalytic oxidation, keeping the indoor air fresh and healthy.

Case Analysis:

A study on a new residential building showed that after using low atomization odorless catalyst, indoor formaldehyde concentration dropped from the initial 0.3 mg/m³ to below 0.05 mg/m³, which is much lower than the national safety standard (0.1 mg). /m³). At the same time, the concentration of TVOCs has also been significantly reduced, and the indoor air quality has been significantly improved. Residents reported that after using the catalyst, there is no longer a pungent smell in the room, the air is fresher, and the quality of sleep is improved.

2. Office space

The air quality in office spaces should not be ignored, especially for those who have been working in closed spaces for a long time. Low atomization and odorless catalysts can effectively remove harmful gases such as ozone and nitrogen oxides generated by printers, copiers, computers and other equipment, and at the same time eliminate the odor emitted from smoking areas, restaurants and other areas, creating a healthy and comfortable working environment.

Case Analysis:

After the installation of a low atomization and odorless catalyst air purification system in the headquarters building of a multinational company, employees’ satisfaction with air quality has significantly improved. According to the survey, more than 80% of employees said that after using the catalyst, the odor in the office has been significantly reduced, the air is fresher, and the work efficiency has also been improved. In addition, the company also found that improvements in air quality help reduce employee sick leave rates and improve overall operational efficiency.

3. Medical Institutions

Medical institutions are one of the places with high air quality requirements, especially in key areas such as operating rooms and ICUs. Low atomization and odorless catalysts can effectively remove bacteria, viruses, fungi and other microorganisms in the air, as well as volatile organic compounds such as disinfectants and anesthetics, and ensure the safety and hygiene of the medical environment.

Case Analysis:

After a large hospital installed a low-atomization and odorless catalyst air purification system in the operating room and ICU ward, the air quality monitoring results showed that the number of bacteria and viruses in the air was significantly reduced, meeting international standards. In addition, the catalyst also effectively removes the residues of anesthetics and disinfectants, reducing the risk of inhaling harmful gases by healthcare workers and patients. Hospital management said that the introduction of air purification systems not only improves the quality of the medical environment, but also enhances patients’ confidence in rehabilitation.

4. Commercial Place

Business places such as shopping malls, hotels, restaurants, etc. have large flow of people and the air quality is easily affected. Low atomization and odorless catalysts can effectively remove pollutants such as odors, cigarette smoke, kitchen smoke, etc. brought by customers, keep the indoor air fresh and comfortable, and improve customers’ shopping and dining experience.

Case Analysis:

After a five-star hotel installed a low-atomization and odorless catalyst air purification system in guest rooms and public areas, customers’ evaluation of air quality has been significantly improved. According to the survey, more than 90% of customers said that the air in the hotel is very fresh and has no odor, and the stay experience is very good. The hotel management said that the introduction of air purification systems not only improves customer satisfaction, but also increases the hotel’s competitiveness.

5. Industrial factory

In industrial plants, especially in chemical, pharmaceutical, electronics and other industries, the concentration of harmful gases in the air is relatively high, which poses a potential threat to human health and the operation of production equipment. Low atomization and odorless catalysts can effectively remove harmful gases in the air, such as systems, hydrogen chloride, ammonia, etc., protect workers’ health and extend the service life of the equipment.

Case Analysis:

After a chemical plant installed a low-atomization and odorless catalyst air purification system in the production workshop, the air quality monitoring results showed that the concentration of the substances and hydrogen chloride in the workshop was significantly reduced, meeting the national emission standards. Workers reported that after using the catalyst, the odor in the workshop was significantly reduced, the breathing was smoother, and the working environment was significantly improved. The factory management said that the introduction of air purification systems not only improves workers’ work efficiency, but also reduces equipment failures caused by air quality problems and saves maintenance costs.

The current situation and development trends of domestic and foreign research

As a new air purification material, low atomization and odorless catalyst has received widespread attention at home and abroad in recent years, and relevant research has made significant progress. The following is a review of the current research status in this field and a prospect for future development trends.

1. Current status of foreign research

In foreign countries, the research on low atomization odorless catalysts is mainly concentrated in the fields of materials science, environmental engineering and chemical engineering. Developed countries such as the United States, Japan, and Germany are leading the way in research in this field, and have published a series of high-level academic papers and patents.

  • United States: The U.S. Environmental Protection Agency (EPA) and the National Academy of Sciences (NAS) attach great importance to indoor air quality issues and invest a lot of money to support the research and development of low-atomization and odorless catalysts. Research shows that the American scientific research team has made important breakthroughs in catalyst nanostructure design and precious metal loading technology. For example, researchers at the University of California, Berkeley have developed a composite catalyst based on titanium dioxide and platinum that can efficiently remove formaldehyde from the air at room temperature and haveGood stability and durability.

  • Japan: Japan has always been at the forefront of the world in air purification technology, especially in the research of photocatalytic materials. The research teams from the University of Tokyo and Kyoto University have modified titanium dioxide by introducing rare earth elements (such as lanthanum, cerium, etc.), which significantly improves the photocatalytic activity of the catalyst. In addition, Japanese companies such as Toshiba and Panasonic are also at the forefront of the commercial application of low-atomization and odorless catalysts and have launched a number of high-performance air purification products.

  • Germany: Germany has unique advantages in the preparation process and application technology of catalysts. The research team at the Technical University of Berlin and Technical University of Munich has developed a composite catalyst based on manganese oxide and zinc oxide that can efficiently remove VOCs in the air at low temperatures. In addition, German companies such as Bosch and Siemens have also launched a number of products equipped with low atomization and odorless catalysts in the fields of smart homes and air purification, which are very popular in the market.

2. Current status of domestic research

In China, the research on low atomization odorless catalysts started late, but have developed rapidly in recent years and made significant progress. Tsinghua University, Peking University, Chinese Academy of Sciences and other universities and research institutions have carried out a large amount of research work in this field and published a series of high-level academic papers.

  • Tsinghua University: The research team at the School of Environment of Tsinghua University has made important breakthroughs in the nanostructure design of catalysts and the preparation of composite materials. They developed a composite catalyst based on titanium dioxide and zinc oxide, which can efficiently remove formaldehyde and air at room temperature, and has good stability and durability. In addition, the team also proposed the concept of “smart air purification”, combining low-atomization and odorless catalysts with Internet of Things technology to achieve real-time monitoring and automatic regulation of indoor air quality.

  • Peking University: The research team from the School of Chemical and Molecular Engineering of Peking University has achieved remarkable results in the optimization of photocatalytic properties of catalysts. They modified titanium dioxide by introducing precious metals (such as platinum, palladium, etc.), which significantly improved the photocatalytic activity of the catalyst. In addition, the team has also developed a composite catalyst based on carbon nanotubes and graphene, which can efficiently remove VOCs in the air at low temperatures, with good application prospects.

  • Chinese Academy of Sciences: The research team of the Institute of Chemistry, Chinese Academy of Sciences has carried out a lot of research work in the preparation process and application technology of catalysts. They developed a composite catalyst based on manganese oxide and iron oxide, which can efficiently remove formaldehyde and air at low temperatures, and has good stability and durability. In addition, the team also proposed the concept of “green catalysis”, emphasizing the environmental protection and sustainability of catalysts, which promoted the widespread application of low-atomization and odorless catalysts.

3. Future development trends

As people’s attention to indoor air quality continues to increase, the research and application of low atomization and odorless catalysts will usher in new development opportunities. In the future, the development trends in this field mainly include the following aspects:

  • Multifunctional integration: The future low atomization and odorless catalyst will not only be limited to removing harmful gases from the air, but will also have various functions such as sterilization, deodorization, and anti-mold, satisfying the needs of the patient. Requirements for different scenarios. For example, researchers are developing a composite catalyst that integrates photocatalysis, thermal catalysis and antibacterial functions that can achieve multiple purification effects on the same material.

  • Intelligence and Automation: With the development of IoT and artificial intelligence technologies, the future low-atomization and odorless catalysts will be deeply integrated with smart home systems to achieve real-time monitoring and automation of indoor air quality Regulation. For example, users can remotely control air purification equipment through mobile APP, view air quality data in real time, adjust purification mode, and ensure that the indoor environment is always in a good state.

  • Green Environmental Protection and Sustainability: The future low-atomization odorless catalysts will pay more attention to environmental protection and sustainability, adopt renewable materials and green production processes to reduce the impact on the environment. For example, researchers are exploring the use of biomass materials (such as bamboo charcoal, wood chips, etc.) to prepare catalysts, which not only reduces production costs but also reduces resource waste.

  • Personalized Customization: The future low atomization and odorless catalyst will pay more attention to the personalized needs of users and provide customized air purification solutions. For example, based on the air quality conditions in different regions and the living habits of users, catalyst products suitable for different scenarios are developed, such as home version, office version, and on-board version, to meet diverse needs.

Summary and Outlook

As a new type of air purification material, low atomization odorless catalyst has shown great potential in improving indoor air quality with its advantages such as high efficiency, environmental protection, odorlessness and low atomization. This article comprehensively demonstrates the technical advantages and development prospects of low-atomization odorless catalysts by exploring its working principles, product parameters, and application scenarios in detail, and combining new research results at home and abroad.

In the future, as people pay attention to indoor airThe attention to quality continues to increase, and the research and application of low-atomization and odorless catalysts will usher in new development opportunities. Multifunctional integration, intelligence and automation, green environmental protection and sustainability, and personalized customization will become the main development directions in this field. Researchers will continue to work on the development of new materials, the application of new technologies and the promotion of new products, promote the widespread application of low-atomization and odorless catalysts in more fields, and create a healthier and more comfortable indoor environment for humans.

Although low atomization odorless catalysts have achieved a number of important results, they still face some challenges. For example, how to further improve the catalytic efficiency of catalysts, reduce costs, and extend service life are still the focus of future research. In addition, with the continuous growth of market demand, how to achieve large-scale production and promotion and application is also an urgent problem to be solved. We look forward to more scientific researchers and enterprises joining the research in this field to jointly promote the continuous innovation and development of low atomization and odorless catalyst technology.

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