Molecular sieve is an important adsorbent and catalyst. Due to its uniform and stable molecular structure 

and good adsorption and separation properties, it is widely used in the following fields:

1. Gas separation: According to the size and polarity of different gas molecules, molecular sieves can be 

used for the separation and purification of mixed gases, such as air separation, natural gas purification, etc.

2. Catalyst: As a catalyst carrier, molecular sieve can be used for the cracking of macromolecular compounds, 

the synthesis of organic matter, etc.

3. Adsorbent: Molecular sieve has good adsorption and purification effects on harmful substances in the air, 

such as formaldehyde, benzene, etc., as well as odors, different colors, heavy metals and organic matter in water.

4. Oxygen supply materials: Molecular sieves can be used to prepare oxygen supply materials such as high-performance 

batteries and solid-state fuel cells.

5. Desiccant: Since molecular sieve is good at adsorbing moisture, it can be used as a desiccant, such as for drying air, natural gas and other gases.

6. Drug synthesis: Molecular sieves can be used in catalysis, adsorption and separation in the drug synthesis process.

7. Environmental management: Molecular sieves can be used in water treatment, waste gas treatment and other fields 

to effectively remove pollutants and improve environmental quality.

8. Petrochemical industry: In the field of petrochemical industry, molecular sieves can be used for catalytic cracking, 

alkylation and other reactions of hydrocarbon compounds.

9. Emerging fields: In addition to the above application fields, molecular sieves can also be used in emerging fields such as microlasers, 

nonlinear optical materials and nanodevices.

In short, due to the excellent physical and chemical properties of molecular sieves, their application fields are constantly expanding, 

bringing many conveniences to human production and life.