The adsorption of zeolite molecular sieves is a physical change process. Adsorption is mainly caused by surface force generated by molecular attraction on solid surfaces. When fluid flows through, some molecules in the fluid collide with the adsorbent surface through random motion, resulting in molecular enrichment on the surface. This reduces the number of such molecules in the fluid to achieve separation and removal effects.
2. Ion Exchange Performance
The commonly referred to ion exchange means the exchange of compensating cations outside the framework of zeolite molecular sieves. The compensating ions outside the zeolite framework are generally protons, alkali metals or alkaline earth metals. They can be easily ion-exchanged into metal ion-type zeolite molecular sieves of various valences in aqueous metal salt solutions.
3. Catalytic Performance
Most zeolite molecular sieves possess strong acid sites on their surfaces, and powerful Coulomb fields inside crystal pores exert polarization effects. These characteristics make them high-performance catalysts.
