ABSTRACT
This chapter provides how adsorption in micropores is used as a method for the measurement of the micropore volume using the Dubinin, the t-plot method, and other isotherms is explained. Gas adsorption measurements are widely used for the characterization of the surface area along with the porosity of porous materials. The grand canonical ensemble method is now applied to handle the adsorption process in zeolites along with other microporous materials. The adsorption process, within the frame of the Brunauer–Emmett–Teller (BET) theory, is contemplated as a layer-by-layer process. Porous materials the porosity such as micropores, mesopores, and macropores is integrated in the material as a whole. However, the BET surface area is widely taken as a reproducible parameter for the characterization of the surface of porous materials, even though in some cases lacks a precise physical meaning. One more cause of error in the application of the BET equation during adsorption experiments is the determination of the adsorbent mass.
