Guggenheim-Anderson-de Boer isotherm equation as applied to determining texture parameters of sorbents with compounds grafted to their surfaces

摘要

By processing the data on benzene adsorption on the surface of silicas containing compounds grafted to their surface, it is shown that the potential of the BET adsorption isotherm equation is greatly limited for determining the texture parameters of these sorbents. The three-parameter Guggenheim-Anderson-de Boer adsorption isotherm equation is recommended to be used rather than the two-parameter BET adsorption isotherm equation for more reliable assessment of structural characteristics of these sorbents.