Study on CO2 Adsorption by MAF stu-1(Zn/Cd)Using Ideal Adsorption Solution Theory and the Virial Equation
The novel bimetallic MAF stu-1(Zn/Cd)adsorbent demonstrates excellent CO2 adsorption perfor-mance and cyclic stability,with a maximum CO2 adsorption capacity of 93 cm3/g.However,its separation and regeneration performance for binary mixtures containing impure CO2 remains under-explored.Fitting calcula-tions using Ideal Adsorption Solution Theory(IAST)and the Virial Equation on the Cd-modified adsorbent show that MAF stu-1(5％Cd)has a CO2 adsorption enthalpy of about 36 kJ/mol,which is much lower than that of industrial CO2 capture materials.Furthermore,the CO2/N2(V/V=15∶85)separation factor reaches 134,representing a 14.5％improvement compared to the unmodified MOF.This study aims to provide theo-retical support for the high adsorption performance of MAF stu-1(5％Cd)through its separation and regenera-tion performance fitting calculations using Ideal Adsorption Solution Theory and the Virial Equation.
万方数据
