The adsorption capacity of CO2 on Cu/CAC was higher than that of the blank CAC, and compared with the
Cu/CAC, the adsorption capacity of CO2 of Cu/Ce/CAC with the mass ratio of Cu/Ce=30 was improved at 298 and 303 K. In addition, the
adsorption equilibrium data for CO2 at various temperatures was fitted to Langmuir, Freundlich and D-R isotherm models. It was found that
the D-R equation was the best model for fitting the adsorption data on Cu/Ce/CAC at different temperatures