Series of ordered mesoporous carbons, OMCs, and mircoporous carbon, CFY, were synthesized using ordered mesoporous silica SBA-15 and NaY zeolite as hard template, respectively. N₂ adsorption tests showed that the synthesized mesoporous carbons possess abundant mesopores and centralized mesopore distribution. Methylene blue was used as probe molecule to investigate its adsorption behaviors on OMCs and CFY. Results showed that the mesopores of which the pore size is larger than 3.5 nm is crucial for the adsorption capacity and adsorption velocity of methylene blue. Theoretical studies showed that the adsorption kinetics of methylene blue on mesoporous carbons can be well depicted using pseudo-second-order kinetics model.

Key words: ordered mesoporous carbon, mircoporous carbon, N₂ adsorption, methylene blue, adsorption kinetics