Enhanced Adsorption of Methyl Orange on Mesoporous TiO2-xCx Modified by CTAB

In this paper, the C-doped TiO2 was prepared by hydrothermal method with butyl titanate and glucose as the precursors. Then, C-doped TiO2 was further modified by CTAB during the above hydrothermal method. The synthesized samples were characterized by BET before and after the modification. The results show that the surface area of C-doped TiO2 became smaller after the modification (from 236 m(2)/g to 99.7 m(2)/g), but the adsorption amount for methyl orange was enhanced greatly after the modification. The biggest adsorption amount for methyl orange was up to 188.7 mg/g for modified TiO2-xCx in the methyl orange solution of 200 mg/L.