Gas-Phase Photocatalytic Oxidation of Benzene over Titanium Dioxide Modified by Silane Coupling Agent

Abstract

Abstract: The photocatalytic activity of TiO2 for the decomposition of gaseous benzene in a batch reactor can be greatly improved by modifying TiO2 with 3-(trimethoxysilyl)propylmethacrylate.The photocatalyst prepared was characterized by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy (XPS). The XPS spectrum shows that the binding energy of Ti 2p for the modified TiO2 shifted to a low value. The modified TiO2 has a photocatalytic activity 2.5 times that of pure TiO2.

Key words: titanium dioxide, silane coupling agent, modification, benzene, gas-phase photocatalytic oxidation

ZHONG Junbo, PI Zhan, LIN Tao, GONG Maochu, WANG Jianli, LIU Zhimin, CHEN Yaoqiang*. Gas-Phase Photocatalytic Oxidation of Benzene over Titanium Dioxide Modified by Silane Coupling Agent[J]. Chinese Journal of Catalysis, 2006, 27(12): 1045-1047.

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Gas-Phase Photocatalytic Oxidation of Benzene over Titanium Dioxide Modified by Silane Coupling Agent

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