文献类型：期刊文献

英文题名：Surface modification of TiO₂ nanoparticles with a C₆₀ derivative and enhanced photocatalytic activity for the reduction of aqueous Cr(VI) ions

作者：Mu, Shuai[1];Long, Yingzhao[1];Kang, Shi-Zhao[2];Mu, Jin[1]

机构：[1]E China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China;[2]Shanghai Inst Technol, Dept Chem Engn, Shanghai 200233, Peoples R China

年份：2010

卷号：11

期号：8

起止页码：741

外文期刊名：CATALYSIS COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000276785000014)】；

基金：This research was financially supported by National High Technology Research and Development Program of China (No. 2009AA05Z101).

语种：英文

外文关键词：TiO2 nanoparricles; C-60; Surface modification; Cr(VI) photocatalytic reduction

摘要：The surface of TiO2 nanoparticles (Degussa P25) was modified with a C-60 derivative, C-60(CHCOOH)(2). In comparison to the pure P25, the modified TiO2 nanoparticles displays a higher photocatalytic activity with 97% of photocatalytic reduction efficiency of Cr(VI) ions after 1.5 h UV irradiation. In order to investigate the effect of the C-60 derivative on the photocatalytic activity of the TiO2 nanoparticles, diffuse reflectance UV-vis spectra and photoluminescence spectra were measured. The results indicated that the enhanced photocatalytic activity of TiO2 nanoparticles may be ascribed to the enhancement of the photogenerated electron-hole separation because of the modification of the C-60 derivative. (C) 2010 Elsevier B.V. All rights reserved.