文献类型：期刊文献

英文题名：Visible light activated sulfur and iron co-doped TiO2 photocatalyst for the photocatalytic degradation of phenol

作者：Niu, Yuxiao;Xing, Mingyang;Zhang, Jinlong[1];Tian, Baozhu

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2013

卷号：201

期号：1

起止页码：159

外文期刊名：CATALYSIS TODAY

收录：;EI(收录号：20125015803297);WOS:【SCI-EXPANDED(收录号:WOS:000311939200025)】；

基金：This work has been supported by National Nature Science Foundation of China (21007016 and 20977030), the Project of International Cooperation of the Ministry of Science and Technology of China (2011DFA50530), Science and Technology Commission of Shanghai Municipality (10520709900 and 10JC1403900) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Potassium persulfate; Codoping; Phenol degradation; Visible light photocatalysis

摘要：Fe-S codoped TiO2 photocatalysts were prepared by a sol-gel process and low-temperature solvothermal method. The obtained samples were characterized by XRD, UV-vis DRS, FT-IR, BET, EPR and XPS. Compared with undoped TiO2 and S doped TiO2 photocatalysts, the Fe-S codoped TiO2 photocatalysts exhibited much higher photocatalytic activity for phenol degradation under visible light irradiation. The optimal ratio of Fe/ Ti is 1.0 at%. It was revealed that the band gap of Fe-S codoped TiO2 was obviously decreased, extending the light response of TiO2 into visible light region, and sulfate ions were absorbed on the surface of the TiO2. The high visible light photocatalytic activity of TiO2 was assigned to the beneficial co-effects between S and Fe. The doped Fe(III) and SO42- anchored on TiO2 surface are favorable for the separation of photo-induced electrons and holes, suppressing the recombination of electrons and holes and consequently promoting the formation of hydroxyl radical. (C) 2012 Elsevier B. V. All rights reserved.