文献类型：期刊文献

英文题名：Enhanced photocatalytic performance of TiO2 based on synergistic effect of Ti3+ self-doping and slow light effect

作者：Qi, Dianyu[1,2];Lu, Liujia[1,2];Xi, Zhenhao[1,2];Wang, Lingzhi[1,2];Zhang, Jinlong[1,2,3]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China;[3]Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China

年份：2014

卷号：160

期号：1

起止页码：621

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20142817925074);WOS:【SCI-EXPANDED(收录号:WOS:000340687900068)】；

基金：This work has been supported by the National Natural Science Foundation of China (21173077, 21377038 and 21237003), the National Basic Research Program of China (973 Program, 2013CB632403), the Project of International Cooperation of the Ministry of Science and Technology of China (No. 2011DFA50530); Science and Technology Commission of Shanghai Municipality (12230705000, 12XD1402200), the Research Fund for the Doctoral Program of Higher Education (20120074130001) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：TiO2; Inverse opal, Ti3+; Oxygen vacancy; Slow light

摘要：A range of TiO2 inverse opals with tunable macroporous size were synthesized using different sized PS (polystyrene sphere) arrays as hard templates. After a simple heating treatment in vacuum, Ti3+ doped TiO2 inverse opals were obtained. The materials were characterized and verified by XRD, XPS, UV-vis DRS, EPR, and SEM. The result indicated that the optical responses of TiO2 and Ti3+ doped TiO2 inverse opals could be enhanced by choosing PS arrays with appropriate size as hard templates due to the slow light effect of inverse opal structure. The photocatalytic efficiency was evaluated by the photo degradation of AO7, and it is proved that the cooperation of slow light effect and Ti3+ doping is an effective way to improve visible-light driven photocatalytic performance of TiO2 photocatalyst. (C) 2014 Elsevier B.V. All rights reserved.