文献类型：期刊文献

英文题名：Preparation of Cu₂O/CeO₂ heterojunction photocatalyst for the degradation of Acid Orange 7 under visible light irradiation

作者：Hu, Shichao;Zhou, Feng;Wang, Lingzhi[1];Zhang, Jinlong

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：2011

卷号：12

期号：9

起止页码：794

外文期刊名：CATALYSIS COMMUNICATIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000289581300004)】；

基金：This work has been supported by National Nature Science Foundation of China (21007016, 20773039 and 20977030), National Basic Research Program of China (973 Program, 2007CB613301 and 2010CB732306), Science and Technology Commission of Shanghai Municipality (10520709900, 10JC1403900) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Cu2O; CeO2; Heterojunction; Photocatalyst

摘要：Cu2O/CeO2 heterojunction photocatalysts with different concentrations of Cu2O were prepared by a soak-reduction method using glucose as the reductant, and characterized by XRD, EDS, XPS and UV-vis DRS spectroscopy. The photocatalytic efficiency of the Cu2O/CeO2 composite was evaluated by degradation of Acid Orange 7 in water under visible light (lambda>420 nm) irradiation. The Cu2O/CeO2 composite showed stronger visible light absorption capacity and higher photocatalytic activity than pure CeO2. The sample with a Cu2O / CeO2 molar ratio of 0.029 presented the best photocatalytic activity, which was 20% higher than that of pure CeO2. (C) 2011 Elsevier B.V. All rights reserved.