文献类型：期刊文献

英文题名：Synergistic effect of Cu2O/TiO2 heterostructure nanoparticle and its high H2 evolution activity

作者：Xi, Zhenhao[1,2];Li, Changjiang[3];Zhang, Lu[1,2];Xing, Mingyang[1,2];Zhang, Jinlong[1,2]

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]Huangshan Univ, Dept Chem, Huangshan 245041, Peoples R China

年份：2014

卷号：39

期号：12

起止页码：6345

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20141417547837);WOS:【SCI-EXPANDED(收录号:WOS:000334899000006)】；

基金：This work has been supported by the National Nature Science Foundation of China (21173077, 21377038 and 21237003); the National Basic Research Program of China (973 Program, 2010CB732306, 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：Cu2O/TiO2; Cu2O/Cu/TiO2; Photocatalytic hydrogen evolution; Photocatalyst

摘要：Cu2O/TiO2 nanoparticles were prepared by solvothermal method, which formed the heterostructure of Cu2O/TiO2. Due to the heterostructure, the H-2 evolution rate under simulated solar irradiation was increasingly promoted. Meanwhile a certain amount of Cu particles which were confirmed by Transmission Electro Microscopy (TEM) and X-Ray Photoelectron Spectroscopy (XPS), formed on the surface of Cu2O/TiO2, and the photoactivity was accordingly further enhanced. The stabilized activity was maintained after many times irradiation. It is interesting that after a few hours irradiation the amount of Cu particles on the surface kept unchanged in the presence of Cu2O and TiO2. The Cu particles that formed during hydrogen generation reaction play a key role in the further enhancement of the hydrogen production activity. In this study, it is the first time to study the details on the formation of the stable ternary structure under simulated solar irradiation and their synergistic effect on the photoactivity of the water splitting. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.