文献类型：期刊文献

英文题名：A Heterojunction Cu2O/N-TiO2Photocatalyst for Highly Efficient Visible Light-Driven Hydrogen Production

作者：Liu, Xiang-Yu[1];Wei, Wen-Dong[1];Cui, Shi-Cong[1];Liu, Jin-Gang[1]

机构：[1]East China Univ Sci & Technol, Dept Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2016

卷号：146

期号：9

起止页码：1655

外文期刊名：CATALYSIS LETTERS

收录：;EI(收录号：20162702550025);WOS:【SCI-EXPANDED(收录号:WOS:000382011600004)】；

基金：This study was financially supported by the NSF of China (No. 21271072, 21571062 to JGL; 21571063 to SCC), the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning, and the Shanghai Pujiang Program (No. 13J1401900) to JGL.

语种：英文

外文关键词：N-Doped TiO2; Cuprous oxide; Proton reduction; Photocatalysis; Heterojunction

摘要：N-doped TiO2 effectively extends the light response range of TiO2 photocatalysts from the ultraviolet to the visible region; a p-n heterojunction would favor the separation of photogenerated electron-hole pairs, leading to high quantum efficiency, and consequently, enhanced photocatalysis. A Cu2O/N-TiO2 hybrid catalyst with p-n heterojunctions was newly prepared using a solvothermal and chemical reduction method. The hierarchical structure and valence state of copper of the Cu2O/N-TiO2 catalyst have been confirmed using X-ray diffraction, high resolution transmission electron microscopy, and X-ray photoelectron spectroscopy. The hybrid Cu2O/N-TiO2 catalyst demonstrated good photostability and excellent photocatalytic activity toward H-2 production, with a rate of 11 mu mol g(-1) h(-1) under visible light irradiation (> 400 nm) of a methanol aqueous solution. This offers an inexpensive and facile approach for potential efficient solar photon-driven H-2 production.