ZnO sheets prepared with a light-assisted growth method for improved photodegradation performance

作     者：Xuewen Wang Yuanquan Miao Wuyou Wang Gang Feng Rongbin Zhang 

作者机构：The Institute of Applied ChemistryDepartment of ChemistryNanchang University 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2016年第25卷第4期

页      面：636-640页

核心收录：

学科分类：0820[工学-石油与天然气工程] 083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0808[工学-电气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 0807[工学-动力工程及工程热物理] 0827[工学-核科学与技术] 0703[理学-化学] 

基　　金：support from the Institute of Metal Research,Chinese Academy of Sciences supported by the National Science Fund of China(51202105,21366020) the Natural Science Foundation of Jiangxi Province(20151BAB216006) the Science and Technology Project of Education Department of Jiangxi Province(GJJ14109) 

主　　题：ZnO sheets Light-assisted Photodegredation Transport distance 

摘      要：ZnO as a semiconductor photocatalyst is widely applied in the photodegradation of organic pollutants. Its photocatalytic activity is greatly decreased because of the recombination of photoexcited electrons and holes in the bulk. In this work, ZnO sheets are synthesized by adjusting the NaOH concentration under light irradiation at room temperature. Compared with ZnO particles, the ZnO sheets prepared with a light-assisted growth method exhibit a higher rate of photodegradation of methylene blue under UV visible light irradiation. The improved photodegradation rate is mainly attributed to the shortened transport distance of photoexcited electrons, the high surface area, and the surface atom structure modified by the light-assisted growth process. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.