REN Zhenxing1 ， LIU Junying2 ， WANG Mengliang1 ， LIU Diansheng1
（1. Institute of Applied Chemistry， Shanxi University， Taiyuan 030006， China； 2. Research Center for Combustion and Environment Technology， Shanghai Jiao Tong University， Shanghai 200240， China）
Abstract：A facile co-precipitation method followed by thermal treatment was used to prepare Bi2O3. The morphology, structure and photocatalytic activity of Bi2O3 were characterized by field-emission scanning electron microscopy, X-ray diffraction spectroscopy, UV-Vis absorption spectrophotometer and fluorescence spectrophotometer, respectively. The morphology and photocatalytic activity of Bi2O3 are relevant to the calcination temperature. Bi2O3 treated at 400 ℃ shows the best photocatalytic activity in the degradation of methyl orange (86%) . The excellent photocatalytic activity should be attributed to its good light adsorption and low recombination of photo-induced charge carries.
Keywords: Bi2O3; photocatalysis; methyl orange
文章编号：1008-5548（2017）04-0062-05
DOI：10.13732/j.issn.1008-5548.2017.04.013
收稿日期：2016-11-22，修回日期：2017-04-06，在线出版时间：2017-08-25。
基金项目：公益性行业（农业）项目，编号：201303011-7；山西省大田粮食作物生物配肥集成技术协同创新中心项目。
第一作者简介：任振兴（1981—），男，博士研究生，研究方向为光催化。E-mail：zxren@sxu.edu.cn。
通信作者简介：刘滇生（1953—），男，博士，教授，博士生导师，研究方向为光催化。E-mail：dsliu@sxu.edu.cn。
