文献类型：期刊文献

英文题名：Solar-driven photocatalytic removal of organic pollutants over direct Z-scheme coral-branch shape Bi2O3/SnO2 composites

作者：Chu, Liangliang[1,2]; Zhang, Jing[3]; Wu, Zisheng[1]; Wang, Chen[1]; Sun, Yuanyuan[1]; Dong, Shuying[1]; Sun, Jianhui[1]

第一作者：褚亮亮;Chu, Liangliang

通讯作者：Dong, Shuying

机构：[1] Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang, Henan, 453007, China; [2] Xinxiang University, Xinxiang, Henan, 453007, China; [3] Sanmenxia Polytechnic, Sanmenxia, Henan, 472000, China

第一机构：Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang, Henan, 453007, China

年份：2020

卷号：159

外文期刊名：Materials Characterization

收录：EI(收录号：20195007802553);Scopus(收录号：2-s2.0-85075923110)

语种：英文

外文关键词：Image enhancement - Water treatment - Photocatalytic activity - Photodegradation - Water pollution - Bismuth compounds - Efficiency - Organic pollutants - Heterojunctions

摘要：Here, we report a feasible strategy to construct a Z-scheme Bi2O3/SnO2 composite via a facile hydrothermal method. Photocatalytic activity of the as-prepared photocatalysts was evaluated through photocatalytic degradation of bisphenol A (BPA) under simulated sunlight irradiation. A photocatalytic efficiency of 93.42% was achieved by 1Bi2O3/SnO2 during 60 min of irradiation, which was 14.97- and 2.54-fold greater than the photocatalytic efficiency of pure SnO2 and Bi2O3, respectively. In addition, the composite was effective in the photocatalytic decomposition of several antibiotics. Degradation conditions, such as the catalyst dosage, the initial concentration, and pH of BPA aqueous solution, were also investigated. The enhanced photocatalytic degradation efficiency of Bi2O3/SnO2 composites was attributable to the increased absorption of light, as well as the effective separation of photo-induced carriers that resulted from the formation of a Z-scheme heterojunction. The main active species in photocatalytic degradation of BPA by Bi2O3/SnO2 composite were h+ and 1O2. This highly efficient and broad-spectrum photocatalyst renders it a promising candidate for water pollution control. ? 2019