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, SY[1];Sun, JH[1]

机构：[1]Henan Normal Univ, Sch Environm, Key Lab Yellow River & Huai River Water Environm, Minist Educ,Henan Key Lab Environm Pollut Control, Xinxiang 453007, Henan, Peoples R China;[2]Xinxiang Univ, Xinxiang 453007, Henan, Peoples R China;[3]Sanmenxia Polytech, Sanmenxia 472000, Henan, Peoples R China

第一机构：Henan Normal Univ, Sch Environm, Key Lab Yellow River & Huai River Water Environm, Minist Educ,Henan Key Lab Environm Pollut Control, Xinxiang 453007, Henan, Peoples R China

通讯机构：[1]corresponding author), Henan Normal Univ, Sch Environm, Key Lab Yellow River & Huai River Water Environm, Minist Educ,Henan Key Lab Environm Pollut Control, Xinxiang 453007, Henan, Peoples R China.

年份：2020

卷号：159

外文期刊名：MATERIALS CHARACTERIZATION

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000509819000010)】；

基金：This work was supported by the NSFC (21677047, U1604137 and 51808199), the China Postdoctoral Science Foundation (2018M630825 and 2019T120624), Plan for University Scientific Innovation Talent of Henan Province (19HASTIT046), the Innovation Scientists and Technicians Troop Construction Projects of Henan Province, the Key Scientific Research Projects of Institutions of Higher Learning in Henan Province (18B530002). The authors also appreciate for the support from the Fund for Excellent Young Scholars (20180545) of Henan Normal University for the PhD.

语种：英文

外文关键词：Bismuth oxide; Stannic oxide; Z-scheme; Photocatalysis; Organic pollutant

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 1Bi(2)O(3)/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 O-1(2). This highly efficient and broad-spectrum photocatalyst renders it a promising candidate for water pollution control.