文献类型：期刊文献

英文题名：Doping induced enhanced photocatalytic performance of SnO2:Bi3+ quantum dots toward organic pollutants

作者：Chu, Liangliang[1,2]; Duo, Fangfang[2]; Zhang, Mingliang[2]; Wu, Zisheng[1]; Sun, Yuanyuan[1]; Wang, Chen[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] School of Environment, Henan Normal University, Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, Xinxiang, Henan, 453007, China; [2] Xinxiang University, Xinxiang, Henan, 453007, China

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

年份：2020

卷号：589

外文期刊名：Colloids and Surfaces A: Physicochemical and Engineering Aspects

收录：EI(收录号：20200207999253);Scopus(收录号：2-s2.0-85077504357)

语种：英文

外文关键词：Tin oxides - Bismuth compounds - Wastewater treatment - Organic pollutants - Escherichia coli - Image enhancement - Photocatalytic activity - Nanocomposites - Efficiency - Nanocrystals - Rhodium compounds

摘要：Bismuth (Bi)-doped tin oxide (SnO2) quantum dots were synthesized via a one-step hydrothermal method. The as-prepared samples were characterized with various techniques. Photocatalytic activity of the as-synthesized photocatalysts were evaluated through photocatalytic degradation of Rhodamine B (RhB) and Ciprofloxacin hydrochloride (CIP) solution under simulated sunlight irradiation. Results showed that the Bi-doped SnO2 quantum dots had enhanced photocatalytic performance than the pure counterpart, where the photocatalytic efficiencies of 5Bi- SnO2 toward RhB and CIP were ca. 1.75 and 1.53-fold higher than that of pure SnO2 (56.02 % and 58.11 %). The outstanding photodegradation efficiency of the obtained composites were due to enhanced absorbance of light as well as the effective separation and migration of photo-generated carriers. The mineralization rate of CIP reached 57.40 % after 90 min photocatalytic decomposition with 5Bi-SnO2. Meanwhile, the antibacterial activity of CIP toward Escherichia coli DH5a had been largely eliminated after 5Bi-SnO2 treatment. This work may increase the feasibility of purifying the environmental wastewater with a high efficiency and stable photocatalyst. ? 2020 Elsevier B.V.