期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 869, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.158679
关键词
Photocatalytic; RGO; Norfloxacin; Escherichia col; Ligand-metal charge transfer
资金
- Key-Area Research and Development Program of Guangdong Province [2019B020223002]
- Projects in the Field of International Scientific and Technological Cooperation of Guangdong province [2018A050506076]
- Guangdong Provincial Key Laboratory of Conservation and Precision Utilization of Characteristic Agricultural Resources in Mountainous Areas
This study prepared TiO2/Bi2WO6/rGO nanocomposite materials and found that they exhibit higher photocatalytic activity under visible light, making it a potential technology to address the threat of antibiotic overuse on water security.
Overuse of antibiotics threatens water security, and photocatalysis is a potential technology to alleviate this problem. In this study, the TiO2/Bi2WO6/rGO nanocomposite materials were prepared by a solvothermal process, and a series of characterizations were carefully examined. Then, the removal of norfloxacin from water under visible light irradiation was investigated to evaluate the photocatalytic activity of TiO2/Bi2WO6/rGO. The TiO2/Bi2WO6/rGO composite catalyst has higher photocatalytic activity than TiO2 and TiO2/Bi2WO6 under visible light, and the optimal addition content for rGO is 0.5%. After 60 min of visible light irradiation, the degradation rate of norfloxacin on TiO2/Bi2WO6/rGO-0.5% reached 87.79%. Furthermore, the UV-Vis of the complex suggests that the ligand-metal electron transfer mechanism enhances the catalytic activity of TiO2/Bi2WO6/rGO. Finally, the mechanism of photocatalytic degradation of norfloxacin by TiO2/Bi2WO6/rGO composite catalyst was proposed. (C) 2021 Published by Elsevier B.V.
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