期刊
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
卷 49, 期 -, 页码 112-121出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2017.01.015
关键词
Ag3PO4 sub-microcrystals; Response surface methodology; Diclofenac; Photocatalysis; Mechanism
资金
- National Natural Science Foundation of China [51508254]
- Nature Science Foundation of Gansu Province of China [1506RJZA216]
- Fundamental Research Funds for the Central Universities [lzujbky-2015-137]
- Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure [SKL201509SIC]
- Open fund by Jiangsu Engineering Technology Research Center of Environmental Cleaning Materials [KFK1502]
- Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)
- Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lake, Chinese Academy of Sciences
In this study, high visible light response and charge separation efficiency of body-centered cubic Ag3PO4 sub-microcrystals were fabricated through ultrasound-precipitation process. Additionally, the parameters were optimized by photocatalytic (PC) removal degradation of diclofenac based on response surface methodology. Results indicated that the PC removal efficiency of diclofenac was significantly affected by Ag3PO4 content and pH value. Under the optimized conditions, 99.9% of diclofenac could be degraded within 16 min Xenon illumination. Furthermore, three PC removal degradation pathways of diclofenac were proposed, including OH-adduct to aromatic ring, direct oxidation by photoinduced holes and decarboxylation of side chain from the parent compound. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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