期刊
APPLIED SURFACE SCIENCE
卷 353, 期 -, 页码 391-399出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.06.125
关键词
Ag; Ag3PO4; Plasma; Active carbon; Photodegradation; Tetracycline
类别
资金
- National Natural Science Foundation of China [21207053, 21407064]
- Natural Science Foundation of Jiangsu Province [BK20131259, BK20130489, BK20140532]
- Program for Postgraduate Research Innovation in University of Jiangsu Province [KYLX1028]
- Research Foundation of Jiangsu University, China [11JDG107]
Ag/Ag3PO4/active carbon (AC) composite photocatalysts were successfully synthesized using the simple deposition and photoinduced methods. The structures, morphology and photocatalytic properties of as-prepared photocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), diffuse reflectance spectroscopy (DRS), photoluminescence (PL) spectroscopy, X-ray photoelectron spectroscopy (XPS). The Ag/Ag3PO4/AC composite photocatalysts exhibited a conspicuously improved photocatalytic performance for tetracycline (TC) degradation. The optimal conditions of loaded dosage and photoinduced time were investigated, and the results showed that the photoinduced time played an important role in prepared processes, and also that for the loaded dosage of Ag3PO4. The DRS analysis showed that the composite photocatalysts exhibited strong absorption ability in the visible light range. The radicals trap experiments demonstrated that there were multiple active species during the degrading process of TC. The possible mechanism of improved photocatalytic activity of Ag-Ag3PO4/AC composite was also proposed. (C) 2015 Elsevier B.V. All rights reserved.
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