Synthesis of V5+-doped Ag/AgCl photocatalysts with enhanced visible light photocatalytic activity

被引：3
|
作者：
Guo, Caiping [1 ,2 ]
Song, Limin [1 ,2 ]
Li, Yamiao [1 ,2 ]
Zhang, Shujuan [3 ]
机构：
[1] Tianjin Polytech Univ, Coll Environm & Chem Engn, Tianjin 300387, Peoples R China
[2] Tianjin Polytech Univ, State Key Lab Hollow Fiber Membrane Mat & Membran, Tianjin 300387, Peoples R China
[3] Tianjin Univ Sci & Technol, Coll Sci, Tianjin 300457, Peoples R China
来源：
APPLIED ORGANOMETALLIC CHEMISTRY | 2018年 / 32卷 / 04期
关键词：
enhanced mechanism; photocatalyst; V5+-doped Ag; AgCl; AG-AT-AGCL; PHOTO-CATALYTIC-ACTIVITY; PLASMONIC PHOTOCATALYST; NANOPARTICLES; DEGRADATION; EFFICIENT; IRRADIATION; NANOSTRUCTURES; HETEROJUNCTION; TETRACYCLINE;
D O I：
10.1002/aoc.4237
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
V5+-doped Ag/AgCl photocatalysts were prepared via the ion exchange method. The catalysts were characterized using X-ray diffractometry, transmission electron microscopy, and energy-dispersive X-ray, X-ray photoelectron, Fourier transform infrared and ultraviolet-visible spectroscopies. The V5+-doped Ag/AgCl photocatalysts show much higher photocatalytic activities than Ag/AgCl under visible light irradiation for methyl orange (MO) decomposition. Especially, the 2.0wt% V5+-doped Ag/AgCl photocatalyst shows the highest photocatalytic activity and also high stability after five cycles. The MO degradation rate during each cycle is almost maintained at 97%. Electron spin resonance spectroscopy and radical trapping experiments reveal that holes play an important role in the photocatalytic process.
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页数：9
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