Enhanced photocatalytic activity and reaction mechanism of Ag-doped α-Bi2O3 nanosheets

被引：13
|
作者：
Shan, Lianwei [1 ]
Ding, Jun [1 ]
Sun, Wenli [1 ]
Han, Zhidong [1 ]
Jin, Liguo [1 ]
机构：
[1] Harbin Univ Sci & Technol, Coll Mat Sci & Engn, Harbin 150040, Heilongjiang, Peoples R China
来源：
INORGANIC AND NANO-METAL CHEMISTRY | 2017年 / 47卷 / 12期
关键词：
Bismuth oxide; nanosheet; photocatalytic activities; Ag doping; scavenger; BAND ALIGNMENT; DEGRADATION; BIVO4; HETEROJUNCTION; OXYGEN; BI2O3; WATER; HETEROSTRUCTURES; NANOCRYSTALS; PERFORMANCE;
D O I：
10.1080/24701556.2017.1357590
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The alpha-Bi2O3 and Ag-doped nanosheets were successfully prepared via a citric method. Based on the sodium oxalate scavenger, it was inferred that the hole plays a key role in the photooxidation process for silver-doped Bi2O3. Combined further with the IR analysis, it is found that the center dot O-2(-) has an effect on the decolorization of methylene blue (MB) under visible-light irradiation. The O-2/H2O2 electrode could contribute to the separation of electron-hole pairs due to the electrons flowing from CB to this electrode. As a result, the doped Ag species greatly affected the photocatalytic activities of Bi2O3 by the oxidative decolorization of MB.
引用
收藏
页码：1625 / 1634
页数：10
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