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

被引：12

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

页码：1625 / 1634

页数：10

共 66 条

[51] Influences of Gd Substitution on the Crystal Structure and Visible-Light-Driven Photocatalytic Performance of Bi2WO6 [J].

Tian, Na ;

Zhang, Yihe ;

Huang, Hongwei ;

He, Ying ;

Guo, Yuxi .

JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (29) :15640-15648

[52] DIOXYGEN-METAL COMPLEXES - TOWARD A UNIFIED VIEW [J].

VASKA, L .

ACCOUNTS OF CHEMICAL RESEARCH, 1976, 9 (05) :175-183

[53] Laser irradiation-induced α to δ phase transformation in Bi2O3 ceramics and nanowires [J].

Vila, M. ;

Diaz-Guerra, C. ;

Piqueras, J. .

APPLIED PHYSICS LETTERS, 2012, 101 (07)

[54] Oxygen vacancies on TiO2(110) and their interaction with H2O and O2:: A combined high-resolution STM and DFT study [J].

Wendt, S ;

Schaub, R ;

Matthiesen, J ;

Vestergaard, EK ;

Wahlström, E ;

Rasmussen, MD ;

Thostrup, P ;

Molina, LM ;

Lægsgaard, E ;

Stensgaard, I ;

Hammer, B ;

Besenbacher, F .

SURFACE SCIENCE, 2005, 598 (1-3) :226-245

[55] Hydrothermal synthesis, characterization of visible-light-driven α-Bi2O3 enhanced by Pr3+ doping [J].

Wu, Shuxing ;

Fang, Jianzhang ;

Xu, Weicheng ;

Cen, Chaoping .

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 2013, 88 (10) :1928-1833

[56] Microemulsion Synthesis, Characterization of Highly Visible Light Responsive Rare Earth-Doped Bi2O3 [J].

Wu, Shuxing ;

Fang, Jianzhang ;

Xu, Xiaoxin ;

Liu, Zhang ;

Zhu, Ximiao ;

Xu, Weicheng .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 2012, 88 (05) :1205-1210

[57] Facile large-scale synthesis of β-Bi2O3 nanospheres as a highly efficient photocatalyst for the degradation of acetaminophen under visible light irradiation [J].

Xiao, Xin ;

Hu, Ruiping ;

Liu, Chao ;

Xing, Chunlan ;

Qian, Cheng ;

Zuo, Xiaoxi ;

Nan, Junmin ;

Wang, Lishi .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2013, 140 :433-443

[58] One-pot solvothermal synthesis of three-dimensional (3D) BiOI/BiOCl composites with enhanced visible-light photocatalytic activities for the degradation of bisphenol-A [J].

Xiao, Xin ;

Hao, Rong ;

Liang, Min ;

Zuo, Xiaoxi ;

Nan, Junmin ;

Li, Laisheng ;

Zhang, Weide .

JOURNAL OF HAZARDOUS MATERIALS, 2012, 233 :122-130

[59] The synthesis, characterization and photocatalytic activity of V(V), Pb(II), Ag(I) and Co(II)-doped Bi2O3 [J].

Xie, Jimin ;

Lue, Xiaomeng ;

Chen, Min ;

Zhao, Ganqing ;

Song, Yuanzhi ;

Lu, Shuaishuai .

DYES AND PIGMENTS, 2008, 77 (01) :43-47

[60] Nitrogen-Doped Titanate-Anatase Core-Shell Nanobelts with Exposed {101} Anatase Facets and Enhanced Visible Light Photocatalytic Activity [J].

Xiong, Zhigang ;

Zhao, Xiu Song .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (13) :5754-5757

← 1 2 3 4 5 6 7 →