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

[1] Efficient BiVO4 Thin Film Photoanodes Modified with Cobalt Phosphate Catalyst and W-doping [J].

Abdi, Fatwa F. ;

Firet, Nienke ;

van de Krol, Roel .

CHEMCATCHEM, 2013, 5 (02) :490-496

[2] Removal of Orange II Dye in Water by Visible Light Assisted Photocatalytic Ozonation Using Bi2O3 and Au/Bi2O3 Nanorods [J].

Anandan, Sambandam ;

Lee, Gang-Juan ;

Chen, Pei-Kuan ;

Fan, Chihhao ;

Wu, Jerry J. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2010, 49 (20) :9729-9737

[3] Microstructure and charge carrier dynamics in Dy substituted phase stabilized cubic Bi2O3 [J].

Bandyopadhyay, Swagata ;

Dutta, Abhigyan .

RSC ADVANCES, 2015, 5 (80) :65123-65132

[4] Crystallite size and morphology of the phases in Au/TiO2 and Au/Ce-TiO2 catalysts [J].

Bokhimi, Xim ;

Zanella, Rodolfo .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (06) :2525-2532

[5] Grain size dependence of optical properties and positron annihilation parameters in Bi2O3 powder [J].

Chakrabarti, M ;

Dutta, S ;

Chattapadhyay, S ;

Sarkar, A ;

Sanyal, D ;

Chakrabarti, A .

NANOTECHNOLOGY, 2004, 15 (12) :1792-1796

[6] Enhanced visible-light-response photocatalytic degradation of methylene blue on Fe-loaded BiVO4 photocatalyst [J].

Chala, Sinaporn ;

Wetchakun, Khatcharin ;

Phanichphant, Sukon ;

Inceesungvorn, Burapat ;

Wetchakun, Natda .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 597 :129-135

[7] Formation and diffusion of oxygen-vacancy pairs on TiO2(110)-(1 x 1) [J].

Cui, Xuefeng ;

Wang, Bing ;

Wang, Zhuo ;

Huang, Tian ;

Zhao, Yan ;

Yang, Jinlong ;

Hou, J. G. .

JOURNAL OF CHEMICAL PHYSICS, 2008, 129 (04)

[8]

Dong L., 2015, J NANOMATER, V2015

[9]

Dong L. M., 2015, J NANOMATER, V2015

[10] Dual function of rare earth doped nano Bi2O3: white light emission and photocatalytic properties [J].

Dutta, Dimple P. ;

Roy, Mainak ;

Tyagi, A. K. .

DALTON TRANSACTIONS, 2012, 41 (34) :10238-10248

← 1 2 3 4 5 6 7 →