In situ anion-exchange synthesis and photocatalytic activity of AgBr/Ag2O heterostructure

被引：30

作者：

Cao, Yuhui ^{[1
]}

Li, Qiuye ^{[1
]}

Xing, Yangyang ^{[1
]}

Zong, Lanlan ^{[1
]}

Yang, Jianjun ^{[1
]}

机构：

[1] Henan Univ, Key Lab Special Funct Mat, Kaifeng 475004, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2015年 / 341卷

基金：

中国国家自然科学基金;

关键词：

AgBr; Ag2O; Heterostructure; Photocatalytic; Methyl orange; Visible light; EFFICIENT PHOTODEGRADATION; ROOM-TEMPERATURE; GROWTH; NANOPARTICLES; ENHANCEMENT; DEGRADATION; FABRICATION; COMPOSITES; STABILITY; AGBR/TIO2;

D O I：

10.1016/j.apsusc.2015.02.174

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

AgBr/Ag2O heterostructure photocatalysts were synthesized by a simple in situ anion-exchange route. The ratio of AgBr and Ag2O in the composites could be easily controlled by adjusting the concentration of NaBr solution. The AgBr/Ag2O-5 heterostructure exhibited a much higher photocatalytic activity than the pure AgBr and Ag2O particles in photodegradation of methyl orange (MO) under visible light irradiation. On the basis of the characterization by X-ray diffraction, photoluminescence (XRD), X-ray photoelectron spectroscope (XPS), and UV-vis diffuse reflectance spectra (DRS), a mechanism was proposed to account for the enhanced photocatalytic activity of AgBr/Ag2O heterostructure. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：190 / 195

页数：6

共 38 条

[1] Controlled Orientation in a Bio-Inspired Assembly of Ag/AgCl/ZnO Nanostructures Enables Enhancement in Visible-Light-Induced Photocatalytic Performance [J].

Begum, Gousia ;

Manna, Joydeb ;

Rana, Rohit Kumar .

CHEMISTRY-A EUROPEAN JOURNAL, 2012, 18 (22) :6847-6853

[2] One-dimensional steeplechase for electrons realized [J].

Björk, MT ;

Ohlsson, BJ ;

Sass, T ;

Persson, AI ;

Thelander, C ;

Magnusson, MH ;

Deppert, K ;

Wallenberg, LR ;

Samuelson, L .

NANO LETTERS, 2002, 2 (02) :87-89

[3] Synthesis and characterization of high photocatalytic activity and stable Ag3PO4/TiO2 fibers for photocatalytic degradation of black liquor [J].

Cai, Li ;

Long, Qiyi ;

Yin, Chao .

APPLIED SURFACE SCIENCE, 2014, 319 :60-67

[4] Templating Synthesis of SnO2 Nanotubes Loaded with Ag2O Nanoparticles and Their Enhanced Gas Sensing Properties [J].

Chen, Xing ;

Guo, Zheng ;

Xu, Wei-Hong ;

Yao, Hong-Bin ;

Li, Min-Qiang ;

Liu, Jin-Huai ;

Huang, Xing-Jiu ;

Yu, Shu-Hong .

ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (11) :2049-2056

[5] Growth of Photocatalytic CdSe-Pt Nanorods and Nanonets [J].

Elmalem, Einat ;

Saunders, Aaron E. ;

Costi, Ronny ;

Salant, Asaf ;

Banin, Uri .

ADVANCED MATERIALS, 2008, 20 (22) :4312-4317

[6] HETEROGENEOUS PHOTOCATALYSIS [J].

FOX, MA ;

DULAY, MT .

CHEMICAL REVIEWS, 1993, 93 (01) :341-357

[7] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[8] Controlled growth of Si nanowire arrays for device integration [J].

Hochbaum, AI ;

Fan, R ;

He, RR ;

Yang, PD .

NANO LETTERS, 2005, 5 (03) :457-460

[9] Visible-light-induced photocatalytic degradation of azodyes in aqueous AgI/TiO2 dispersion [J].

Hu, Chun ;

Hu, Xuexiang ;

Wang, Liusuo ;

Qu, Jiuhui ;

Wang, Aimin .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2006, 40 (24) :7903-7907

[10] Structural rearrangement of mesostructured silica nanoparticles incorporated with ZnO catalyst and its photoactivity: Effect of alkaline aqueous electrolyte concentration [J].

Jusoh, N. W. C. ;

Jalil, A. A. ;

Triwahyono, S. ;

Karim, A. H. ;

Salleh, N. F. ;

Annuar, N. H. R. ;

Jaafar, N. F. ;

Firmansyah, M. L. ;

Mukti, R. R. ;

Ali, M. W. .

APPLIED SURFACE SCIENCE, 2015, 330 :10-19

← 1 2 3 4 →