Visible Light-Sensitive ZnGe Oxynitride Catalysts for the Decomposition of Organic Pollutants in Water

被引：52

作者：

Huang, Jianhui ^{[1
,2
]}

Cui, Yanjuan ^{[2
]}

Wang, Xinchen ^{[1
]}

机构：

[1] Putian Univ, Environm & Life Sci Dept, Putian 351100, Peoples R China

[2] Fuzhou Univ, State Key Lab Breeding Base Photocatalysis, Res Inst Photocatalysis, Fuzhou 350002, Peoples R China

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2010年 / 44卷 / 09期

基金：

中国国家自然科学基金;

关键词：

PHOTOCATALYTIC ACTIVITY; SOLID-SOLUTION; TIO2; DEGRADATION; IRRADIATION; BENZENE; ZN2GEO4; DRIVEN; DYES;

D O I：

10.1021/es1001264

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A ZnGe oxynitride semiconductor was prepared by a solid-state reaction using GeO2 and ZnO under NH3 flow. The catalyst was used as a visible-light photocatalyst for the decomposition of organic compounds in polluted water. The physicochemical properties of the synthesized ZnGe oxynitride photocatalysts were characterized by several techniques, and aqueous photocatalytic activity was evaluated via the decomposition of model organic compounds including Rhodamine B, Methyl orange, Methylene blue, 4-chlorophenol, and salicylic acid. The results demonstrate that ZnGe oxynitride can photocatalytically oxidize organic pollutants in aqueous solution under visible light irradiation, suffering no obvious catalyst deactivation during reaction testing. The possible active species in the photocatalytic process are also discussed.

引用

页码：3500 / 3504

页数：5

共 31 条

[1] Highly enhanced photoreductive degradation of perchlorinated compounds on dye-sensitized metal/TiO2 under visible light [J].

Bae, E ;

Choi, W .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2003, 37 (01) :147-152

[2] A bicomponent TiO2/SnO2 particulate film for photocatalysis [J].

Cao, Y ;

Zhang, XT ;

Yang, WS ;

Du, H ;

Bai, YB ;

Li, TJ ;

Yao, JN .

CHEMISTRY OF MATERIALS, 2000, 12 (11) :3445-3448

[3] Photosensitized degradation of dyes in polyoxometalate solutions versus TiO2 dispersions under visible-light irradiation:: Mechanistic implications [J].

Chen, CC ;

Zhao, W ;

Lei, PX ;

Zhao, JC ;

Serponer, N .

CHEMISTRY-A EUROPEAN JOURNAL, 2004, 10 (08) :1956-1965

[4] The effect of postnitridation annealing on the surface property and photocatalytic performance of N-doped TiO2 under visible light irradiation [J].

Chen, Xiufang ;

Wang, Xinchen ;

Hou, Yidong ;

Huang, Jianhui ;

Wu, Ling ;

Fu, Xianzhi .

JOURNAL OF CATALYSIS, 2008, 255 (01) :59-67

[5] Optimization of hydroxyl radical formation using TiO2 as photocatalyst by response surface methodology [J].

Eremia, Sandra A. V. ;

Chevalier-Lucia, Dominique ;

Radu, Gabriel-Lucian ;

Marty, Jean-Louis .

TALANTA, 2008, 77 (02) :858-862

[6] Properties of O2•- and OH• formed in TiO2 aqueous suspensions by photocatalytic reaction and the influence of H2O2 and some ions [J].

Hirakawa, T ;

Nosaka, Y .

LANGMUIR, 2002, 18 (08) :3247-3254

[7] Oxidative decomposition of rhodamine B dye in the presence of VO2+ and/or Pt(IV) under visible light irradiation:: N-deethylation, chromophore cleavage, and mineralization [J].

Hu, Xuefeng ;

Mohamood, Tariq ;

Ma, Wanhong ;

Chen, Chuncheng ;

Zhao, Jincai .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (51) :26012-26018

[8] Degradation of benzene over a zinc germanate photocatalyst under ambient conditions [J].

Huang, Jianhui ;

Wang, Xinchen ;

Hou, Yidong ;

Chen, Xiufang ;

Wu, Ling ;

Fu, Xianzhi .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2008, 42 (19) :7387-7391

[9] Nanostructuring Cadmium Germanate Catalysts for Photocatalytic Oxidation of Benzene at Ambient Conditions [J].

Huang, Jianhui ;

Ding, Kaining ;

Wang, Xinchen ;

Fu, Xianzhi .

LANGMUIR, 2009, 25 (14) :8313-8319

[10] Synthesis and Photocatalytic Activity of Zn2GeO4 Nanorods for the Degradation of Organic Pollutants in Water [J].

Huang, Jianhui ;

Ding, Kaining ;

Hou, Yidong ;

Wang, Xinchen ;

Fu, Xianzhi .

CHEMSUSCHEM, 2008, 1 (12) :1011-1019

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