WO3/TiO2 Nanotubes with Strongly Enhanced Photocatalytic Activity

被引:102
作者
Paramasivam, Indhumati [1 ]
Nah, Yoon-Chae [1 ]
Das, Chittaranjan [1 ]
Shrestha, Nabeen K. [1 ]
Schmuki, Patrik [1 ]
机构
[1] Univ Erlangen Nurnberg, Dept Mat Sci WW 4, Inst Corros & Surface Sci LKO, D-91058 Erlangen, Germany
关键词
electrochemistry; nanostructures; photocatalysis; titanium; tungsten; ORGANIZED TIO2 NANOTUBES; SEMICONDUCTOR PARTICLES; TITANIUM-DIOXIDE; OXIDE; PHOTODEGRADATION; LAYERS; OXIDATION; PHOTOREDUCTION; 4-NITROPHENOL; DEGRADATION;
D O I
10.1002/chem.201000397
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Mixed oxide photocatalysts: WO3- containing TiO2 nanotubes were prepared by self-organizing electrochemical anodization of TiW alloys (Ti0.2 W see figure, and Ti9W). It is shown that a content of only 0.2 at % WO3 with respect to the titania nanotubes leads to a very significant increase of the photocatalytic reaction rate compared not only to pure anatase TiO2 nanotubes, but also in comparison with any other modified TiO2 nanotube system reported up to now. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:8993 / 8997
页数:5
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