Photocatalytic visible-light active bismuth tungstate coatings deposited by reactive magnetron sputtering

被引：25
|
作者：
Ratova, M. [1 ]
West, G. T. [1 ]
Kelly, P. J. [1 ]
机构：
[1] Manchester Metropolitan Univ, Surface Engn Grp, Manchester M1 5GD, Lancs, England
来源：
VACUUM | 2015年 / 115卷
关键词：
Bismuth tungstate; Magnetron sputtering; Photocatalytic coatings; Visible light activity; Methylene blue; CONTROLLABLE SYNTHESIS; DECOMPOSITION; BI2WO6;
D O I：
10.1016/j.vacuum.2015.02.008
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Photocatalytic bismuth tungstate thin films with visible-light activity were deposited via reactive pulsed DC magnetron sputtering onto soda-lime glass substrates. Varying the power delivered to the bismuth and tungsten targets allowed control over the Bi/W ratio in the coatings, and therefore the structural and optical properties of the coatings. As-deposited coatings were characterised with amorphous microstructures and were annealed at 673 K to develop crystallinity. The visible light photocatalytic activity of the coatings, which was analysed using the methylene blue degradation test, was found to be superior to that of a commercial titania-based photocatalytic product. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：66 / 69
页数：4
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