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Efficient visible light induced degradation of organic contaminants by Bi2WO6 film on SiO2 modified reticular substrate

Paper ID Volume ID Publish Year Pages File Format Full-Text
47610 46478 2010 6 PDF Available
Title
Efficient visible light induced degradation of organic contaminants by Bi2WO6 film on SiO2 modified reticular substrate
Abstract

Bi2WO6 film has been successfully immobilized on reticular stainless steel substrate by a simple dip-coating method. The as-prepared film exhibited excellent photocatalytic activity induced by visible light (λ > 420 nm) in decomposing textile dye and toxic gas. It possesses notable advantages in gaseous contamination decomposition especially in static system due to its large specific surface area which makes the catalysts and contaminants sufficiently contacted with each other. The advantages of the SiO2 coating on the iron substrates were discussed. It effectively prevented the diffuseness of charge carriers from the substrate to the Bi2WO6, which resulted in the enhanced photocatalytic activity. Moreover, the stability of the photocatalytic film is also good which makes it potential for practical application.

Keywords
Bi2WO6 film; Photocatalysis; Visible light; High activity
First Page Preview
Efficient visible light induced degradation of organic contaminants by Bi2WO6 film on SiO2 modified reticular substrate
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 93, Issues 3–4, 12 January 2010, Pages 227–232
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis