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Highly active WO3 semiconductor photocatalyst prepared from amorphous peroxo-tungstic acid for the degradation of various organic compounds

Paper ID Volume ID Publish Year Pages File Format Full-Text
47427 46471 2010 8 PDF Available
Title
Highly active WO3 semiconductor photocatalyst prepared from amorphous peroxo-tungstic acid for the degradation of various organic compounds
Abstract

The photocatalytic activity and physical properties on WO3 photocatalysts prepared by various methods were investigated. WO3 photocatalyst (WO3(PA)) prepared from aged amorphous peroxo-tungstic acid showed the highest activity for hexane degradation, which was ∼6 times higher than that of commercial WO3, and exhibited a strong absorption in visible light region. WO3(PA) loaded with CuO as co-catalyst showed a high activity for the complete oxidation of various organic compounds into CO2, as compared with the activities of commercial or homemade WO3 catalysts and N-doped TiO2. The high activity of WO3(PA) was explained by high surface area, good crystallinity, and efficient light absorption in visible light region. The light absorption of WO3(PA) powder was probably improved because of a decrease in surface reflection at the smooth and porous surface of WO3(PA) and because of its increased light path length.

Keywords
WO3; Semiconductor; Photocatalyst; Degradation
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Highly active WO3 semiconductor photocatalyst prepared from amorphous peroxo-tungstic acid for the degradation of various organic compounds
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 94, Issues 1–2, 1 February 2010, Pages 150–157
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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Any Questions? feel free to contact us