Photocatalytic Degradation with WO3/TiO2 Composites under UV and Visible Light

Masato Ezaki; Wataru Michida; Katsuki Kusakabe

doi:10.4028/www.scientific.net/AMM.625.293

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 625Photocatalytic Degradation with WO3/TiO2...

Photocatalytic Degradation with WO₃/TiO₂ Composites under UV and Visible Light

Abstract:

Tungsten trioxide and titania composites (WTs) were prepared by acid precipitation following sol-gel method. The photocatalytic activity of WT was evaluated by the photodegradation of methylene blue (MB) under UV and visible light irradiation. Effects of dispersion state in the WTs with different composition on the photocatalytic activity were investigated. Highly dispersed agglomerates consisting of monoclinic WO₃ and anatase TiO₂ nanoparticles were formed. As a result, the WO₃/TiO₂ photocatalyst with the atomic fraction, W/(W+Ti), of 0.5 showed the highest photocatalytic activity to the MB degradation under UV and visible light irradiation.

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Periodical:

Applied Mechanics and Materials (Volume 625)

Pages:

293-297

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.625.293

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Online since:

September 2014

Authors:

Masato Ezaki, Wataru Michida, Katsuki Kusakabe*

Keywords:

Adsorption, Photocatalyst, Titania, Tungsten Trioxide

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