Structure and Photocatalytic Properties of TiO sub(2)-WO sub(3) Composites Prepared by Electrophoretic Deposition

In this work TiO sub(2)-WO sub(3) composite films containing different oxide concentrations were prepared by electrophoretic deposition on steel substrates. Composite coating structures were analyzed by X -ray diffraction, Raman spectra and scanning electron microscopy. The results showed an even di...

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Published inIOP conference series. Materials Science and Engineering Vol. 77
Main Authors Liepina, Ineta, Bajars, Gunars, Rublans, Marcis, Kleperis, Janis, Lusis, Andrejs, Pentjuss, Evalds
Format Journal Article
LanguageEnglish
Published 01.01.2015
Subjects
Deposition
Electrophoretic deposition
Oxides
Particulate composites
Photocatalysis
Structural steels
Titanium dioxide
Tungsten oxides
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Summary:In this work TiO sub(2)-WO sub(3) composite films containing different oxide concentrations were prepared by electrophoretic deposition on steel substrates. Composite coating structures were analyzed by X -ray diffraction, Raman spectra and scanning electron microscopy. The results showed an even distribution of WO sub(3) particles in the entire composite layer. Light absorption measurements were used for photocatalytic properties evaluation. It was found that the removal ratio of methylene blue depends on the (TiO sub(2)):(WO sub(3)) concentration ratio. The most effective photodegradation was determined for the sample that was electrophoretically deposited from the suspension with the molar content ratio n(TiO sub(2)):n(WO sub(3)) 2:1.
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ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/77/1/012039