Photocatalytic degradation using tungsten-modified TiO 2 and visible light: Kinetic and mechanistic effects using multiple catalyst doping strategies

Tungsten-modified titanium dioxide catalysts prepared from sol–gel methods and obtained commercially were compared for their photocatalytic activity using mechanistic probes designed to examine chemical pathways of oxidation. No special visible absorbance was noted for the sol–gel catalysts. However...

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Bibliographic Details
Published inJournal of photochemistry and photobiology. A, Chemistry. Vol. 207; no. 2; pp. 197 - 203
Main Authors Hathway, Timothy, Rockafellow, Erin M., Oh, Youn-Chul, Jenks, William S.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2009
Subjects
Photocatalysis
Titanium dioxide
Tungsten
Visible
Tungsten
Photocatalysis
Visible
Titanium dioxide
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Summary:Tungsten-modified titanium dioxide catalysts prepared from sol–gel methods and obtained commercially were compared for their photocatalytic activity using mechanistic probes designed to examine chemical pathways of oxidation. No special visible absorbance was noted for the sol–gel catalysts. However, an increase in the single-electron transfer chemistry with the presence of WO x was noted, and a distinct wavelength dependence on the product ratios.
ISSN:1010-6030
1873-2666
DOI:10.1016/j.jphotochem.2009.07.010