Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane

Two different commercial photocatalysts, Degussa P25 and Hombikat UV 100, were used to degrade 1,4-dioxane photocatalytically in an annular slurry photoreactor. The optimum photocatalyst loading for Degussa P25 was found to be 1.5 g L-1 while for Hombikat UV 100 was between 3.0−4.0 g L-1. The photoa...

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Main Authors: M. Mehrvar, W. A. Anderson, M. Moo-Young
Format: Article
Language:English
Published: Wiley 2002-01-01
Series:International Journal of Photoenergy
Online Access:http://dx.doi.org/10.1155/S1110662X02000168
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author M. Mehrvar
W. A. Anderson
M. Moo-Young
author_facet M. Mehrvar
W. A. Anderson
M. Moo-Young
author_sort M. Mehrvar
collection DOAJ
description Two different commercial photocatalysts, Degussa P25 and Hombikat UV 100, were used to degrade 1,4-dioxane photocatalytically in an annular slurry photoreactor. The optimum photocatalyst loading for Degussa P25 was found to be 1.5 g L-1 while for Hombikat UV 100 was between 3.0−4.0 g L-1. The photoactivity of Degussa P25 is higher than that of Hombikat at lower photocatalyst loadings whereas it is lower at higher photocatalyst loadings. This was found both experimentally and also by mathematical modeling of the radiation within the photoreactor zone. The photoactivity of UV 100 titanium dioxide was found to be twice that of Degussa P25 at optimum loadings.
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spelling doaj-art-dd83fd4ce9da4cbfb00c4bfed1942f552025-02-03T01:22:21ZengWileyInternational Journal of Photoenergy1110-662X2002-01-014414114610.1155/S1110662X02000168Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxaneM. Mehrvar0W. A. Anderson1M. Moo-Young2Department of Chemistry, Biology and Chemical Engineering, Ryerson University, Ontario, Toronto M5B 2K3, CanadaDepartment of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, CanadaDepartment of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, CanadaTwo different commercial photocatalysts, Degussa P25 and Hombikat UV 100, were used to degrade 1,4-dioxane photocatalytically in an annular slurry photoreactor. The optimum photocatalyst loading for Degussa P25 was found to be 1.5 g L-1 while for Hombikat UV 100 was between 3.0−4.0 g L-1. The photoactivity of Degussa P25 is higher than that of Hombikat at lower photocatalyst loadings whereas it is lower at higher photocatalyst loadings. This was found both experimentally and also by mathematical modeling of the radiation within the photoreactor zone. The photoactivity of UV 100 titanium dioxide was found to be twice that of Degussa P25 at optimum loadings.http://dx.doi.org/10.1155/S1110662X02000168
spellingShingle M. Mehrvar
W. A. Anderson
M. Moo-Young
Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane
International Journal of Photoenergy
title Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane
title_full Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane
title_fullStr Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane
title_full_unstemmed Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane
title_short Comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1,4-dioxane
title_sort comparison of the photoactivities of two commercial titanium dioxide powders in the degradation of 1 4 dioxane
url http://dx.doi.org/10.1155/S1110662X02000168
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