Modified Titania in the Photo-Assisted Oxidation of Chloroform

Abstract:

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Degussa P-25 TiO2 powder was used as a catalyst in the photocatalytic oxidation of organics. With the objective of promoting a more effective electron-hole separation upon irradiation, the catalyst was modified with small amounts of platinum. Characterisation of the powders was done by X-Ray diffraction and SEM. Chloroform was used as a model molecule and its degradation followed using selective electrodes, with excellent results for the modified titania. Langmuir-Hinselwood kinetic was used to describe the heterogeneous oxidation of chloroform on TiO2, for low solute concentrations.

Info:

Periodical:

Materials Science Forum (Volumes 514-516)

Edited by:

Paula Maria Vilarinho

Pages:

1385-1390

DOI:

10.4028/www.scientific.net/MSF.514-516.1385

Citation:

R. Gouveia et al., "Modified Titania in the Photo-Assisted Oxidation of Chloroform", Materials Science Forum, Vols. 514-516, pp. 1385-1390, 2006

Online since:

May 2006

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Price:

$35.00

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