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Photocatalytic oxidation of NOx by Pt-modified TiO2 under visible light irradiation

Paper ID Volume ID Publish Year Pages File Format Full-Text
28185 44063 2007 6 PDF Available
Title
Photocatalytic oxidation of NOx by Pt-modified TiO2 under visible light irradiation
Abstract

Photooxidation of NOx has been studied using titanium dioxide (Ishihara ST-01) treated with H2PtCl6. The experimental results indicate that Pt-modified TiO2 with different ligand structures can be synthesized according to the Pt treating procedure. TiO2 photocatalysts with certain Pt complexes produced significantly high photocatalytic activity under visible light irradiation without decreasing photoactivity under UV light irradiation. The visible-light-induced photocatalytic activity depended on the amount of Pt, but not greatly on the coordination number of Cl ions. It was suggested that the surface complex formation associated with Ti–O–Pt chemisorption dominated the visible light reactivity.

Keywords
TiO2; Photocatalyst; Visible light; NOx; Platinum
First Page Preview
Photocatalytic oxidation of NOx by Pt-modified TiO2 under visible light irradiation
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 188, Issue 1, 30 April 2007, Pages 106–111
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering