Campus Units

Chemistry

Document Type

Article

Publication Version

Published Version

Publication Date

11-12-2010

Journal or Book Title

Langmuir

Volume

26

Issue

24

First Page

19052

Last Page

19059

DOI

10.1021/la1026569

Abstract

This work describes the preparation of a selenium-modified TiO2 photocatalyst and a preliminary evaluation of its photocatalytic activity. Se-TiO2 displayed greater visible absorption than undoped TiO2 and was still capable of degrading quinoline at a slightly faster rate than undoped TiO2 under UV light. Se-TiO2 was also able to degrade organic molecules under purely visible light by a single electron transfer pathway. Irradiation with >435 nm light showed no evidence of efficient production of HO•-like species. Se-TiO2 was also examined under hypoxic conditions, where the Se atoms were capable of trapping photogenerated electrons as evidenced by XPS.

Comments

Reprinted (adapted) with permission from Langmuir, 26(24); 19052-19059. Doi: 10.1021/la1026569. Copyright 2010 American Chemical Society.

Copyright Owner

American Chemical Society

Language

en

File Format

application/pdf

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