Article
Selenium-Modified TiO2 and Its Impact on Photocatalysis
Langmuir
Document Type
Article
Disciplines
Publication Version
Published Version
Publication Date
11-12-2010
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.
Copyright Owner
American Chemical Society
Copyright Date
2010
Language
en
File Format
application/pdf
Citation Information
Erin M. Rockafellow, Jessica M. Haywood, Travis Witte, Robert S. Houk, et al.. "Selenium-Modified TiO2 and Its Impact on Photocatalysis" Langmuir Vol. 26 Iss. 24 (2010) p. 19052 - 19059 Available at: http://works.bepress.com/william_jenks/20/
Reprinted (adapted) with permission from Langmuir, 26(24); 19052-19059. Doi: 10.1021/la1026569. Copyright 2010 American Chemical Society.