Skip to main content
Article
Selenium-Modified TiO2 and Its Impact on Photocatalysis
Langmuir
  • Erin M. Rockafellow, Iowa State University
  • Jessica M. Haywood, Iowa State University
  • Travis Witte, Iowa State University
  • Robert S. Houk, Iowa State University
  • William S. Jenks, Iowa State University
Document Type
Article
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.
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
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/