Selenium-Modified TiO2 and Its Impact on PhotocatalysisLangmuir
Publication VersionPublished Version
AbstractThis 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 OwnerAmerican Chemical Society
Citation InformationErin 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/