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The synthesis and characterization of highly visible-active TiO2-based photocatalyst

  • Xiangxin Yang
  • , Chundi Cao
  • , Keith Hohn
  • , Larry Erickson
  • , Ronaldo Maghirang
  • , Kenneth Klabunde

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The photocatalytic activity of carbon-doped TiO2 prepared by the sol-gel method was studied. The decomposition of acetaldehyde under visible light illumination showed that modified TiO2 catalyst had activity under visible irradiation of > 420 nm), eight times higher than that of commercial P25 TiO2. Elemental carbon was doped both on the surface and inside the bulk of TiO2. The elemental carbon acted as a photosensitizer. Under visible light irradiation, the excited photosensitizer injected the electron into the conduction band of TiO2 and then the electron was transferred to adsorbed O2, producing superoxide radical anion O2•- that participated in the oxidation of acetaldehyde. This is an abstract of a paper presented at the AIChE Annual Meeting (Salt Lake, UT 11/4-9/2007).

Original languageEnglish (US)
Title of host publication2007 AIChE Annual Meeting
StatePublished - 2007
Externally publishedYes
Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States
Duration: Nov 4 2007Nov 9 2007

Publication series

Name2007 AIChE Annual Meeting

Other

Other2007 AIChE Annual Meeting
Country/TerritoryUnited States
CitySalt Lake City, UT
Period11/4/0711/9/07

Keywords

  • Carbon
  • DRS
  • N adsorption-desorption
  • Photocatalyst
  • TiO
  • XPS
  • XRD

ASJC Scopus subject areas

  • Biotechnology
  • General Chemical Engineering
  • Bioengineering
  • Safety, Risk, Reliability and Quality

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