Time-resolved infrared absorption study of nine TiO2 photocatalysts

Akira Yamakata, Taka aki Ishibashi, Hiroshi Onishi

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Electron kinetics of nine TiO2 catalysts were compared in a microsecond time domain. Each catalyst was band-gap excited with an UV light pulse, and electron-induced absorption of mid infrared light was observed as a function of time delay. The probability of electron-hole recombination in the bulk, electron attachment to adsorbed oxygen, and hole attachment to adsorbed methoxy species was estimated.

Original languageEnglish
Pages (from-to)133-137
Number of pages5
JournalChemical Physics
Volume339
Issue number1-3
DOIs
Publication statusPublished - Oct 15 2007
Externally publishedYes

Keywords

  • Charge transfer
  • Infrared absorption
  • Kinetics
  • Photocatalysis
  • Recombination
  • TiO

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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