Enhanced photocatalytic oxidation properties in Pt-TiO2 thin films by grounding

Wooseok Nam, Jong Hyeok Park, Gui Young Han

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The rates of formaldehyde and toluene photocatalytic oxidation with different initial concentrations over a Pt-TiO2 film were analyzed at both the grounded and non-grounded states. The photocatalytic oxidation rates at the grounded states were faster than in the non-grounded states under similar reaction conditions. The enhanced photocatalytic oxidation rates in the grounded state were attributed to the effective splitting of the electron-hole pairs as a result of the scavenging of photoexcited electrons through the ITO (indium tin oxide) glass to earth. The pseudo first order model showed good agreement with the experimentally obtained heterogeneous photocatalytic oxidation rates of formaldehyde and toluene.

Original languageEnglish
Pages (from-to)392-397
Number of pages6
JournalKorean Journal of Chemical Engineering
Volume26
Issue number2
DOIs
Publication statusPublished - 2009 Mar

Bibliographical note

Funding Information:
This research was performed for the Hydrogen Energy R & D Center, one of the 21st Century Frontier R & D program, funded by the Ministry of Education, science and technology of Korea.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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