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

Wooseok Nam, Jong Hyeok Park, Gui Young Han

Research output: Contribution to journalArticle

1 Citation (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 1

Fingerprint

Electric grounding
Thin films
Oxidation
Toluene
Formaldehyde
ITO glass
Electrons
Scavenging
Earth (planet)

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

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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.",
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Enhanced photocatalytic oxidation properties in Pt-TiO2 thin films by grounding. / Nam, Wooseok; Park, Jong Hyeok; Han, Gui Young.

In: Korean Journal of Chemical Engineering, Vol. 26, No. 2, 01.03.2009, p. 392-397.

Research output: Contribution to journalArticle

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AB - 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.

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