Influence of the form of photodeposited platinum on titania upon its photocatalytic activity in CO and acetone oxidation

Alexander V. Vorontsov, Evgueni N. Savinov, Jin Zhensheng

Research output: Contribution to journalArticlepeer-review

139 Scopus citations

Abstract

Specimens of titania with platinum in various oxidation states deposited by a photocatalytic method, as well as mixture of PtO2 + TiO2, and PtO2 have been studied by means of XPS, TEM and UV-VIS diffuse reflectance spectroscopy. Activities of the specimens in thermal and photocatalytic complete oxidation of gaseous acetone and CO by atmospheric oxygen at 40°C have been evaluated using a flow-circulating reactor. Photocatalytic activity increases with lowering of Pt oxidation state. Possible reasons of this behavior are discussed.

Original languageEnglish
Pages (from-to)113-117
Number of pages5
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume125
Issue number1-3
DOIs
StatePublished - Aug 1999
Externally publishedYes

Keywords

  • Photocatalytic oxidation
  • Photodeposition
  • Platinized titanium dioxide

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