The effect of combined processes for advanced oxidation of organic dye using CVD TiO 2 film photo-catalysts

H. Lee, S. H. Park, S. J. Kim, B. H. Kim, H. S. Yoon, J. S. Kim, S. C. Jung

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The preparation of TiO 2 photo-catalyst films on alumina balls via low pressure metal organic chemical vapor deposition using titanium tetraisopropoxide and their photo-catalytic activity in bromothymol blue (BTB) decomposition using a microwave/UV/TiO 2 photo-catalyst combined process system were investigated. The results indicate that the film structure strongly depended on the reaction temperature. Among the grown TiO 2 films, anatase and rutile showed high photo-catalytic activities, whereas amorphous TiO 2 films showed lower activities. The BTB decomposition rate increased with the microwave intensity and ozone injection rate. A significant synergistic effect was observed when hydrogen peroxide addition was combined with other elemental techniques.

Original languageEnglish
Pages (from-to)758-763
Number of pages6
JournalProgress in Organic Coatings
Volume74
Issue number4
DOIs
StatePublished - Aug 2012

Keywords

  • CVD
  • Microwave
  • Ozone
  • Photo-catalysts
  • UV

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