Photocatalytic oxidation of soot by P25 TiO(2) films

A. Mills, Jishun S. Wang, M. Crow

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


The photomineralisation of soot by P25 titania films is studied using FT-IR and the process shown to involve the oxidation of carbon to CO2 exclusively. The efficiency of this process is low, however, with a formal quantum efficiency of 1.1 × 10−4 molecules of carbon oxidized per incident photon of UVA light. The cause of this low efficiency is attributed largely to the less than intimate contact between the fibrous soot layer and the surface of the photocatalyst.
Original languageEnglish
Pages (from-to)1032-1035
Number of pages3
Issue number6
Publication statusPublished - Aug 2006


  • soot
  • photocatalysis
  • titania
  • carbon dioxide


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