Exploring the structure of doped TiO₂ and its photocatalytic behaviour for the oxidation of gaseous acetaldehyde

Yijiao Jiang, Thomas Leoni, Jason Scott, Rose Amal

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Abstract

Bare titanium oxides (TiO₂) and TiO₂ doped with metal (Cu, Ag) or non-metal ions (F) were synthesised by a single-step flame spray pyrolysis (FSP) method. Among these doped TiO₂ materials, the fluorine-doped TiO₂ (F-TiO₂) has high surface acidity due to the interaction of fluorine ions with the terminal titanol (TiOH) groups evidenced by the ¹H MAS NMR spectra. The F-TiO₂ reveals a higher photocatalytic activity for the oxidation of acetaldehyde even surpassing Degussa P25 (commercial TiO₂). In contrast, the flame-made Cu-doped or Ag-doped TiO₂ has a detrimental effect on the photocatalytic oxidation of acetaldehyde.
Original languageEnglish
Title of host publicationChemeca 2011
Subtitle of host publicationEngineering a Better World : proceedings
Place of PublicationBarton, ACT
PublisherEngineers Australia
Pages1-4
Number of pages4
ISBN (Print)9780858259676
Publication statusPublished - 2011
Externally publishedYes
EventChemeca (39th : 2011) - Sydney, Australia
Duration: 18 Sep 201121 Sep 2011

Conference

ConferenceChemeca (39th : 2011)
CitySydney, Australia
Period18/09/1121/09/11

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