Preparation of a visible sensitive carbon doped TiO2 photo-catalyst by grinding TiO2 with ethanol and heating treatment

In Cheol Kang, Qiwu Zhang, Shu Yin, Tsugio Sato, Fumio Saito

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104 Citations (Scopus)

Abstract

We have synthesized a carbon doped titanium oxide powder (C-TiO2) which is a photo-catalytic material acting under irradiation of light of wave length in visible region, by mechanochemical (MC) and heating operations. The MC operation is conducted by grinding TiO2 with ethanol (C2H5OH) in air, and the heating is carried out at different temperatures in air. The prepared samples were characterized by a series of analytical methods including X-ray diffraction, thermogravimetry-mass spectroscopy, Fourier transform infrared spectroscopy, specific surface area measurement, X-ray photoelectron spectroscopy (XPS), NOx gas decomposition and ultraviolet visible spectroscopy (UV-vis). XPS analysis particularly demonstrates the existence of C-Ti and C-O bindings, to which the improvement in photo-catalyst is attributed.

Original languageEnglish
Pages (from-to)81-87
Number of pages7
JournalApplied Catalysis B: Environmental
Volume80
Issue number1-2
DOIs
Publication statusPublished - 2008 Apr 15

Keywords

  • Carbon doping
  • Carbonate species
  • Grinding
  • Solid-liquid reaction
  • TiO photo-catalyst

ASJC Scopus subject areas

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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