Photocatalytic effects of plasma-heated TiO2-x particles under visible light irradiation

Yoon Keun Chae, Jin Won Park, Shinsuke Mori, Masaaki Suzuki

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Abstract

The photocatalytic characteristics of partially reduced TiO2 (TiO2-x) by plasma treatment and plasma-heated treatment were investigated in the visible-light region. For the visible-light photocatalytic activity of TiO2-x, plasmaheated treatment shows stronger than plasma treatment significantly. The TiO2-x by plasma-heated treatment shows broader red-shifted absorption bands than one by plasma treatment in the visible-light region. The surface color of TiO2-x by plasma treatment and plasma-heated treatment changed from white to sky blue, and to navy, respectively. After exposure to air, the surface color of TiO2-x changed from sky blue to white for plasma treatment and from navy to beige for plasma-heated treatment.

Original languageEnglish
Pages (from-to)62-66
Number of pages5
JournalKorean Journal of Chemical Engineering
Volume30
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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