Catalysis Letters

, Volume 131, Issue 3–4, pp 381–387

Mesoporous TiO2/SBA-15, and Cu/TiO2/SBA-15 Composite Photocatalysts for Photoreduction of CO2 to Methanol

  • Hsien-Chang Yang
  • Hsin-Yu Lin
  • Yu-Shiang Chien
  • Jeffrey Chi-Sheng Wu
  • Hsin-Hsien Wu
Article

Abstract

A series of mesoporous TiO2/SBA-15, Cu/TiO2 and Cu/TiO2/SBA-15 composite photocatalysts were prepared by sol–gel synthesis for photoreduction of CO2 with H2O to methanol. It was found that optimum amount of titanium loading of TiO2/SBA-15 was 45 wt% which exhibited higher photoreduction activity than pure TiO2. An addition of copper on TiO2 or TiO2/SBA-15 catalyst as cocatalyst was found to enhance the catalytic activity because copper serves as an electron trapper and prohibits the recombination of hole and electron.

Keywords

Titanium dioxide Mesoporous silica SBA-15 Carbon dioxide Photoreduction 

Supplementary material

10562_2009_76_MOESM1_ESM.jpg (144 kb)
Supplementary material 1 (JPG 143 kb)
10562_2009_76_MOESM2_ESM.jpg (246 kb)
Supplementary material 2 (JPG 245 kb)

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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Hsien-Chang Yang
    • 1
  • Hsin-Yu Lin
    • 2
  • Yu-Shiang Chien
    • 2
  • Jeffrey Chi-Sheng Wu
    • 3
  • Hsin-Hsien Wu
    • 1
  1. 1.Energy and Environment Research LaboratoriesIndustrial Technology Research InstituteHsinchuTaiwan
  2. 2.Department of Materials Science and EngineeringNational Dong Hwa UniversityHualienTaiwan
  3. 3.Department of Chemical EngineeringNational Taiwan UniversityTaipeiTaiwan

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