Catalysis Letters

, Volume 131, Issue 3–4, pp 381–387 | Cite as

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

  • Hsien-Chang Yang
  • Hsin-Yu LinEmail author
  • Yu-Shiang Chien
  • Jeffrey Chi-Sheng Wu
  • Hsin-Hsien Wu


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.


Titanium dioxide Mesoporous silica SBA-15 Carbon dioxide Photoreduction 



The authors would like to express thanks to the National Science Council, Taiwan, Republic of China (NSC 97-2221-E-259-016).

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
    Email author
  • 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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