Mesoporous TiO2/SBA-15, and Cu/TiO2/SBA-15 composite photocatalysts for photoreduction of CO2 to methanol
Journal
Catalysis Letters
Journal Volume
131
Journal Issue
3-4
Pages
381-387
Date Issued
2009
Author(s)
Yang, H.-C.
Lin, H.-Y.
Chien, Y.-S.
Wu, J.C.-S.
Wu, H.-H.
Yang, HC
Lin, HY
Chien, YS
Wu, JCS
Wu, HH
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 TiO 2. 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. © 2009 Springer Science+Business Media, LLC.
SDGs
Type
journal article