Photocatalytic reduction of CO2 in methanol to methyl formate over CuO-TiO2 composite catalysts.
Photocatalytic reduction of CO(2) on CuO-TiO(2) composite catalysts in the presence of methanol to prepare methyl formate had been investigated. Methanol was used as sacrificial reagent to react with the photo-generated holes in the valence band, and CO(2) was reduced by the electrons in the conduction band. CuO-TiO(2) was optimized for CuO loading, preparation method and calcination temperature. The catalyst of 1.0CuO-TiO(2), calcined at 450°C and CTAB as a dispersant showed the highest overall activity. The heterojunction between CuO and TiO(2) demonstrated with HRTEM played an important role in enhancing the photocatalytic activity.
School of Chemical Engineering and Technology, Tianjin University, Tianjin, China.
Shiyue
S
Qin
Feng
F
Xin
Yuande
Y
Liu
Xiaohong
X
Yin
Wei
W
Ma