期刊
JOURNAL OF NATURAL GAS CHEMISTRY
卷 20, 期 2, 页码 145-150出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S1003-9953(10)60166-1
关键词
photocatalytic reduction; carbon dioxide; heterogeneous catalysts; SiC; Cu2O; nanoparticles
The Cu2O/SiC photocatalyst was obtained from SiC nanoparticles (NPs) modified by Cu2O. Their photocatalytic activities for reducing CO2 to CH3OH under visible light irradiation have been investigated. The results indicated that besides a small quantity of 6H-SiC, SiC NPs mainly consisted of 3C-SiC. The band gaps of SiC and Cu2O were estimated to be about 1.95 and 2.23 eV from UV-Vis spectra, respectively. The Cu2O modification can enhance the photocatalytic performance of SiC NPs, and the largest yields of meth tool on SiC, Cu2O and Cu2O/SiC photocatalysts under visible light irradiation were 153, 104 and 191 mu mol/g, respectively.
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