Photocatalytic reduction of carbon dioxide to methanol by Cu_2O/SiC nanocrystallite under visible light irradiation

查看全文 作　　者：Huiling [1]Li;Yonggen [1]Lei;Ying [1]Huang;Yueping [1]Fang;Yuehua [1]Xu;Li [1]Zhu;Xin [1,2]Li

机构地区：[1]Institute of Biomaterial, College of Science, South China Agricultural University, Guangzhou 510642, Guangdong, China;[2]The Guangdong Provincial Laboratory of Green Chemical Technology, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China

出　　处：《Journal of Natural Gas Chemistry》索引2011年第20卷第2期,共6页

基　　金：supported by the National Natural Science Foundation of China (Grant No. 20906034);the Key Academic Program of the 3rd Phase '211 Project' of South China Agricultural University (Grant No. 2009B010100001);China Postdoctoral Science Foundation (Grant No. 20080430820) 摘　　要：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 methanol on SiC, Cu2O and Cu2O/SiC photocatalysts under visible light irradiation were 153, 104 and 191μmol/g, respectively. 关键词：可见光照射二氧化碳光催化还原甲醇纳米晶碳化硅粒子氧化亚铜紫外可见光谱

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Photocatalytic reduction of carbon dioxide to methanol by Cu_2O/SiC nanocrystallite under visible light irradiation

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