Photoreduction of CO_2 to methanol over Bi_2S_3/CdS photocatalyst under visible light irradiation

作     者：Xin Li Juntao Chen Huiling Li Jingtian Li Yitao Xu Yingju Liu Jiarong Zhou 

作者机构：The Guangdong Provincial Laboratory of Green Chemical Technology School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 Guangdong China Institute of Biomaterial College of ScienceSouth China Agricultural University Guangzhou 510642 Guangdong China 

出 版 物：《Journal of Natural Gas Chemistry》 (天然气化学杂志（英文版）)

年 卷 期：2011年第20卷第4期

页      面：413-417页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 0807[工学-动力工程及工程热物理] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(No.20906034) the Key Academic Program of the 3rd Phase"211 Project" of South China Agricultural University(No.2009B010100001) China Postdoctoral Science Foundation(No.20080430820) 

主　　题：photocatalytic reduction carbon dioxide heterogeneous catalysts CdS Bi2S3 CO2 reduction 

摘      要：The Bi 2 S 3 , CdS and Bi 2 S 3 /CdS photocatalysts were prepared by direct reactions between their corresponding salt and thiourea in a hydrothermal autoclave. The photocatalytic activities of these photocatalysts for reducing CO 2 to CH 3 OH under visible light irradiation have been investigated. The results show that the photocatalytic activity and visible light response of Bi 2 S 3 are higher than those of CdS. The Bi 2 S 3 modification can enhance the photocatalytic activity and visible light response of CdS. The photocatalytic activity of Bi 2 S 3 /CdS hetero-junction photocatalyst was the highest and the highest yields of methanol was 613 μmol/g when the weight proportion of Bi 2 S 3 to CdS was 15%, which was about three times as large as that of CdS or two times of that of Bi 2 S 3 .