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Enhanced Photoreduction Activity of Carbon Dioxide over Co3O4/CeO2 Catalysts under Visible Light Irradiation
Huang, Ying1,2; Yan, Chang-Feng1,2; Guo, Chang-Qing1; Huang, Shi-Lin1
2015
Source PublicationINTERNATIONAL JOURNAL OF PHOTOENERGY
AbstractA series of new two semiconductor catalysts, Co3O4/CeO2, were prepared by glycine-nitrate combustion method for photocatalytic reduction of carbon dioxide to produce methanol and ethanol under visible light (lambda > 400 nm) irradiation. The catalysts were characterized by BET, UV-vis spectra, XRD, SEM, PL, and XPS and the results indicated that the catalyst with 5 wt.% of Co3O4 has the highest yield among all kinds of tests with the methanol yield of 1.52 mu mol.g(-1).h(-1) and the ethanol yield of 4.75 mu mol.g(-1).h(-1), which are about 2.34 and 1.71 times as large as those of CeO2. However, methanol and ethanol can hardly be detected for Co3O4 under the same condition because of its too narrow band gap. The improvement of the photoreduction activity of Co3O4 doped CeO2 was caused by the separation of electron-hole pairs of Co3O4/CeO2 and charge transfer between Co3O4 and CeO2, mimicking the Z-scheme in photosynthesis.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1155/2015/230808
WOS Subject ExtendedChemistry ; Energy & Fuels ; Optics ; Physics
WOS KeywordPHOTOCATALYTIC HYDROGEN-PRODUCTION ; CO PREFERENTIAL OXIDATION ; COMPOSITE PHOTOCATALYSTS ; ORGANIC POLLUTANTS ; OXYGEN-EVOLUTION ; WATER OXIDATION ; GRAPHENE OXIDE ; DOPED TIO2 ; REDUCTION ; METHANOL
Indexed BySCI
Language英语
WOS SubjectChemistry, Physical ; Energy & Fuels ; Optics ; Physics, Atomic, Molecular & Chemical
WOS IDWOS:000355551400001
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10504
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Huang, Ying,Yan, Chang-Feng,Guo, Chang-Qing,et al. Enhanced Photoreduction Activity of Carbon Dioxide over Co3O4/CeO2 Catalysts under Visible Light Irradiation[J]. INTERNATIONAL JOURNAL OF PHOTOENERGY,2015.
APA Huang, Ying,Yan, Chang-Feng,Guo, Chang-Qing,&Huang, Shi-Lin.(2015).Enhanced Photoreduction Activity of Carbon Dioxide over Co3O4/CeO2 Catalysts under Visible Light Irradiation.INTERNATIONAL JOURNAL OF PHOTOENERGY.
MLA Huang, Ying,et al."Enhanced Photoreduction Activity of Carbon Dioxide over Co3O4/CeO2 Catalysts under Visible Light Irradiation".INTERNATIONAL JOURNAL OF PHOTOENERGY (2015).
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