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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
发表期刊INTERNATIONAL JOURNAL OF PHOTOENERGY
摘要A 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.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1155/2015/230808
研究领域[WOS]Chemistry ; Energy & Fuels ; Optics ; Physics
关键词[WOS]PHOTOCATALYTIC HYDROGEN-PRODUCTION ; CO PREFERENTIAL OXIDATION ; COMPOSITE PHOTOCATALYSTS ; ORGANIC POLLUTANTS ; OXYGEN-EVOLUTION ; WATER OXIDATION ; GRAPHENE OXIDE ; DOPED TIO2 ; REDUCTION ; METHANOL
收录类别SCI
语种英语
WOS类目Chemistry, Physical ; Energy & Fuels ; Optics ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000355551400001
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10504
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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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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