Facile synthesis of CeO2/g-C3N4 nanocomposites with significantly improved visible-light photocatalytic activity for hydrogen evolution |
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| Affiliation: | 1. Engineering Research Center for Waste Oil Recovery Technology and Equipment, Chongqing Key Laboratory of Catalysis and New Environmental Materials, College of Environment and Resources, Chongqing Technology and Business University, Chongqing, 400067, China;2. Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, PR China;1. School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan 750021, People''s Republic of China;2. Key Laboratory of Chemical Engineering&Technology, North Minzu University, The State National Affair Commission of People''s Republic of China, Yinchuan 750021, People''s Republic of China;1. School of Materials Science and Engineering, Nanjing Institute of Technology, Jiangsu, PR China;2. Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, Jiangsu, PR China;3. School of Material Engineering, Jinling Institute of Technology, Nanjing 211169, China;1. Jiangsu Key Laboratory for Environment Functional Materials, Suzhou University of Science and Technology, Suzhou 215009, China;2. Department of Materials Science and Engineering, Rutgers-The State University of New Jersey, New Jersey 08854, USA;3. Engineering Research Center for Nanophotonics and Advanced Instrument, Ministry of Education, School of Physics and Materials Science, East China Normal University, Shanghai 200062, China;1. Department of Chemistry, VHNSN College (Autonomous), Virudhunagar 626 001, Tamil Nadu, India;2. Department of Chemical Engineering, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC |
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| Abstract: | Ceria dioxide supported on graphitic carbon nitride (CeO2/g-C3N4) composites were facilely synthesized to be application for photocatalytic hydrogen (H2) generation in this present work. The physical and chemical properties of CeO2/g-C3N4 nanocomposites were determined via a series of characterizations. The CeO2/g-C3N4 composites prepared by facile thermal annealing and rotation-evaporation method exhibit excellent photocatalytic H2 evolution with visible-light illumination. The best hydrogen generation rate of CeO2/g-C3N4 composite with 1.5 wt% Pt is 0.83 mmol h?1 g?1, which is almost same as that of composite with 3 wt% Pt prepared by simple physical mixing method. The significantly developed photocatalytic activity of CeO2/g-C3N4 composite is majorly ascribed to the stronger interfacial effects with the more visible-light absorbance and faster electron transfer. This work reveals that construction of the CeO2/g-C3N4 composite with high disperse and close knit by the facile thermal annealing and rotation-evaporation method could be an effective method to achieve excellent photocatalytic hydrogen evolution performance. |
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| Keywords: | Visible light irradiation |
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