Construction of heterostructured g-C3N4@TiATA/Pt composites for efficacious photocatalytic hydrogen evolution |
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| Affiliation: | 1. College of Chemistry and Chemical Engineering, Research Center of Gansu Military and Civilian Integration Advanced Structural Materials, Northwest Normal University, Lanzhou 730070, China;2. Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150025, China;1. Department of Electrical Engineering, Sanandaj Branch, Islamic Azad University, Sanandaj, Iran;2. Department of Electrical Engineering, University of Bonab, Bonab, Iran;1. Institute of Fiber Based New Energy Materials, The Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Ministry of Education, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China;2. College of Materials Science and Engineering, China Jiliang University, Hangzhou, 310018, PR China;1. Gansu International Scientific and Technological Cooperation Base of Water–Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China;2. Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan, Sichuan University of Science and Engineering, China;3. School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Chang’an University, Xi’an, 710054, China;1. Key Laboratory of Eco-Chemical Engineering, Taishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and Technology, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2. Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China |
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| Abstract: | Construction of heterostructured photocatalysts is a feasible method for improving hydrogen production from water splitting because of its good charge transport efficiency. Herein, we coupled the Ti-MOFs (TiATA) with metal-free graphitic carbon nitride (g-C3N4) to synthesize composites, g-C3N4@TiATA, in which a heterostructure was formed between g-C3N4 and TiATA. The establishment of heterojunctions not only broadens the light absorption range of g-C3N4@TiATA (490 nm) by contrast with g-C3N4 (456 nm), but also greatly accelerates charge migration. Photocatalytic studies present that the construction of heterostructure steering the charges flow from g-C3N4 to TiATA and then delivery to the cocatalyst of Pt nanoparticles, exhibiting an impressively photocatalytic hydrogen production rate (265.8 μmol·h?1) in assistance of 300 W Xenon lamp, which is about 3.4 times as much as g-C3N4/Pt. |
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| Keywords: | TiATA Heterostructure Photocatalysis Hydrogen production |
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