Tin disulfide based ternary composites for visible light driven photoelectrochemical water splitting |
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| Affiliation: | 1. Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502285, Telangana, India;2. Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, 502285, Telangana, India;1. School of Chemistry and Chemical Engineering, South China University of Technology; Guangdong Key Lab for Fuel Cell Technology, Guangzhou 510641, China;2. School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, Atlanta, GA 30332-0245, United States;1. State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum at Beijing, Changping, 100249, China;2. The University of Texas at Austin, Austin, TX, 78712, USA;1. State Key Laboratory of Silicon Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, PR China;2. College of Naval Architecture and Mechanical-electrical Engineering, Zhejiang Ocean University, Zhoushan, 316000, PR China;3. Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, MD, 20742, USA;4. Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, Hangzhou, 310013, PR China |
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| Abstract: | Photoelectrochemical (PEC) water splitting could potentially solve the global energy crisis and environmental pollution. In the present work, ternary composites consisting of 2D nanomaterials of SnS2, reduced graphene oxide (RGO), and mesoporous graphitic carbon nitride (mpg-C3N4) are synthesized with layered architecture. The photocurrent density of the ternary composite is 1.45 mA/cm 2 at 1.23 V vs RHE, which is over 23 times higher than that of pure SnS2. The superior photocatalytic activity of mpg-C3N4/SnS2/RGO composite is attributed to synchronous effects of all the materials leading to enhanced electron-hole pair separation, as well as increased visible-light absorption. |
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| Keywords: | Tin disulfide Photoanode Photoelectrochemical water splitting |
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