The coating of conducting copolymer on coordination polymer nanorod: A visible light active p-n heterojunction photocatalyst for H2 production |
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| Institution: | 1. Zhejiang A & F University, Lin''an, Zhejiang Province, 311300, PR China;2. School of Statistics and Management, Shanghai University of Finance and Economics, Shanghai, 200433, PR China;3. Key Laboratory of Chemical Utilization of Forestry Biomass of Zhejiang Province Zhejiang A & F University, Lin''an, Zhejiang Province, 311300, PR China;4. Department of Chemistry, Liaocheng University, Liaocheng 252059, PR China;1. College of Chemical and Material Engineering, Henan University of Urban Construction, Henan 467036, PR China;2. College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450052, Henan, PR China;1. School of Science, State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, PR China;2. School of Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China;3. Department of Chemistry, Abdul Wali Khan University, Mardan, K.P.K, Pakistan;1. Department of Science Education, Jeonju University, Jeonju 560-759, Republic of Korea;2. Department of Carbon Fusion Engineering, Jeonju University, Jeonju 560-759, Republic of Korea;1. Department of Materials Science, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan;2. Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, Taiwan;3. Department of Quantum Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan;4. Institute of Nuclear Energy Research, Atomic Energy Council, 1000 Wenhua Rd., Chiaan Village, Lungtan, Taoyuan 32546, Taiwan;5. Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;6. World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan |
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| Abstract: | A visible light active p-n heterojunction photocatalyst was synthesized successfully through in-situ chemical oxidation copolymerization of aniline (ANI) and diphenylamine-4-sulfonate (DPAS) with the existence of coordination polymer nanorod (CPNR) under initiation of ammonium persulfate (APS). Compared with neat coordination polymer nanorod, the resulted p-n heterojunction photocatalyst exhibits higher H2 generationrate under visible light irradiation. In this heterojunction photocatalyst, as a p-type semiconductor possessing suitable energy levels with coordination polymer nanorod, poly-(aniline-co-N-(4-sulfophenyl)-aniline) (PAPSA) forms p-n heterojunction with n-type coordination polymer nanorod, the inner electric field of p-n heterojunction accelerates the separation of electrons and holes, which enhances H2 production performance. Furthermore, the influence of concentration ratio between DPAS and ANI on photocatalytic property of the p-n heterojunction photocatalyst was discussed and a reasonable condition to fabricate photocatalyst with high H2 generationrate had been obtained. During photocatalytic water splitting H2 generation, the p-n heterojunction photocatalyst exhibited outstanding stability. |
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| Keywords: | Coordination polymer nanoparticle Conductive copolymer p-n heterojunction photocatalyst Photocatalytic water splitting |
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