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Enhanced Photoelectrocatalytic Activity of TiO2 Nanowire Arrays via Copolymerized G-C3N4 Hybridization. ENERGIES 2022. [DOI: 10.3390/en15124180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Photoelectrocatalytic (PEC) oxidation is an advanced technology that combines photocatalytic oxidation (PC) and electrolytic oxidation (EC). PEC activity can be greatly enhanced by the PC and EC synergy effect. In this work, novel copolymerized g-C3N4 (denoted as CNx)/TiO2 core-shell nanowire arrays were prepared by chemical vapor deposition. CNx were deposited on the surface of TiO2 nanowire arrays using organic monomer 4,5-dicyanidazole and dicyandiamide as copolymerization precursor. TiO2 nanowire arrays provide a direct and fast electron transfer path, while CNx is a visible light responsive material. After CNx deposition, the light response range of TiO2 is broadened to 600 nm. The deposition of CNx shell effectively improves the PC efficiency and PEC efficiency of TiO2. Under visible light irradiation and 1 V bias potential, the rate constant k of PEC degradation of CNx/TiO2 core-shell nanowire arrays is 0.0069 min−1, which is 72% higher than that of pure TiO2 nanowires. The built-in electric field formed in the interface between TiO2 core and CNx shell would effectively promote photogenerated charge separation and PEC activity.
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Pan A, Qinghui Z, Zhuang Y, Jiaxing W, Jiaying Z, Yajun W, Yuming L, Guiyuan J. Research Progress of Solar Hydrogen Production Technology under Double Carbon Target. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a22080362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Wang Y, Liu L, Zhang J, Zhang W, Yao W, Jiang G. NiFe‐layered Double Hydroxide/Vertical Bi
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Nanoplate Arrays with Oriented {001} Facets Supported on ITO Glass: Improved Photoelectrocatalytic Activity and Mechanism Insight. ChemCatChem 2021. [DOI: 10.1002/cctc.202100166] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yajun Wang
- State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading China University of Petroleum, Beijing Beijing 102249 P. R. China
| | - Liming Liu
- State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading China University of Petroleum, Beijing Beijing 102249 P. R. China
| | - Jiaying Zhang
- State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading China University of Petroleum, Beijing Beijing 102249 P. R. China
| | - Wencan Zhang
- State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading China University of Petroleum, Beijing Beijing 102249 P. R. China
| | - Wenqing Yao
- Department of Chemistry Tsinghua University Beijing 100084 P. R. China
| | - Guiyuan Jiang
- State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading China University of Petroleum, Beijing Beijing 102249 P. R. China
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Subramanian A, Mahadik MA, Park JW, Jeong IK, Chung HS, Lee HH, Choi SH, Chae WS, Jang JS. An effective strategy to promote hematite photoanode at low voltage bias via Zr4+/Al3+ codoping and CoOx OER co-catalyst. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.06.149] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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