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In‐situ Copper Doping with ZnO/ZnS Heterostructures to Promote Interfacial Photocatalysis of Microsized Particles
Author(s) -
Zeng Wei,
Ren Yuanfu,
Zheng Yuying,
Pan Anqiang,
Zhu Ting
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202001407
Subject(s) - heterojunction , photocatalysis , materials science , copper , doping , chemical engineering , catalysis , nanotechnology , in situ , hydrogen production , morphology (biology) , optoelectronics , metallurgy , chemistry , organic chemistry , biology , engineering , genetics
Abstract Copper‐doped ZnS/ZnO (CSO) hexahedrons in egg tart‐like morphology were fabricated by an in‐situ synthetic strategy to promote photocatalytic hydrogen (H 2 ) production. Hexahedral CuO/ZnO precursors in micro sizes were prepared by a solvothermal method. A subsequent moderate sulfurization of the precursor led to the formation of ZnS/ZnO heterostructures without alteration of the hexahedral morphology. In addition, the in‐situ methodology ensured the homogeneous doping of copper species with ZnS/ZnO heterostructures, which significantly improved the electric conductivity of these hybrid materials. Because of the structural and compositional features of the hybrid materials, a maximum H 2 production rate of 1.044 mmol g −1 h −1 with high recycling stability (even after 12 h) has been delivered based on an interfacial catalysis. Thus, this study may provide an efficient strategy to optimize the physical and chemical properties of photocatalysts in microsize scale.