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Facile Solution Synthesis of Quasi‐0D/2D ZnO/CuO and ZnO/CuO/NiO Composites for Improved Photocatalytic Performance
Author(s) -
Han Weining,
Luo Zhanzhou,
Zhao Yi,
Li Jibiao,
Li Ping
Publication year - 2020
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201900904
Subject(s) - photocatalysis , non blocking i/o , materials science , heterojunction , ternary operation , monoclinic crystal system , nanoparticle , chemical engineering , scanning electron microscope , nanocomposite , composite material , nanotechnology , catalysis , crystal structure , crystallography , chemistry , optoelectronics , organic chemistry , computer science , engineering , programming language
Heterostructure ZnO/CuO (ZC) and ZnO/CuO/NiO (ZCN) composites are synthesized using a simple solution method. X‐ray diffraction and field‐emission scanning electron microscopy show that quasispherical (0D) monoclinic CuO and/or cubic NiO nanoparticles are found on the surface of the 2D hexagonal ZnO sheets. The photocatalytic properties of the composites in organic pollutant degradation and water splitting can be regulated by adjusting the proportions of Cu/Zn and Ni/Zn added during sample preparation. When ZnO is integrated with high levels of CuO, the binary ZC composites exhibit outstanding photocatalytic performance in degrading methylene blue. Photocatalytic water splitting for H 2 production is improved after considerably reducing CuO levels. When ZnO is codoped with low CuO and NiO levels, the photocatalytic performance of ternary ZCN in H 2 production is significantly enhanced. Herein, a method for designing ZnO‐based sheet/nanoparticle heterostructures is provided, which are widely used as efficient photocatalysts.