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Preparation of Ni12P5-decorated Cd0.5Zn0.5S for efficient photocatalytic H2 evolution
被引:35
作者:
Sun, Hongli
[1
]
Xue, Wenhua
[1
]
Fan, Jun
[1
]
Liu, Enzhou
[1
]
Yu, Qiushuo
[1
]
机构:
[1] Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China
基金:
中国博士后科学基金;
中国国家自然科学基金;
关键词:
Hydrothermal synthesis;
Cd0.5Zn0.5S;
Cocatalyst;
Ni12P5;
Photocatalytic H-2 production;
G-C3N4;
NANOSHEETS;
HYDROGEN EVOLUTION;
NICKEL PHOSPHIDE;
WATER;
COCATALYST;
H-2-PRODUCTION;
NANOPARTICLES;
NANOCOMPOSITES;
PERFORMANCE;
COMPOSITE;
D O I:
10.1016/j.jallcom.2020.156951
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
Herein, Ni12P5/Cd0.5Zn0.5S composites were synthesized through a two-step hydrothermal method to enhance the photocatalytic H-2 production. The results show that 10%-Ni12P5/Cd0.5Zn0.5S composites exhibited the highest H-2 production rate with 46.82 mmol g(-1) h(-1), which was 5.1 times higher than that of monomer Cd0.5Zn0.5S. The apparent quantum efficiency (AQE) was 24.5% under 400 (+/- 5)-nm light irradiation. The improved activity can be attributed to the enhanced light absorption and promoted separation of photogenerated charge carriers after Ni12P5 was introduced. The structures, morphology and photoelectrochemical properties are investigated in detail. This work provides a convenient and low cost method to develop high-efficiency photocatalyst for environmental and energy-related applications. (C) 2020 Elsevier B.V. All rights reserved.
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页数:10
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