Influence of precursor crystallinity on photocatalytic activity of PdS/CdS-ZnS

被引：0
|
作者：
Svera, P. [1 ,2 ]
Racu, A. V. [1 ,3 ]
Mosoarca, C. [1 ]
Ursu, D. [1 ,2 ]
Linul, P. A. [1 ]
Baies, R. [1 ,2 ]
Banica, R. [1 ,2 ]
机构：
[1] Natl Inst Res & Dev Electrochem & Condensed Matte, 1 Plautius Andronescu Str, Timisoara 300224, Romania
[2] Univ Politehn Timisoara, Piata Victoriei 2, Timisoara 300006, Romania
[3] ASM, Inst Appl Phys Moldova, Acad Str 5, Kishinev, Moldova
来源：
JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2016年 / 18卷 / 11-12期
关键词：
Photocatalysis; ZnS/CdS; Water splitting; VISIBLE-LIGHT IRRADIATION; HYDROGEN-PRODUCTION; H-2; EVOLUTION; COMPOSITE PHOTOCATALYST; SOLID-SOLUTION; THIN-FILMS; CDS; ZNIN2S4; SYSTEM;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work we present the synthesis and the photocatalytic activity of PdS/CdS-ZnS composites. The photocatalysts were obtained in hydrothermal conditions at 170 degrees C from zinc sulphides as sulphide source. The products were characterized by powder X-ray diffraction scanning electron microscopy, energy-dispersive X-ray, transmission electron microscopy, UV-visible and photoluminescence spectroscopies. From Tauc plot the optical energy gap was found to be nearly 2.40 eV. Experiments for hydrogen evolution were conducted in sulfide/sulfite aqueous solution under visible light. The size of photocatalyst nanoparticles and the efficiency of water splitting reaction increases with increasing of ZnS precursor crystallinity. The maximum value for hydrogen evolution rate is 3.8 mmol.g(-1)h(-1), for the sample with the highest crystallinity.
引用
收藏
页码：1027 / 1032
页数：6
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