Photocatalytic hydrogen evolution from water splitting using Cu doped ZnS microspheres under visible light irradiation

被引：135
|
作者：
Lee, Gang-Juan [1 ]
Anandan, Sambandam [1 ,2 ]
Masten, Susan J. [3 ]
Wu, Jerry J. [1 ]
机构：
[1] Feng Chia Univ, Dept Environm Engn & Sci, Taichung 407, Taiwan
[2] Natl Inst Technol, Dept Chem, Nanomat & Solar Energy Convers Lab, Tiruchirappalli 620015, India
[3] Michigan State Univ, Dept Civil & Environm Engn, E Lansing, MI 48824 USA
来源：
RENEWABLE ENERGY | 2016年 / 89卷
关键词：
Microwave irradiation; Zinc sulfide; Microspheres; Water splitting; Hydrogen evolution; SOLID-STATE REACTION; ZINC-SULFIDE; LUMINESCENCE PROPERTIES; SONOCHEMICAL SYNTHESIS; OPTICAL-PROPERTIES; H-2; EVOLUTION; MN; PHOTOLUMINESCENCE; NANOSTRUCTURES; GENERATION;
D O I：
10.1016/j.renene.2015.11.083
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Cu/ZnS microspheres have been successfully synthesized using microwave irradiation method without using any template. Cu/ZnS microspheres were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high resolution transmission electron microscopy (HR-TEM), inductively coupled plasma optima optical emission spectrometer (ICP-OES), X-ray photoelectron spectroscopy (XPS), diffused reflectance spectroscopy (DRS), and electrochemical impedance spectroscopy (EIS) methods. Tuning of band gap from 3.43 to 236 eV was successfully achieved upon doping copper (0-10%) into ZnS. The photocatalytic activity was investigated by photosplitting of water containing an aqueous Na2S solution under visible light irradiation. Among the prepared photocatalysts, the hydrogen evolution rate reaches the maximum of about 973.1 mu mol h(-1) g(-1) for 2.0 mol% Cu2+ ion doped ZnS. Moreover, Cu/ZnS microspheres were found photocatalytically stable during the 48 h test runs. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：18 / 26
页数：9
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