Stable Cu2O@g-C3N4 core@shell nanostructures: Efficient visible-light photocatalytic hydrogen evolution

被引：60
|
作者：
Liu, Li [1 ]
Qi, Yuehong [1 ]
Hu, Jinshan [1 ]
An, Weijia [1 ]
Lin, Shuanglong [1 ]
Liang, Yinghua [1 ]
Cui, Wenquan [1 ]
机构：
[1] North China Univ Sci & Technol, Coll Chem Engn, Tangshan 063009, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 158卷
基金：
中国国家自然科学基金;
关键词：
Semiconductors; Composite materials; FTIR; Hydrogen production; STABILITY; MICROSPHERES; ENHANCEMENT; IRRADIATION; PERFORMANCE;
D O I：
10.1016/j.matlet.2015.06.034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Cu2O@g-C3N4 core@shell composites were prepared by a combined solvothermal and chemisorption method, in which g-C3N4 was successfully coated onto Cu2O nanospheres via a spontaneous adsorption process. The results showed that the g-C3N4-coated Cu2O nanospheres possessed significantly improved activity for photocatalytic hydrogen production, compared to that of pure Cu2O and g-C3N4, respectively, reaching an optimal yield of up to 606.86 mu mol g(-1) in 3 h at a g-C3N4 content of 5 wt%. The improved photocatalytic performance was due to the synergistic effects of large contact area, specific energy band structure, and enhanced charge separation at the interface of Cu2O and g-C3N4. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：278 / 281
页数：4
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