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

页码：278 / 281

页数：4

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