Preparation of multi-branched Au-ZnO hybrid nanocrystals on graphene for enhanced photocatalytic performance

被引：14

作者：

Zeng, Deqian ^{[1
]}

Gong, Pingyun ^{[1
]}

Chen, Yuanzhi ^{[1
]}

Wang, Chunge ^{[1
]}

Peng, Dong-Liang ^{[1
]}

机构：

[1] Xiamen Univ, Coll Mat, Dept Mat Sci & Engn, Xiamen 361005, Peoples R China

来源：

MATERIALS LETTERS | 2015年 / 161卷

基金：

中国国家自然科学基金;

关键词：

Nanoparticles; Nanocomposites; Hybrid nanocrystals; Graphene; Photocatalysis; CHARGE-TRANSFER; NANOPARTICLES; NANOCOMPOSITES; PHOTOACTIVITY; FABRICATION; REDUCTION; CELLS; OXIDE;

D O I：

10.1016/j.matlet.2015.08.153

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hybrid nanostructures containing multiple components have received intensive interests. Herein, we report a solution method for the preparation of Au-ZnO/graphene nanocomposites in which multi-branched Au-ZnO hybrid nanocrystals with ZnO nanorods growing on octahedral Au cores are anchored on graphene. The as-prepared hybrid nanocrystal and nanocomposite samples are characterized by transmission electron microscopy, X-ray diffraction and ultraviolet visible spectroscopy. The photocatalytic activity is investigated by the degradation of Rhodamine B (RhB) under ultraviolet light irradiation. The results show that Au-ZnO/graphene nanocomposites not only have optical absorptions in both UV and visible ranges, but also exhibit much enhanced photocatalytic performance compared to pure Au-ZnO hybrid nanocrystals. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：379 / 383

页数：5

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