Enhancing Stability and Photocatalytic Activity of ZnO Nanoparticles by Surface Modification of Graphene Oxide

被引:29
作者
Wang, Yinjie [1 ]
Liu, Jincheng [1 ]
Liu, Lei [1 ]
Sun, Darren D. [1 ]
机构
[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore
基金
新加坡国家研究基金会;
关键词
Graphene Oxide; Zinc Oxide; Photocatalytic; Acid Orange 7; Water Treatment; GRAPHITE OXIDE; ZINC-OXIDE; ELECTROCHEMICAL DEPOSITION; ORGANIC-SOLVENTS; SOLAR-CELLS; SHEETS; DEGRADATION; TIO2; SIZE; NANOCOMPOSITES;
D O I
10.1166/jnn.2012.6174
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
This work reports a simple method for the preparation of high-quality GO-ZnO nanocomposite materials. Transmission electron microscopy (TEM) revealed that the ZnO nanoparticles are uniformly distributed on the GO sheets and the diameter of the ZnO nanoparticles falls in 5-8 nm. Further experimental results imply that involving GO sheets into the system could remarkably prevent the aggregation of ZnO nanoparticles compared to pure ZnO. The photocatalytic activity and stability of the prepared GO-ZnO composite for the degradation of Acid Orange 7 (AO 7) under UV light irradiation is significantly enhanced in comparison to the as-synthesized pristine ZnO nanoparticles. Considering the high photocatalytic acitivity and relative stability, this high-quality GO-ZnO nanocomposite is beneficial for the applications in environmental engineering and other fields.
引用
收藏
页码:3896 / 3902
页数:7
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