Enhanced photocatalytic performance of graphene-ZnO nanoplatelet composite thin films prepared by electrostatic spray deposition

被引：64

作者：

Joshi, Bhavana N. ^{[1
]}

Yoon, Hyun ^{[1
]}

Na, Seung-Heon ^{[1
]}

Choi, Jae-Young ^{[1
]}

Yoon, Sam S. ^{[1
]}

机构：

[1] Korea Univ Anamdong, Sch Mech Engn, Seoul 136713, South Korea

来源：

CERAMICS INTERNATIONAL | 2014年 / 40卷 / 02期

关键词：

ZnO; Graphene-ZnO; Photocatalyst; Methylene Blue; SOL-GEL METHOD; ZINC-OXIDE; METHYLENE-BLUE; DEGRADATION; NANOCOMPOSITES; TRANSPARENT; DYES;

D O I：

10.1016/j.ceramint.2013.09.060

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Graphene-ZnO (G-ZnO) composite thin films were produced using the electrostatic spray deposition technique (ESD). The effects of the concentration of graphene and annealing temperature on the structural and photocatalytic properties of the G-ZnO films were studied by X-ray diffraction, scanning electron microscopy, atomic force microscopy, Raman spectroscopy, and UV-visible spectroscopy. We demonstrated that the G-ZnO films exhibit enhanced activities towards the photodegradation of methylene blue dye. A G-ZnO film with 0.1 wt% graphene that was annealed at 300 degrees C showed the highest photo-degradation activity. We found that the incorporation of graphene reduced electron-hole recombination in the ZnO film (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：3647 / 3654

页数：8

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