Dipotassium hydrogen phosphate as reducing agent for the efficient reduction of graphene oxide nanosheets

被引:32
|
作者
Zhang, Xinmeng [1 ]
Li, Kezhi [1 ]
Li, Hejun [1 ]
Lu, Jinhua [1 ]
机构
[1] Northwestern Polytech Univ, Carbon Carbon Composites Res Ctr, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
Graphene oxide nanosheets; Chemically reduced graphene oxide; Dipotassium hydrogen phosphate; Suspensions; CHEMICAL-REDUCTION; PERFORMANCE;
D O I
10.1016/j.jcis.2013.07.021
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
By using dipotassium hydrogen phosphate (K2HPO4 center dot 3H(2)O), an efficient and environmentally friendly route for the reduction of the exfoliated graphene oxide nanosheets (GO) is reported in this work. The chemically reduced graphene oxide nanosheets (RGO) have been analyzed by X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectra, X-ray photoelectron spectroscopy, Field emission transmission electron microscopy, Atomic force microscopy, and Thermogravimetric analysis. Considering the analysis results, dipotassium hydrogen phosphate plays a key role in the efficient removal of the oxygen-containing groups in GO, which avoids the use of high toxic and hazardous reducing agents commonly used to obtain RGO in chemical reduction of GO. Dipotassium hydrogen phosphate itself and prepared graphene are environmentally friendly and inexpensive, which may open new opportunities for mass production of graphene by reducing GO. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码:1 / 7
页数:7
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