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Fabrication and Characteristics of Reduced Graphene Oxide Produced With Different Green Reductants

Fabrication and Characteristics of Reduced Graphene Oxide Produced With Different Green Reductants

Changyan Xu, Xiaomei Shi, An Ji, Lina Shi, Chen Zhou, Yunqi Cui

PLoS One. 2015 Dec 14;10(12):e0144842.

PMID: 26658644

Abstract:

There has been an upsurge of green reductants for the preparation of graphene materials taking consideration of human health and the environment in recent years. In this paper, reduced graphene oxides (RGOs) were prepared by chemical reduction of graphene oxide (GO) with three green reductants, L-ascorbic acid (L-AA), D-glucose (D-GLC) and tea polyphenol (TP), and comparatively characterized by X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR) spectra, Raman spectra and electrical conductivity analysis. Results showed that all these three reductants were effective to remove oxygen-containing functional groups in GO and restore the electrical conductivity of the obtained RGO. The RGO sample with L-ascorbic acid as a reductant and reduced with the existence of ammonia had the highest electrical conductivity (9.8 S·cm(-1)) among all the obtained RGO samples. The mechanisms regarding to the reduction of GO and the dispersion of RGO in water were also proposed. It is the good dispersibility of reduced graphene oxide in water that will facilitate its further use in composite materials and conductive ink.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
LS71421	Graphene ink in water			Price

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