Issue 9, 2013
From the journal:

New Journal of Chemistry

Synthesis of superior dispersions of reduced graphene oxide†

Caibao Chen,a   Jing Li,a   Run Li,a   Guyu Xiao*a  and  Deyue Yana  

* Corresponding authors

a School of Chemistry and Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China
E-mail: gyxiao@sjtu.edu.cn
Tel: +86 21 54742664

Abstract

Highly dispersible and biocompatible reduced graphene oxide (rGO) is greatly appealing for its biological applications. Natural L-lysine was employed as a reducing agent and sodium cholate as a stabilizer to synthesize stable suspension of rGO in this work. The effective reduction of graphene oxide by L-lysine was confirmed using X-ray diffraction, transmission electron microscopy, UV-vis, FT-IR, XPS and Raman spectroscopy. More importantly, the dispersibility of the as-made rGO was remarkably enhanced by tip sonication. As a result, the dispersible concentration of rGO was up to 4 mg mL−1 in water, which is the highest dispersibility so far. In addition, both L-lysine and sodium cholate are biocompatible. Hence this work provided a facile approach to large-scale preparation of biocompatible rGO.

Graphical abstract: Synthesis of superior dispersions of reduced graphene oxide

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Article information

DOI
https://doi.org/10.1039/C3NJ00304C
Article type
Paper
Submitted
22 Mar 2013
Accepted
17 Jun 2013
First published
18 Jun 2013

New J. Chem., 2013,37, 2778-2783

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Synthesis of superior dispersions of reduced graphene oxide

C. Chen, J. Li, R. Li, G. Xiao and D. Yan, New J. Chem., 2013, 37, 2778 DOI: 10.1039/C3NJ00304C

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