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Open Access Nano Express

Highly Efficient Method for Preparing Homogeneous and Stable Colloids Containing Graphene Oxide

Wei Yu1, Huaqing Xie1*, Xinwei Wang2 and Xiaoping Wang1

Author affiliations

1 School of Urban Development and Environmental Engineering, Shanghai Second Polytechnic University, 201209 Shanghai, China

2 Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA

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Citation and License

Nanoscale Res Lett 2011, 6:47  doi:10.1007/s11671-010-9779-7

Published: 30 September 2010

Abstract

Phase transfer method has been developed for preparing homogeneous and stable graphene oxide colloids. Graphene oxide nanosheets (GONs) were successfully transferred from water to n-octane after modification by oleylamine. Corrugation and scrolling exist dominantly in the modified GONs. GONs were single layered with the maximum solubility in n-octane up to 3.82 mg mL-1. Oleylamine molecules chemically attach onto the GONs. Compared with traditional strategies, the phase transfer method has the features of simplicity and high efficiency.

Keywords:
Graphene oxide; Colloid; Phase transfer method; Oleylamine