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Issue 6, 2018
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Simplified production of graphene oxide assisted by high shear exfoliation of graphite with controlled oxidation

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Abstract

In this work, a scalable method was developed to produce graphene oxide (GO) via high-shearing of pre-oxidized graphite. Various oxidation states of pre-oxidized graphite were obtained following different oxidation periods through a modified Hummers’ method. The oxidized graphite flakes were investigated by X-ray diffractometry, Fourier transform infrared spectroscopy, and Raman spectroscopy. Instead of a prolonged oxidation period of more than 24 hours, the graphite sample that underwent 6 hours of oxidation was selected for the high-shearing process to obtain exfoliated GO. The transmission electron microscopy and atomic force microscopy results confirmed that large-area and single-layer GO can be produced by the high-shear exfoliation method with pre-oxidized graphite flakes. This modified procedure enables the remarkably simple, fast, and effective production of high-quality GO.

Graphical abstract: Simplified production of graphene oxide assisted by high shear exfoliation of graphite with controlled oxidation

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Article information


Submitted
12 Dec 2017
Accepted
05 Feb 2018
First published
06 Feb 2018

New J. Chem., 2018,42, 4507-4512
Article type
Paper

Simplified production of graphene oxide assisted by high shear exfoliation of graphite with controlled oxidation

K. Y. Chong, C. H. Chia, S. W. Chook, S. Zakaria and D. Lucas, New J. Chem., 2018, 42, 4507
DOI: 10.1039/C7NJ04911K

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