Chemical route for the production of graphene oxide from commercial graphite oxidation
Keywords:
graphene oxide, FTIR, TGA, FEG-SEMAbstract
This work presents the synthesis of graphene oxide (GO) by a chemical route. Commercial graphite was used as raw material and the method used to obtain GO was Hummers and Hoffman method. GO was characterized by means of Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetry (TGA) and field emission scanning electron microscopy (FEG-SEM). The FTIR results confirm the presence of carbonyl, hydroxyl and epoxy groups and the TGA demonstrates that GO presents three mass loss events, while graphite has only one mass loss event. The graphite morphology shows the formation of aggregates in the sample surface, while GO presents formation of layers. Finally, the characterizations demonstrated the production of graphene oxide from commercial graphite using the chemical method proposed.
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