SYNTHESIS OF GRAPHENE OXIDE AND CHEMICALLY REDUCED GRAPHENE NANOSHEETS

Iván Gómez; Enrique Mejía; Rafael Cabanzo

doi:10.17533/udea.rcm.19449

Authors

Iván Gómez Industrial University of Santander
Enrique Mejía Industrial University of Santander
Rafael Cabanzo Industrial University of Santander

DOI:

https://doi.org/10.17533/udea.rcm.19449

Keywords:

graphite, graphene oxide, Chemically reduced graphene, Spectroscopic characterization, Scanning electron microscopy

Abstract

In this study, a synthetic route for obtaining graphene oxide (GO) and chemically reduced graphene (CRG) was developed. The overall process involve three general stages: (i) liquid phase oxidation of microcrystals graphite previously modified by exfoliative treatment, (ii) conversion of graphite oxide in graphene oxide nanosheets dispersed in aqueous medium by ultrasound application and, (iii) chemical reduction of graphene oxide in solution to convert it in graphene, using hydroxylamine as reducing agent. Results observed through spectroscopic techniques (X-ray diffraction, UV-Vis and infrared spectroscopies, dynamic light scattering) and scanning electron microscopy, allowed the identification of the synthesized materials and know some basic aspects of its structures. The synthesis procedure proved to be simple, efficient and cost-effective, which may be considered an important route to produce bulk scale graphene oxide and chemically reduced graphene nanosheets.

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Author Biographies

Iván Gómez, Industrial University of Santander

PhD chemical student, Universidad Industrial de Santander, Bucaramanga, Colombia

Enrique Mejía, Industrial University of Santander

PhD chemist, Industrial University of Santander

Rafael Cabanzo, Industrial University of Santander

PhD physicist, Universidad Industrial de Santander

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