Synthesis of graphite oxide using hummers method: Oxidation time influence

Graphene has many applications and is a promising material. Graphene synthesis methods include mechanical exfoliation, GO reduction, and chemical vapor deposition. In this work, the graphite synthesis to produce graphite oxide powder as a raw material for graphene oxide with a variation in oxidation time using the Hummers method was performed. Characterization of the result was analyzed using x-ray diffraction (XRD) and scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS). The XRD investigations resulted in a peak of graphite oxide material with the highest intensity is obtained at the oxidation time of 20 hours. Based on SEM images, sample thickness morphology is uneven and overlaps. The surface morphology of the thinner graphite oxide is slightly transparent under oxidation-time conditions of 20 hours.