Abstract

This is a comparative study of the nature of oxygenated functional groups incorporated or removed from the graphene derivative, through different synthetic study methodologies, as well as its correlation with the crystalline/amorphous structure, morphology and porous texture generated in the synthesized material. For this purpose, three graphene oxide (GO) derivatives were synthesized by reaction of graphite with an oxidizing mixture. GO1 and GO2 were obtained using the traditional Hummers method and GO3 by a modified Hummers method, with variations in stoichiometry, temperature, and reaction time. In addition, a green synthesis of reduced graphene oxide (r-GO), starting from GO3 and L-ascorbic acid as reducing agent was investigated. The solids were characterized by FT-IR, XRD, SEM, UV-Vis and textural analysis by N2 physisorption.