Synthesis of graphene oxide for boron removal: equilibrium, kinetic and thermodynamic studies

Abstract

Abstract Graphene oxide is one of the promising carbonous materials, which has such a great application in industry. Modified Hummers method was applied to synthesize graphene oxide. Characterization technics showed that pure graphene oxide was successfully obtained. Its adsorptive properties were investigated by boron adsorption. The results were demonstrated that boron adsorption on graphene oxide was a pH dependent process and maximum adsorption was achieved at pH 6 (0.98 mg g− 1). Langmuir adsorption capacity was calculated as 3.92 mg g− 1. The kinetic data brought to light that pseudo-second-order kinetic model was well described the experimental data.