Synthesis of BaTiO3-TiO2-Graphene nanocomposites and kinetics studies on their photocatalytic activity

Abstract

BaTiO3-TiO2 nanoparticles were fabricated by a wet-chemical method using barium chloride dihydrate (BaCl2·2H2O), titanium dioxide (TiO2), and oxalic acid (C2H2O4) as precursors. BaTiO3-TiO2-graphene nanocomposites were obtained by heating the BaTiO3-TiO2 nanoparticles with graphene in an electric furnace at 700 °C for 2 h. X-ray diffraction analysis revealed that the resulting products were BaTiO3-TiO2-graphene nanocomposites. Scanning electron microscopy revealed the morphology of the nanocomposites. UV-vis spectrophotometry was used to analyze the photocatalytic degradation of several organic dyes using the BaTiO3-TiO2-graphene nanocomposites as a photocatalyst under ultraviolet irradiation at 254 nm.