Photocatalytic Degradation of Methylene Blue from Aqueous Solutions by rGO/TiO2 Nanocomposites

Methylene blue (MB), as a typical pollutant in industrial dyestuff wastewater, has caused serious water pollution. Therefore, reduced graphene oxide (rGO)/TiO2 nanocomposites were synthetized by a simple hydrothermal technique and used as photocatalyst to degrade MB. It was illustrated when TiO2 nanoparticles were loaded 5wt. O_2^∙ - , OH^∙ and h+ can contribute to the photocatalytic degradation of MB. Furthermore, the photocatalytic degradation kinetic of rGO/TiO2 for MB under UV irradiation was first-order model.