TiO_2 Impregnated Graphene Nanostructures: An Effectual Photocatalysts for Water Remediation Application

摘要

In this work, we describe the fabrication of nanohybrid TiO_2 impregnated Graphene nanostructures by modified Hummer's method. The chemically impregnated TiO_2-Graphene hybrid nanostructures drastically enhanced their photodegradation activity of methylene blue (MB) dye in an aqueous medium compare to pure TiO_2 nanoparticles. The enhancement in the photocatalytic activity was ascribed by a heterojunction between TiO_2-Graphene interfaces. It remarkably decreased the recombination rate and likewise increased the number of holes participating in the photodegradation process, confirmed by XPS analysis. This study can provide a new insight for constructing the hybrid photocatalysts, which can be used in environmental pollution and water treatment applications.