Photocatalytic Performance of Indigo-Dye-Doped Graphene-Supported BiVO4 Nanocomposite under Visible Light

摘要

In this work, novel graphene supported BiVO4 based nano-composites were derived successfully by employing hydro-thermal method. Pure bismuth vanadate limits a number of applications because of its insufficient photo catalytic activity in ordinary sun light. So, Indigo-Reduced graphene oxide (RGO)/BiVO4 nanocomposites were designed as a next step to achieve efficient photo-catalytic activity in visible light in relation to pure BiVO4 or its other nanocomposites. Character- ization of nanocomposites was carried out by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and UV-Vis spectroscopy (UV). The enhancement of the photo-catalytic activities of the prepared nanocomposite were contributed to the effective charge transfer of photo-generated electron from BiVO4 to RGO and pi to pi* stacking improved absorption performance.