The photocatalytic degradation of hexavalent chromium using GO-ZrO₂ nanocomposite, the GO- ZrO₂ nanocomposite was prepared by hydrothermal method and prepared GO-ZrO₂ nanocomposite was characterized by X-ray diffractometer (XRD), field emission scanning electron microscope (FE-SEM) with energy dispersive absorption X-ray spectroscopy (EDAX), transmission electron microscope (TEM), UV-Vis spectrophotometer, respectively. The results show that in the nanocomposite the ZrO₂ nanoparticles were densely coated on the GO nanosheets, which display a good combination between graphene and ZrO₂ nanoparticles. The GO-ZrO₂ nanocomposite exhibits an enhanced photocatalytic performance in the reduction of Cr(VI) with removal rate 98% under UV light irradiation.

Keywords: Graphene-ZrO₂; FE-SEM; Photocatalytic Degradation;