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Graphene oxide (GO) doped CeO2 as potential enhancer of methyl orange degradation

Abstract In this article, a simple method for the synthesis of Graphene Oxide-Cerium oxide (GO/CeO2) is carried out. The prepared sample was characterized in detail, such as scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), Raman, Brunauer-Emmett-Teller technology N2 adsorption-desorption analysis (BET), photoluminescence (PL) and UV-visible diffuse reflectance spectroscopy (DRS). It was indicated that GO was successfully incorporated into CeO2. The photocatalytic mechanism of GO/CeO2 was also explained. The MO solution catalyzed by CeO2 and GO/CeO2 was analyzed by a UV-visible spectrometer. The efficiency of GO/CeO2 degrading methyl orange (MO) is improved from 50% to 87% compared to pure CeO2 under the visible light. GO/CeO2 exhibited better photocatalytic performance than CeO2, which indicated GO doping improved the photocatalytic capacity of the CeO2 catalyst. It may have potential applications in addressing environmental wastewater.