Fabrication of Graphene-Based Tin Oxide (Sno2) Composite With Improved Visible Light For The Photocatalytic Degradation of Methylene Blue

Abstract

The SnO₂ nanoparticles were synthesized via the co-precipitation method by varying weight percentages (1%, 2%, 3% and 4%) of GO loaded on the SnO₂ nanoparticles. The effect of varied composition of GO on the SnO₂/GO  nanocomposite were investigated using spectroscopic  instruments such as Scanning Electron Microscope (SEM), Transmission electron microscope (TEM), X-ray diffraction (XRD), Element mapping, Energy Dispersive X-Ray Spectroscopy (EDX), the Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmett-Teller (BET), photoluminescence (PL), the Ultraviolet–visible spectroscopy (UV-Vis) and Diffuse reflectance spectrum (DRS) showed the successful formation of GO/SnO₂ nanostructures. furthermore, the photocatalytic activity of the GO/SnO₂ nanocomposites and SnO₂ were studied through the photodegradation of methylene blue under visible light irradiation. The degradation efficiencies of the GO/SnO₂ were much higher than that of pure SnO₂. From the results obtained, we believe that this current work will provide relevant views for further fabrication of other novel nanostructures and exploration of their applications.