Enhanced Photocatalysis of Methylene Blue by GO/SnO2 Nanocomposites: A Public Health Perspective

This study successfully synthesized SnO2 nanoparticles via co-precipitation and subsequently loaded them with varying weight percentages (1-4%) of graphene oxide (GO) using a hydrothermal method. The resulting GO/SnO2 nanocomposites were comprehensively characterized using a suite of spectroscopic techniques, including SEM, TEM, XRD, elemental mapping, EDX, FT-IR, BET, PL, UV-Vis, and DRS. These analyses confirmed the successful formation of the desired nanostructures. Furthermore, the photocatalytic performance of the nanocomposites and pure SnO2 was evaluated by monitoring the photodegradation of methylene blue under visible light irradiation, demonstrating the impact of GO loading on photocatalytic activity. The degradation efficiencies of the GO/SnO2 were much higher than that of pure SnO2. From the results obtained, we believe that this current study will provide relevant views for further fabrication of other novel nanostructures and exploration of their potential carcinogenic and environmental consequences.