Graphene-Based Multi-Nanocomposites: Synthesis, Characterization and Photodegradation Analysis.

In this study, Hummer's method was modified to synthesize graphene oxide (GO). GO-based nanocomposites GO/ZnO, GO/MoO, and GO/ZnO/MoO were synthesized using co-precipitation and solid-state reaction methods. The prepared GO and nanocomposites were characterized using UV-Visible spectroscopy, scanning electron microscopy (SEM), Raman spectroscopy, and X-ray diffraction (XRD). SEM images showed distinct morphological differences among GO, GO/ZnO, and GO/MoO, while UV-Visible and Raman spectroscopy demonstrated the influence of ZnO and MoO on the optical properties and interactions of GO. Using visible light irradiation, photocatalytic degradation studies showed improved results for the GO/MoO nanocomposites. The 93% degradation of methylene blue (MB) achieved by GO/MoO after 280 minutes was greater than that of GO/ZnO/MoO (92% degradation at 360 minutes) and GO/ZnO (93% degradation at 340 minutes) within the same period. High efficiency photodegradation of methylene blue (MB) under visible light irradiation of GO/MoO nanocomposites were shown by these findings, demonstrating their strong potential for environmental remediation applications.