<p>Reduced graphene oxide supported Y₂TiO₅ nanocomposite was synthesized via the sol-gel method and subsequently employed as a photocatalyst. Its crystal structure morphology, chemical composition, and optical properties were studied using XRD, FT-IR, SEM with EDAX, UV-DRS, TEM, BET, and XPS spectroscopy. The crystallite dimensions were determined using Scherer’s formula resulting in values of 26, 36, 47 and 69, nm respectively, for rGO, TiO₂, Y₂TiO_5, and rGO/Y₂TiO₅. The rGO exhibited a sheet-like structure, while in the rGO/Y₂TiO₅, Y₂TiO₅ was distributed over the surface of the rGO.The band gap values calculated from UV –DRS analysis were found to be 3.38, 2.17, 2.77 and 1.99 eV for rGO, TiO₂, Y₂TiO_5, and rGO/Y₂TiO₅, respectively. The photoactivity of the materials was investigated using methylene blue (MB) dye degradation in the presence of solar radiation. The findings revealed that under exposure to sunlight and UV light, the TiO₂, Y₂TiO_5, and rGO/Y₂TiO₅ photocatalysts resulted in the decomposition of up to 65, 85, 98 and 61, 75, 91% respectively, of the MB initially present. These results indicate that the synthesized materials have good photocatalytic and antibacterial activities, with potential applications in environmental remediation.</p><p></p>