Biomaterial (Garlic and Chitosan)-Doped WO-TiO Hybrid Nanocomposites: Their Solar Light Photocatalytic and Antibacterial Activities.

In this work, WO-TiO, chitosan-blended WO-TiO, and garlic-loaded WO-TiO nanocomposites were synthesized by the sol-gel and precipitation technique. The synthesized nanocomposites were characterized by XRD, FE-SEM, HR-TEM, EDX, UV-DRS, FT-IR, and TG-DTA analysis. The photocatalytic efficiency of the three synthesized nanocomposites on the degradation of dyes such as rhodamine B (Rh-B), methylene blue (MB), and methyl orange (MO) as organic pollutants was evaluated under solar light irradiation. The results show that garlic-loaded WO-TiO nanocomposites act as an excellent photocatalyst than chitosan-blended WO-TiO and WO-TiO nanocomposites. Further, the antimicrobial activity of the synthesized nanocomposites was examined against Gram-negative bacteria () by the well diffusion method. Garlic-loaded WO-doped TiO nanocomposites have demonstrated good antibacterial activity over chitosan-blended WO-TiO nanocomposites and WO-TiO nanocomposites. The possible reason may be the presence of organic sulfur compounds in garlic.