Enhanced photocatalytic dye degradation and antibacterial activity of biosynthesized ZnO-NPs using curry leaves extract with coconut water

Nowadays, zinc oxide nanoparticle is ineluctable filler in medicinal and photocatalytic activities. A simple, non-toxic and green synthetic method has been used for synthesis of ZnO-NPs. Characterizations of ZnO-NPs were confirmed by UV–Vis spectroscopy, XRD, FT-IR, EDX analysis and FE-SEM. The XRD pattern reveals that the formation of hexagonal wurtzite structure with average crystallite size of 1.62 nm. FE-SEM images confirmed that the ZnO-NPs are irregular spherical in structure. EDX analysis clearly exhibit strong signal of Zn element and weak signal of O element. Different functional groups in the nanoparticles, curry leaves and coconut water were indicated by FT-IR analysis. Furthermore, the synthesized products were evaluated for photocatalytic activity against organic methylene blue dye and antibacterial activity. Graphic abstract