Abstract

Nanoparticles of the Zn were synthesized by Gymnema sylvestre leaf extract characterized by UV (UV-visible spectrum), FT-IR (Fourier transformance infra-red spectroscopy), X-ray diffraction (XRD), DLS (Dynamic light scattering analysis) and scanning electron microscopy (SEM). The XRD patterns of the Zn and nanoparticles could be indexed to hexagonal and Wurtzite phase, respectively. Aggregated nanoparticles of Zn with spherical-like shapes were observed with particle diameter in the range of 200-400μm. These nanoparticles were used for photocatalytic degradation of methylene blue dye under solar light irradiation. The ZnNPs shown very good antimicrobial Assay towards microbes isolated from contaminated dye soil..

Keywords: Gymnema sylvestre; ZnNPs; photocatalytic activity; Dye degradation; Antimicrobial Assay

Abbreviations: UV: UV- Visible Spectrum; FT-IR: Fourier Transformance Infra-Red Spectroscopy; XRD: X-Ray Diffraction; DLS: Dynamic Light Scattering Analysis; SEM: Scanning Electron Microscopy