GREEN ROUTE SYNTHESIS AND CHRACTERIZATION OF ZINC OXIDE NANORODS AND ITS COMPOSITE WITH PVA

Abstract

In this work, I have successfully synthesized Zinc Oxide Nanorods (ZnO-NR) via the Green Synthesis route. Green route has been incorporated to synthesize ZnO-NR and reduce the usage of toxic precursors as well as toxic by-products. Synthesis is carried out using Zinc Nitrate (Zn (NO3)2.6H2O) as a precursor and aqueous extract of Osmunda Regilis leaves. The plant extract of Osmunda Regilis leaves has a significant role as a reducing agent because of the presence of polyphenolic compounds. The synthesized ZnO-NR are then characterized by various characterization techniques- Scanning electron microscopy (SEM) X-Ray Diffraction (XRD), , Fourier transform infrared spectroscopy (FTIR), U-V Visible Spectroscopy (UV-Vis). XRD results show that the as-synthesized ZnO sample is extremely crystalline, having a wurtzite structure. UV-Vis absorption spectrum represents a typical spectrum for ZnO-NR which gives absorption peak at 375 nm and exhibits band gap of 3.3 eV. Fourier Transform Infrared Spectroscopy (FTIR) shows the victorious chemical bond formation of ZnO nanorods. SEM micrographs display that formed Nanorods are Crystalline and have a lateral size of nanorods lying between 30-100 nm. Since it is challenging to form a film of bare powder for studying electrical properties therefore we formed ZnO/PVA composite thin film. The electrical properties of ZnO/PVA nanocomposite thin film are studied which exhibits the ohmic behaviour.