Open AccessComparative Investigation on Micro-Structural, Morphological, Optical, Magnetic and Anti-Microbial Traits of Undoped and Nickel-Incorporated Zinc Oxide Nanoparticles
Author(s) -
Mary Clementia
Publication year - 2021
Publication title -
bioscience biotechnology research communications
Language(s) - English
Resource type - Journals
eISSN - 2321-4007
pISSN - 0974-6455
DOI - 10.21786/bbrc/14.4.64
Subject(s) - materials science , crystallite , wurtzite crystal structure , analytical chemistry (journal) , band gap , zinc , nanoparticle , transmission electron microscopy , nickel , ferromagnetism , chemical engineering , nanotechnology , metallurgy , optoelectronics , chemistry , physics , chromatography , quantum mechanics , engineering
The main objective of the present work is to synthesize pure and nickel doped zinc oxide nanoparticles by facile co precipitation technique. The work is confined to study the effect of various weight ratios (0.3, 0.6 ,0.9) % Nickel into Zinc oxide and to witness the drastic changes that occur in its various physical properties such as structural, optical, magnetic from X ray diffraction (XRD), UV visible (ultra violet) spectra, VSM (Vibrating sample magneto meter). XRD analysis reveals the wurtzite hexagonal structure and it is also found that as the doping concentration increases the crystallite size decreases from 4.6 nm to 3.0 nm. SEM results depicts the agglomeration of the particle, the synthesized samples shows both rod and flakes formation when the doping concentration is increased. Morphological changes were analysed TEM (Transmission electron microscope). The enhancement in the optical behaviour were observed and the energy band gap is calculated with the data obtained from UV-Visible spectra and the optical properties shows a tremendous increase as the Ni content increases which proves the sample a suitable candidate for solar cells and photovoltaic devices. Purity of the prepared sample were investigated through EDAX analysis. The hysteresis loop from the VSM analysis elucidate the saturation magnetization and the ferromagnetic behaviour of the sample. X-ray Photoemission Spectroscopy results indicates the presence of several oxygen species adsorbed on the surface. The study is also extended to analyse its anti-microbial effect against Staphylococcus aureus. The cell culture dish of the sample showed a notable resistance against Staphylococcus aureus when the concentration of nickel is increased and could be extended to pharmaceutical applications in treating several skin infections.