Main Article Content
Abstract
Nickel sulfide (NiS) Nanoparticles havebeen successfully synthesized by electrochemical method .The synthesized NiSNanoparticles were used as a catalyst for the photodegradation of oxalic acid, Formicacid, and Acetic acidunder various experimental conditions. The NiSNanoparticles were characterized by varioustechniques such as UV-visible spectroscopy, SEM-EDAX, X-ray diffraction. The UV-visible spectroscopy study reveals that the maximum intensity peak at 220.19nm in the UV region and the band gap energy is found to be 2.76eV and this was calculated using Tauc plot. The SEM results showed the surface morphology of the synthesized NiS Nanoparticles. The presence of nickel and sulphur in the Nanoparticles is confirmed from EDAX spectrum. The X-ray diffraction studies shows that the structure of NiS washexagonal crystal structure and average crystal size was found to be 24.38nm which was calculated using Debye-Scherrers formula. The photocatalytic study of the synthesized NiSNanoparticles was investigated by the kinetics of photodegradation of carboxylic acids by volumetric method by using NaOH solution. Taft LFER was tested,and the isokinetic temperature β was calculated for oxidation of carboxylic acids. The antibacterial activity was investigated to synthesized Nanoparticles by using Bacillus subtilis MTCC 2763 and Escherichia coli MTCC 40 of different bacteria.