SYNTHESIS, CHARACTERIZATION, ANTIMICROBIAL AND CATALYTIC ACTIVITY OF LIGAND CAPPED COPPER NANOPARTICLES

Abstract

The aim of this research work is to report novel ligand capped copper nanoparticles and their catalytic and antimicrobial activity. In the present investigation, CuNP-L1 and CuNP-L2 were produced by reducing copper sulphate with ligands viz, ascorbic acid and 4-hydroxybenzaldoxime in aqueous medium without inert gas insulation at low temperature (80°C) respectively. The ligand capped copper nanopartices were characterized by UV-Visible and FT-IR spectroscopy, Powder X-ray diffraction (PXRD) and Scanning electron microscopy-energy dispersive spectroscopy (SEM-EDX). From major diffraction peaks, the average particle size was determined using Debye-Scherrer equation. The catalytic activity of capped copper nanoparticles in the reduction of 4-nitrophenol to 4-aminophenol was investigated and compared. Antimicrobial activity of present copper nanoparticles was studied against the pathogens viz. Staphylococcus aureus, Escherichia coli, and Candida albicans.