ECO FRIENDLY SYNTHESIS OF ZNO NANOPARTICLES USING SUBSTITUTED IMIDAZOLIUM IONIC LIQUIDS; CARACTERIZATION AND ANTIMICROBIAL ACTIVITY

In this work, ZnO nanoparticles were synthesized via wet chemical method using imidazolium based ionic liquids (ILs), its activity on microorganism pathogens was investigated. X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX) and scanning electron microscopy (SEM) have been employed for the characterization of structure and morphology of the synthesized ZnO particles. Diffraction analysis confirms the formation of cubic form and hexangular structures of nanoparticle, SEM analysis conforms the blossom like shaped morphology with nanosize is observed for the ZnO nanoparticles to IL1 and flake like shaped morphologies with IL2. Pure Ionic liquids and the as synthesized ZnO nanoparticles were screened for their antibacterial activities. In view of the results, among the nanoparticles, it appeared that nanoparticles prepared in ionic liquids with PF6 - are the most effective products against the tested bacterial strains compared with nanoparticles prepared in ionic liquids with BF4 - anion. Key Words: ZnO nano particles, ionic liquids, scanning electron microscopy, X-ray Diffraction, Antimicrobial activity.