Information from the abstract
Zn doped CuO nanoparticles have been successfully prepared by Co-precipitation method. The crystal structure, optical, and vibrational properties of the samples are characterized. The effect of zinc doping is studied by Rietveld Refinement Analysis. Monoclinic phase of CuO nanoparticle is confirmed from XRD and extra ZnO plane is obtained in the heavily doped nanoparticle. EDAX spectra are used to analyse chemical composition of both undoped and doped CuO NPs. Uv–vis absorption data show that on increasing doping concentration, blue shift in bandgap energy observed, may be due to the Burstein - Moss Effect. Using FESEM images, change in morphology from flakelike structure to rod like structure observed on doping. PL studies reveal the oxygen vacancies and Cu interstitials in the crystal. FTIR spectroscopy confirms the presence of zinc in CuO nanoparticle on doping by displaying the Cu-O and Zn-O stretching vibrations. Two antifungal tests disc diffusion test and MIC assay have been conducted on samples of CuO NPs. Both undoped and Zn doped CuO nanoparticle exhibited significant antifungal activity against two pathogens Aspergillus Niger and Penicillium Rugulosum. Doped CuO samples exhibit better prospects as good antifungal agent.
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Related topics: Copper-based nanomaterials and applications · Laser-Ablation Synthesis of Nanoparticles · Nanoparticles: synthesis and applications
Thai researcher and institutional participation
Chithra Balakrishnan Madathil · N.H. Sheeba · Boromarajonani College of Nursing
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