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Developing Environment-friendly Protocols to Prepare Silver Oxide Nanoparticles Using Orange Peel Extract
Ahmed N. Abd, Wedian K. Abad, Nadir Fadhil Habubi and Raid A. Ismail
A green synthesis technique produced silver oxide nanoparticles (Ag2O NPs) using desiccated orange peels as the starting material. XRD, ultraviolet-visible spectral analysis AFM, SEM and FTIR were utilized to look into the prepared Ag2O NPs. The results from the XRD show that the cubic crystal structure of Ag2O NPs and average crystalline size was 17.02 nm. AFM images show that the film is made up of particles with a mean size estimated to be less than 100 nanometers. From the SEM image of Ag2O, the Ag2O NPs are spherical and have average diameters of about 70 nm with some clump particles of silver oxide. FTIR peak at 510 cm-1 is because of the Ag–O bond, which is caused by the functional groups of proteins and metabolites surrounding the silver Nanoparticles. In addition, the antimicrobial activity of the synthesized Ag2O NPs was evaluated using the disc diffusion technique, and the results showed that it was effective against Gram-positive and Gram-negative microbial strains and fungi.
Keywords: Ag2O NPs, orange peel extracts, antibacterial activity, candida