Arab Journal of Physical Chemistry

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ISSN: 1658-6883

Article: FT-IR spectroscopy and X-ray diffraction characterization of biosynthesis silver/silver chloride nanoparticles.

 

Title : FT-IR spectroscopy and X-ray diffraction characterization of biosynthesis silver/silver chloride nanoparticles.
Author : Prof. Dr. Akl M. Awwad
Issue : Volume 2 (2015)
Article ID : APC-2015-3
Abstract : Biosynthesis of silver/silver chloride nanoparticles (Ag/AgCl-NPs) using aqueous solution of Ligustrum vulgare (Lv) leaf extract were confirmed by combining the FT-IR spectroscopy data with the results of X-ray diffraction (XRD) . The pathway of Ag/AgCl-NPs formation is by means of reduction silver nitrate (AgNO3) by ligustrum vulgare leaf extract, which acts as both reducing agent and a source to release chlorine ions to react with silver nanoparticles and forming silver chloride nanoparticles. The morphology and structure of such novel product strongly depend on the reaction time, temperature, silver nitrate concentration, and the amount of Ligustrum vulgare leaf extract. Ag/AgCl-NPs were found to be nearly spherical in shape and with average crystallite size of ~ 20 nm. UV-vis spectrum displays a single surface Plasmon resonance (SPR) band at 427-440 nm indicating the absence of anisotropic particles. The antibacterial activity of biosynthesized silver/silver chloride nanoparticles showed effective inhibitory activity against water borne pathogens Listeria and Shegella bacteria.
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