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Abstract

BIOINSPIRED SYNTHESIS AND CHARACTERISATION OF SILVER NANOPARTICLES USING AQUEOUS SOLUTION OF ALLIUM FISTULOSUM LEAF EXTRACT

Geethamalini P. S., Bhavani S. and Rani S.*

Abstract

In the present study Silver nanoparticles were synthesised from aqueous Silver nitrate through a simple and eco-friendly route using leaf extract of Allium fistulosum as reductant and stabilizer. Effect of Allium fistulosum leaf extract, Silver nitrate concentration, reaction time and temperature on reaction rate were investigated. The results recorded from UV-Visible Spectrometry, TEM and FTIR support the biosynthesis and characterisation of Silver nanoparticles. An intense Surface Plasmon Resonance band at 450 nm in the UV-Visible spectrum clearly reveals the reduction of Silver ions ( Ag+) to Silver ( Ag0) which indicates the formation of Silver nanoparticles. Water soluble organics present in the leaf extract are responsible for the reduction of Silver ions. This green method provides faster synthesis comparable to chemical methods and can be used in areas such as cosmetics, food and medicinal applications

Keywords: Allium fistulosum, Silver nanoparticles, Surface Plasmon Resonance, XRD.


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