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INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH

A Step Towards Excellence
Published by : Advanced Scientific Research
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0975-2366
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IJPR 9[3] July - September 2017 Special Issue

July - September 9[3] 2017

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ECO-FRIENDLY SYNTHESIS AND CHARACTERIZATION OF SILVER NANOPARTICLES FROM CAESALPINIA CORIARIA (Jacq) Willd

Author: ANANDHI D, DAISY ANU PRIYA S, REVATHI K
Abstract: Over the past few decades, nanoparticles of noble metals such as silver exhibited significantly distinct physical, chemical and biological properties from their bulk counterparts. Nano-size particles of less than 100 nm in diameter are currently attracting increasing attention for the wide range of new applications in various fields of industry. Such powders can exhibit properties that is differ substantially from those of bulk materials, as a result of small particle dimension, high surface area, quantum confinement and other effects. Most of the unique properties of nanoparticles require not only the particles to be of nano-sized, but also the particles be dispersed without agglomeration. The aim of the present study is to prepare the ethanloic extract from Caesalpinia coriaria which was used for the synthesis of silver nanoparticles (AgNPs) from silver nitrate solution. The formation and stability of the reduced silver nanoparticles in the colloidal solution were monitored by UV–vis spectrophotometer analysis. The sharp bands of silver nanoparticles were observed around 450 nm. AFM showed the irregular shapes of Ag NPs, and the formation of silver nanoparticles. The SEM analysis showed that the sizes of the synthesized AgNps ranged from 88 to 124 nm. SEM determination of the brown color stable samples showed the formation of silver nanoparticles and well dispersed nanoparticles could be seen in the samples treated with silver nitrate. of the synthesized AgNps ranged from 88 to 129 nm. FTIR analysis showed the band between 3500-3000 cm-1 corresponds a stretch for C-H bonds, peak around 1500-1000 cm-1 showed the bond stretch for N-H. and 3176 cm-1 corresponds a stretch for C-H bonds, peak around 1500-810 cm-1 showed the bond stretch for N-O. Zeta size was found to be 144 nm and zeta potential was found to be -0.1 mV.The silver nanoparticles have been produced by C.coriaria extracts, which is an economical, efficient and eco-friendly process. UV–vis spectrophotometer, XRD, AFM and SEM techniques have confirmed the reduction of silver nitrate to silver nanoparticles.
Keyword: Caesalpinia coriaria, UV–vis spectrophotometer, FTIR, Zeta Analysis,AFM, SEM, AgNPs,.
DOI: https://doi.org/10.31838/ijpr/2019.11.01.029
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