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Green synthesis of gold nanoparticles from Combretum indicum and their characterization

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Title Green synthesis of gold nanoparticles from Combretum indicum and their characterization
 
Creator Gupta, Sachchidanand Soaham
Patanjali, Pooja
Mishra, Neeraj Kumar
Kumar, Amit
Chopra, Indu
Singh, Rajeev
 
Subject Gold nanoparticles
Green synthesis
Plant extract
Surface plasmon resonance
 
Description 730-734
Green synthesis of gold nanoparticles (AuNPs) facilitated by the use of an aqueous petal extract of the medicinal plant
Combretum indicum (Madhumalti) as a bio-reducing agent has been performed in this work. In the absence of ammonia, the
average diameter of synthesised gold nanoparticles ranged from 41nm to 79.40 nm whereas the range is 11.856 nm to 49.2 nm in the
presence of ammonia. The formation of AuNPs is mediated by time that is monitored by Surface Plasmon behaviour using UV-Vis
Spectroscopy at different stirring time intervals. The reaction shows a significant increase in absorbance with time with an absorbance
peak in the range of 530-570 nm after one hour of stirring. Synthesis of nanoparticles is confirmed by the change of colour
of auric chloride from yellow to dark brown. Synthesized AuNPs have been characterized by dynamic light scattering
(DLS), scanning electron microscopy (SEM), and energy dispersive X-ray spectroscopy (EDX).
 
Date 2022-02-02T11:35:46Z
2022-02-02T11:35:46Z
2021-11
 
Type Article
 
Identifier 0975-0991 (Online); 0971-457X (Print)
http://nopr.niscair.res.in/handle/123456789/59047
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJCT Vol.28(6) [November 2021]