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Article – Journal of Advanced Chemical Sciences

Journal of Advanced Chemical Sciences, Volume 2,Issue 3,2016 Pages 302-304

Electrochemical Studies of Biosynthesized Silver Nanoparticles by using Setaria verticillata Plant
A. Prabhu, K. Shankar*, P. Muthukrishnan, A. Kathiresan

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This study discloses the electrochemical studies, optical property and thermal stability of biosynthesized silver nanoparticles by using Setaria verticillata plant extract. The optical property was characterized by X-ray diffraction (XRD) and Thermal gravimetric analysis (TGA). The strong intense peak of XRD indicates the crystallinity of silver nanoparticles. The average size of silver nanoparticles was found to be 24 nm. The decrease in the weight of biosynthesized nanoparticles was due to desorption of biomolecules from silver nanoparticles. The modified GCE reduce the over potential and show well-defined peaks for cyclic voltammetry (CV). The electrochemical result shows that the biosynthesized silver nanoparticles exhibit good electrochemical activity. It can be a route for construction of electrochemical sensors for detection of metal impurities and organic effluents. The modified GCE showed high sensitivity, selectivity and long-term stability.

Keywords: Silver Nanoparticles; XRD; Cyclic Voltammetry;

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