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Abstract


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IJCPS JOURNAL-Vol 3 Issue 5, Sep-Oct 2014

Pages: 10

Kinetic Study on Green Synthesis of Gold Nanoparticles Using Bougainvillea Glabra Leaf Extract

Author: DR. A. LEEMA ROSE, S. VIDHYA*, S. RAMAGIRIJA, M. RAMYA, A. RAMYA MARY, M.S. REKA AND M. ROSELIN ANSILDA

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Abstract

Development of eco-friendly process for the synthesis of nanoparticles is one of the main steps in the area of nanotechnology. Green synthesis of nanoparticles is the evolution of nanobiotechnology. It is a low cost, environment benign, nontoxic and large scale up process. In this study, Bougainvillea glabra leaf extract was used for the bioreduction of gold ions to nanoparticles. Reduction of HAuCl4 by polyphenols present in leaves of B.glabra at different temperature provides AuNPs (Au3+→Au0 ). Bioreduction process was carried out to study about the factors affecting the nanoparticles synthesis by changing the gold ion concentration and temperature. 1mM gold ion concentration and temperature125 ºC is more favorable for maximum production of gold nanoparticles. UV-vis spectrum was used to characterize these synthesized gold nanoparticles and the SPR band was observed at 565 nm. The gold nanoparticles are characterized by FTIR.This green synthesis method has many advantages over the chemical method because it reduces the use of toxic metals in the synthesis process and it is a single step eco-friendly method.

Keywords: Bougainvillea glabra, Gold nanoparticle, concentration, temperature