3th WCSET-2014 at Nepal

 

Applied Sciences Session:

Title:            Green synthesis of gold nanoparticles using fruit extracts
Authors:       A. Clara Dhanemozhi, D. Chitra
Abstract:      The aim of this study is to synthesis gold nanoparticles with an ecofriendly method and to characterize it. Gold nanoparticles were prepared by the reduction of HAuCl(4) by using citrus fruits juice extract as the reducing and stabilizing agent. Citrus lemon, citrus pineapple, Citrus grapes and Citrus Orange juice extracts were used for the synthesis. Various concentrations of fruit extracts were added with 1.0mM hydrogen tetracholoroaureate (III) hydrate (HAuCl4 3H2O) by sonication method. The gold nanoparticles obtained were characterized by XRD and the sizes of the particles were calculated. The particles are found to be spherical in nature and it varies from 45nm to 70nm. It was found that the size varies with the concentration. UV absorption studies were done to confirm the absorbance range of the nanoparticles. Surface morphological studies were done with FESEM and AFM. This is a novel and simple method for the biological synthesis of polymorphic gold nanoparticles with potent physical applications.

Keywords:   Gold, citrus fruits, Concentration, size
Pages:         572-575

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