Green Biosynthesis of Silver Nanoparticles using Aqueous Urginea Indica Bulbs Extract and Their Catalytic Activity Towards 4-NP

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R. Manigandan, S. Praveen kumar, S. Munusamy, T. Dhanasekaran, A. Padmanaban, K. Giribabu, R. Suresh, V. Narayanan (2017). Green Biosynthesis of Silver Nanoparticles using Aqueous Urginea Indica Bulbs Extract and Their Catalytic Activity Towards 4-NPMechanics, Materials Science & Engineering, Vol 10. doi:10.2412/mmse.64.70.791

Authors: R. Manigandan, S. Praveen kumar, S. Munusamy, T. Dhanasekaran, A. Padmanaban, K. Giribabu, R. Suresh, V. Narayanan

ABSTRACT. A simple, green method is described for the synthesis of silver nanoparticles by reaction of the aqueous solution of Urginea indica (U. I.) bulbs extract and AgNO3. In this process, colloidal metallic silver nanoparticles (Ag0 Nps) were of a particular interest due to its haunting physicochemical properties. The formation of Ag0 Nps nanoparticles was proved by the significant color change during the preparation. The formation process and color variations by the impact of pH and concentration of extract were analyzed by UV-VIS spectrophotometer. Functional groups present in the extract and Ag0 NPs was characterized by FT-IR spectroscopy. The crystal structure, lattice parameter and crystallite size of synthesized silver NPs was confirmed by X-ray diffraction technique. The X-ray diffraction analysis of the sample showed the formation of nanoparticles with cubic silver structure. Elemental composition and morphology of the metallic silver was widely investigated by FESEM-EDX. 

Keywords: Urginea indica, Ag0 Nps, 4-nitrophenol, aqueous, catalysts, reduction

DOI 10.2412/mmse.64.70.791

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