Switchgrass (Panicum virgatum) Extract Mediated Green Synthesis of Silver Nanoparticles

Cynthia Mason, Singaravelu Vivekanandhan, Manjusri Misra, Amar Kumar Mohanty

School of Engineering, Thornborough Building, University of Guelph, Guelph, Canada.

DOI: 10.4236/wjnse.2012.22008                

Abstract

A novel switchgrass (Panicum virgatum) extract mediated green process was demonstrated for the synthesis of silver nanoparticles from silver nitrate solution at ambient temperature. UV-visible spectroscopic analysis indicates the rapid reduction of silver (Ag⁺) ions by swithgrass extract. The silver nanoparticles began to form at 15 min and the reduction reaction was completed within 2 hours. Synthesized silver nanoparticles were subjected to x-ray diffraction (XRD) for structural characterization, which confirms the FCC symmetry of silver nanoparticles with the lattice parameter of 4.0962 ?. The particle size of bio-synthesized silver nanoparticles was identified through transmission electron microscopic (TEM) analysis and found to be in the range of 20 - 40 nm.

Keywords

Panicum virgatum; Biosynthesis; Silver Nanoparticles

Conflicts of Interest

The authors declare no conflicts of interest.

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