Morphological change of silver nanoparticles by the effect of synthesis parameters

Abstract

Metal nanoparticles are playing an essential role in this nano era. In the present study, silver nanoparticles(Ag NPs) were prepared by the green synthesis method from the extract of Ocimum tenuiflorum (tulasi) leaves. In the present study the morphology of silver nanoparticles was studied as a function of various synthesis conditions. Ag NPs were prepared using tulasi decoction and fresh tulasi juice. The flower like structure of Ag NPs was observed when tulasi decoction was used for the synthesis. Spherical Ag NPs formed when tulasi juice was used instead. The morphology and grain size of silver nanoparticles were obtained from SEM images. The elemental analysis of silver nanoparticles was done with EDS. The formation of Ag NPs was confirmed from the absorption spectrum. The absorption edge was observed in the range of 200-700nm.