Green synthesis of silver nanoparticles using seed aqueous extract of Olea europaea

Biosynthesis of silver nanoparticles with small size and biostability is very important and used in various biomedical applications. In the present work, we describe the synthesis of silver nanoparticles (Ag-NPs) using seed aqueous extract of Olea europaea (Oe) and its antibacterial activity. UV–visible spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and X-ray energy dispersive spectrophotometer (EDAX) were performed to ascertain the formation of Ag-NPs. It was observed that the growths of Ag-NPs are stopped within ۳۵ min of reaction time. The synthesized Ag-NPs were characterized by a peak at ۴۴۹ nm in the UV–visible spectrum. XRD confirmed the crystalline nature of the nanoparticles of ۳۴ nm size. The XRD peaks at ۳۸°, ۴۴°, ۶۴° and ۷۷° can be indexed to the (۱ ۱ ۱), (۲ ۰ ۰), (۲ ۲ ۰) and (۳ ۱ ۱) Bragg’s reflections of cubic structure of metallic silver, respectively. The results confirmed that the (Oe) is a very good eco friendly and nontoxic source for the synthesis of Ag-NPs as compared to the conventional chemical/physical methods.

کلیدواژه ها:

Silver nanoparticles ، Green Chemistry ، Scanning Electron Microscopy (SEM) ، Olea Europaea ، X-ray diffraction (XRD)