Novel, green and low cost synthesis of Ag nanoparticles with superior adsorption and solar based photocatalytic activity

Abstract

In this article we reported a new and green method for synthesis of Ag nanoparticles based on anbarnesara. Anbarnesa derived from female donkeys and its antioxidant effects have been well-known. Since this synthesis method is very simple, environmental friendly and high crop production, therefore this method can be scaled up for synthesis of metal nanoparticles. Ag nanoparticles were characterized using UV–Vis, FTIR, X-ray diffraction (XRD) and field emission scanning electron microscope (FESEM) methods. FESEM analysis showed the average particle size of 35 nm as well as revealed their morphology. The produced Ag nanoparticles show high adsorption ability for removing of methylene blue as a model of dye pollutants. The adsorption of methylene blue obeys from Langmuir model. The kinetic of adsorption is predicted by the pseudo second order model with rate constant 0.02 (g/mg.min). Moreover this new nanoparticle showed a photocatalytic activity for degradation of methylene blue under sun light. Therefore, this new silver nanoparticle is a promising green material to remove MB from wastewater. The present study aims to provide a green and low cost synthesis method for preparation of Ag nanoparticles with high adsorption and photocatalytic activity.