Eco-Friendly Method for Green Recovery of Silver Nano Particles from Effluent Fixer Solution through interacting with Q. brantii (Oak) Peel Hydro Alcoholic Extract

Silver nano particles (AgNPs) are gaining in popularity for their strong antimicrobial activity, low toxicity towards humans. Despite various methods are used for recovery of metallic silver from its waste solutions, none of them consider the synthesis of silver nano particles. Biological synthesis of nanoparticles is a relatively new emerging field of nanotechnology. Different biological methods are gaining recognition for producing of silver nanoparticles (Ag-NPs), but in all of these methods, standard solution of AgNO3 is used as precursor of silver. In this study fixer effluent solution as primary source of silver and Q. brantii (Oak) peel hydro alcoholic extract as a bio-reducing and bio-capping agent were used. In this method no need to chemical and in compliance with principles of green chemistry. The best conditions of reaction such as mixing ratio of waste to Oak extract, pH, temperature, time period and concentration were investigated by evaluation obtained Ag NPs by UV-Visible and FT-IR spectroscopy, DLS technique, SEM and XRD