Green synthesis of bimetallic nanoparticles from green tea leaf extract

Abstract

Zero-valent iron could effectively treat many different types of pollutants in the environment, such as chlorine organic compounds, heavy metals and some other inorganic substances. The combination of a metal catalyst with iron was increased the efficiency of pollutant removal, especially persistent organic compounds (POPs). Sustainable, environmentally friendly nanosynthetic methods were gaining more and more attention. In this sutdy, a method using non-toxic chemicals, environment-friendly solvents, simple process was decribes. Bimetallic nano materials Fe/Ni, Cu/Ni were synthesied by using green tea leaf extract in water solvent. In which, the mass of metal nanoparticles was formed the most at the second iron/metal salt molar ratio of 3:1. The optimal conditions for the synthesis of materials were: 12h time, 50 ^oC temperature, neutral pH.