Silver nanoparticles coated by Schiff base as an adsorbent of lead from polluted water.

Abstract

Synthesis of silver nanoparticles coated with Schiff base was achieved . Silver nanoparticles are reduced and coated using Schiff base. Schiff base serves as a capping to stop silver oxide from overgrowing. Schiff base produces silver nanoparticles with a novel form and a distinctive appearance. The presence of Schiff base as a reducing and capping agent can give a new shape for prepared silver nanoparticles. The structure of Schiff base was analyzed based on spectral data (1 H nuclear magnetic resonance (H1NMR), Mass spectroscopy, and Fourier-transform infrared spectroscopy (FTIR). The formation of silver nanoparticles within a surface plasmon band at 461 nm was observed using UV-Vis Spectroscopy. Silver nanoparticles with a spherical shape and a particle size between 50 and 100 nm are visible in a scanning electron microscope image. For the first time, silver nanoparticles coated with Schiff base were used to adsorb lead from a sample of polluted water. The rate of adsorption was 69%.