Photochemical Conversion of Silver Cations into Nanoparticles of Different Morphologies in Aqueous Solutions of Sodium Citrate

A new method has been proposed for photochemical reduction of silver cations into nanoparticles (NPs) of varying morphologies in aqueous solutions of sodium citrate. The silver NPs were prepared from silver nitrate by the citrate method in aqueous solutions at room temperature by irradiating with light of a high-pressure mercury lamp DRK 120 and BUV 15 lamp. The conversion of silver cations into the final silver NPs of varying morphologies is determined by the concentration of the initial components of the irradiated mixture, light wavelength, and exposure time.