Hydroquinone Synthesis of Silver Nanoparticles from Silver Bromide Suspensions

Abstract

The results of research into the preparation of silver nanoparticles using photoreduction in the presence of hydroquinone as the reductant were discussed. Substrates for the synthesis of silver nanoparticles were ultrafine crystalline gelatine-stabilised aqueous suspensions of silver bromide. The influence of the reductant to substrate molar ratio and the medium's pH to the efficient production of silver nanoparticles were studied. The properties of resultant silver particles were examined using UV-Vis spectroscopy. Transmission electron microscopy was used for the photomicrography of silver nanoparticles suspensions.

Nanoparticle photochemistry via nano-impacts

“…More recently however, the chemical conversion of spherical NPs was achieved whilst maintaining the spherical structure of the pre-cursor NP. This novel synthesis method has been realised through the photochemical reduction of gelatine stabilised silver bromide (AgBr) NPs to silver (Ag) NPs [12,13]. This new and attractive direction for the synthesis of NPs opens new avenues for NP design.…”