The role of tannic acid and sodium citrate in the synthesis of silver nanoparticles

• DOI: 10.1007/s11051-017-3973-9
• Publication Date: 2017-08-03T19:15:49Z
• Authors: Katarzyna Ranosze...; Emilia Tomaszewska; Ewelina Socha; Pawel Krzyczmonik; Anna Ignaczak; Piotr Orlowski; Małgorzata Krzyzo...; Grzegorz Celichowski; Jaroslaw Grobelny
• Keywords: Tannic acid; Sodium citrate; Dispersity; Silver nanoparticle; Silver nitrate; Sodium borohydride

We describe herein the significance of a sodium citrate and tannic acid mixture in synthesis spherical silver nanoparticles (AgNPs). Monodisperse AgNPs were synthesized via reduction nitrate using two chemical agents: acid. The shape, size distribution particles determined by UV-Vis spectroscopy, dynamic light scattering (DLS) scanning transmission electron microscopy (STEM). Special attention is given to understanding experimentally confirming exact role reagents (sodium present reaction mixture) AgNP synthesis. oxidation potentials silver, their mixtures cyclic voltammetry. Possible structures its adducts with citric investigated aqueous solution performing computer simulations conjunction semi-empirical PM7 method. lowest energy found from preliminary conformational search are shown, strength interaction between molecules was calculated. compounds on surface identified FT-IR results compared IR spectrum theoretically calculated PM6 methods. obtained clearly indicate that combined use produces monodisperse AgNPs, as it allows control nucleation, growth stabilization process. Graphical abstractᅟ.