Green Synthesis and the formation kinetics of silver nanoparticles in aqueous Inula Viscosa extract

TL;DR

This study demonstrates a green, room-temperature synthesis of stable, mono-dispersed silver nanoparticles using Inula Viscosa extract, with detailed characterization and kinetic analysis showing rapid formation within 24 hours.

Contribution

It introduces a novel eco-friendly method for producing silver nanoparticles with controlled size and stability using plant extract, and analyzes their formation kinetics.

Findings

Nanoparticles are 15±5 nm in size with face-centered cubic structure.

Formation reaches equilibrium within 24 hours following first-order kinetics.

Size and morphology are unaffected by reaction time or initial silver ion concentration.

Abstract

In this study, we present the production of silver nanoparticles in aqueous Inula Viscosa extract by the green synthesis approach at room temperature. The structural, morphological properties as well as formation kinetics of the synthesized silver nanoparticles were characterized by UV-VIS, STEM, XRD, Raman and FTIR measurements. Mono-dispersed and very stable silver nanoparticles with size of 15$\pm$5 nm and face-centered cubic crystal structure were synthesized in aqueous Inula Viscosa extract. The kinetic studies of silver nanoparticles formation in Inula Viscosa extract show that silver nanoparticle formation reaction reached the equilibrium within 24 h and fit in the first-order reaction kinetics. The results clearly show that the size of fabricated nanoparticles is independent on the dynamical formation process since the reaction time and initial silver ion concentration did not affect on size and morphology of the produced particles.