Eco-Friendly Production of Leaf Extract-Mediated Silver Nanoparticles: Surface Structure and Optical Characteristics

Abstract Several advanced methods have been utilized to develop high quality and innovative nanomaterials for applications in nanoscience and nanotechnology. Among these, the green synthesising of silver nanoparticles (AgNPs) has become a favored approach to synthesis shell structure and unique features of NPs due to its cost effectiveness, easy controlled and sustainability, compatibility, free of toxic chemical and contaminations. In this study, AgNPs were produced through the reduction of silver nitrate using freshly prepared chickpea leaf extract, which served as both a reducing and stabilizer agent. The bioactive compounds present in the leaf extract efficiently reduce silver ions, resulting in the development of shell structure AgNPs. several analytical techniques, such as UV Vis spectroscopy, X ray diffraction (XRD), and field emission scanning electron microscopy (FE SEM) were used to determine the optical, structural, and surface properties of the AgNPs synthesized using leaf extract. The absorption spectrum AgNPs exhibited a distinct surface Plasmon resonance (SPR) peak near 401 nm with an energy bandgap of 2.28 eV. XRD analysis indicated diffraction patterns corresponding to a cubic crystal structure with average crystallite size of 25.3 nm. The surface topography FESEM results a revealed a uniform structure and nearly spherical particle shape with an average size approximately of 25 nm. Therefore, AgNPs synthesized using leaf extract present significant potential for various photonic and biosensor applications.