Green Synthesis of Nanoparticles Using Medicinal plant’s Extracts and their Structural properties

Abstract

There is increasing interest in environmentally friendly synthetic methods for nanoscale materials using natural extracts, due to their potential applications in various technologies and minimal environmental impact. This study focuses on synthesizing copper ferrite (CuFe2O4) nanoparticles through a green combustion method employing natural extract surfactants such as Cinnamon zeylanicum bark powder and Aloe vera leaf extract as fuel agents. For comparison, CuFe2O4 NPs are also synthesized using a polyvidone surfactant. The structural, morphological, optical, and magnetic properties of these nanoparticles are analyzed through various techniques. X-ray diffraction patterns reveal cubic and tetragonal crystal structures when using Aloe vera leaf and polyvidone surfactants, respectively. Field-emission scanning electron microscopy (FE-SEM) images show that the green-synthesized nanoparticles are significantly smaller than those prepared with the polyvidone surfactant. Despite this size difference, the band gap values of the nanoparticles remain comparable. Hysteresis loop measurements indicate an enhanced saturation magnetization (Ms=39.63 emu/g) and reduced coercivity (Hc = 57 Oe) for nanoparticles synthesized with Aloe vera, compared to Ms=22.43 emu/g and Hc=1260 Oe for those with polyvidone surfactants.