Green Synthesis of Silver and Magnetite Nanoparticles Using Cleome Heratensis (Capparaceae) Plant Extract

Abstract

In recent decades, development of green and reliable processes for synthesis of metallic nanoparticles is inevitable because of their important applications in all fields of science, especially in nanotechnology and industry. Biological systems have received great attentions from scientist due to low cost, green nature and simple process for the synthesis of metallic NPs. In this research, metal nanoparticles, Ag and Fe3O4 NPs were synthesized through an ecofriendly and cost effective approach using aqueous extract of Cleome heratensis (C. heratensis). The influence of effective parameters including pH, interaction time, temperature, plant extract concentration, and Ag concentration were thoroughly investigated base on surface plasmon resonance (SPR) for Ag NPs at max  470 nm. The bio-synthesized NPs were characterized by FTIR, UV-Vis, XRD, TEM and VSM analyses. The TEM images showed the size of silver and magnetite nanoparticles as 12.27 and 14.12 nm, respectively, with a homogeneous distribution and nearly spherical in shape.