Biosynthesis of silver nanoparticles using Lantana camara flower extract and its application

Search of new pigment for the green synthesis of nanoparticles has emerged new scope for the chemist. In this report, we describe the synthesis of silver nanoparticles (AgNPs) using notorious weed, Lantana camara L. flower extract. The AgNPs were characterized by visual, UV-visible spectrophotometer, transmission electron microscopy (TEM), dynamic light scattering and X-ray diffraction (XRD). UV-visible spectroscopy showed surface plasmon resonance at 470 nm clearly reveals the formation of AgNPs. TEM analysis confirmed that the AgNPs are spherical and 33 +/- A 5 nm average sized. XRD analysis reveals the formation of pure silver metal with face-centered cubic symmetry and confirms crystalline nature. The AgNPs showed significant antioxidant efficacy at different time intervals against 1,1-diphenyl-2-picrylhydrazyl and photocatalytic activities by the degradation of the methylene blue. From the results obtained, it is suggested that surface-modified AgNPs could be used effectively in future biotechnology concerns. [GRAPHICS]