title: Green synthesis, spectroscopic investigation and photocatalytic activity of lead nanoparticles.
abstract: Most of researcher focused their research towards synthesize of nanoparticles by the method of applied chemical method which was one of the costliest method. We have focused cheapest and simplest method for the synthesizing of lead nanoparticles (Pb-NPs) using cocos nucifera L extract. The methanolic extract of cocos nucifera L was efficiently used as a reducing agent for synthesizing Pb-NPs. On treatment of lead acetate with cocos nucifera coir extracts, stable Pb-NPs were formed. The synthesized Pb-NPs were further confirmed by UV-visible spectroscopy, X-ray diffraction (XRD), Transmission electron microscope (TEM) and Energy Dispersive (EDAX) analysis. The secondary metabolites present in methanolic extract which can mainly act as a reducing and capping agents for the formation of Pb-NPs were identified by GC-MS. Anti-microbial activity for Pb-NPs against four pathogenic strain's such as Staphylococcus aureus, Escheria coli, Staphylococcus epidermis and Bacillus subtilis. Result states that Pb-NPs size was 47 nm and also shows good activity against S. aureus. Further we report on photocatalytic absorption of malachite green dye processed in short UV wavelength at 254 nm. UV spectral analysis showed peak absorbance at 613 nm with special reference to the excitation of surfaces plasmon vibration by Pb-NPs.
authors.affiliation: Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632 014, Tamilnadu, India.
authors.forename: Ganesh
authors.initials: G
authors.lastname: Elango
authors.affiliation: Chemistry Research Laboratory, Organic Chemistry Division, School of Advanced Sciences, VIT University, Vellore 632 014, Tamilnadu, India. Electronic address: mohanaroopan.s@gmail.com.
authors.forename: Selvaraj Mohana
authors.initials: SM
authors.lastname: Roopan
mesh_terms: D001419:Bacteria / Q000187:drug effects; D002384:Catalysis / Q000528:radiation effects; D008401:Gas Chromatography-Mass Spectrometry; D055772:Green Chemistry Technology / Q000379:methods*; D007854:Lead / Q000737:chemistry* / Q000494:pharmacology; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008826:Microbial Sensitivity Tests; D010316:Particle Size; D013052:Spectrometry, X-Ray Emission; D013056:Spectrophotometry, Ultraviolet; D013997:Time Factors; D014466:Ultraviolet Rays; D014961:X-Ray Diffraction
chemical_list: D007854:Lead
keywords: Anti-microbial activity; Cocos nucifera L; Lead nanoparticles; Photocatalytic activity; Secondary metabolites; Short UV