title: Phytosynthesis of silver nanoparticles using Coccinia grandis leaf extract and its application in the photocatalytic degradation.
abstract: Silver nanoparticles were successfully synthesized from aqueous AgNO(3) through a simple green route using the leaf extract of Coccinia grandis as a reducing as well as capping agent. The results obtained from UV-vis spectrum, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and Fourier-transform infra red spectroscopy (FTIR) and high-resolution transmission electron microscopy (HRTEM) revealed that the biosynthesis of silver nanoparticles were in the size range of 20-30 nm and is crystallized in face centered cubic symmetry. Further, the thermal stability of nanoparticles was studied using thermo gravimetric analyzer (TGA) and differential scanning calorimeter (DSC). Photocatalytic property of the Ag nanoparticles was investigated by degradation of Coomassie Brilliant Blue G-250 under UV light. The results show that Ag nanoparticles have suitable activity for the degradation of Coomassie Brilliant Blue G-250.
authors.affiliation: Department of Biotechnology, CSIR-Central Leather Research Institute, Chennai, India.
authors.forename: Rajeswari
authors.initials: R
authors.lastname: Arunachalam
authors.forename: Sujatha
authors.initials: S
authors.lastname: Dhanasingh
authors.forename: Balasaraswathi
authors.initials: B
authors.lastname: Kalimuthu
authors.forename: Mani
authors.initials: M
authors.lastname: Uthirappan
authors.forename: Chellan
authors.initials: C
authors.lastname: Rose
authors.forename: Asit Baran
authors.initials: AB
authors.lastname: Mandal
mesh_terms: D019662:Cucurbitaceae / Q000737:chemistry*; D055772:Green Chemistry Technology; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008855:Microscopy, Electron, Scanning; D010084:Oxidation-Reduction; D010316:Particle Size; D010782:Photolysis; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*; D012394:Rosaniline Dyes / Q000737:chemistry; D012835:Silver Nitrate / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013818:Thermogravimetry; D014466:Ultraviolet Rays; D018508:Water Purification; D014961:X-Ray Diffraction
chemical_list: D010936:Plant Extracts; D012394:Rosaniline Dyes; D012835:Silver Nitrate; C004692:coomassie Brilliant Blue