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Extra-cellular synthesis of silver nanoparticles using leaves of Nigella sativa
Paper ID : 2144-UFGNSM13-FULL (R2)
Authors:
Morteza AZizi *
Rahmat Blvd, Bnyhashmy Street, No. 440
Abstract:
Bio-inspired silver nanoparticles were synthesized with the aid of a novel method, using leaves of plant namely Nigella sativa. After drying of leaves in air, they were firstly sweltered in boiling distilled water and the liquid was filtered, subsequently. The resulted broth was used to reduce silver nitrate in a proper amount of pH and the related concentrations. The displayed UV–visible spectra identifies formation of silver nanoparticles, whenever the colorless initial acclimated mixture turned to brown. The centrifuged powder samples were examined using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and energy dispersive X-ray diffraction analysis (EDX) methods. The results of XRD, SEM and EDX studies clearly revealed that the final particles of precipitated powder are agglomerates of silver nanoparticles. The used green reduction method did not result in any unfavorable modifications in mineralogical compositions of Ag nanopowder. FTIR results also indicated the role of different functional groups in the synthetic process.
Keywords:
Extra-cellular ,eco-friendly ,functional groups,silver nanoparticles ,broth
Status : Paper Accepted (Poster Presentation)