A comparative study of gamma, electron beam, and synchrotron X-ray irradiation method for synthesis of silver nanoparticles in PVP
نویسندگان
چکیده
A one-pot synthesis method has been developed for preparation of silver nanoparticles in aqueous poly (vinyl pyrrolidone) (PVP) solution by synchrotron X-ray radiation. The hydrated electrons (eaqˉ) and hydrogen atom radical (H·), products of radiolysis of water molecules by synchrotron X-rays brings about the reduction of the metal ions, resulting in homogeneous nucleation and nanoparticle formation. The nanoparticles were characterized by UV-visible spectroscopy and TEM analysis. A comparative study has been done to know the effectiveness of this synthesis method with that of gamma and EBirradiation methods. In gamma radiation method the nanoparticle size obtained was 8nm, whereas in synchrotron X-ray irradiation 1015nm particles were obtained. Smaller size particles with narrow size distribution were obtained by -radiolysis and EBirradiation than those obtained by X-ray radiolysis. The effects of different experimental parameters, such as concentration of Ag + , PVP concentration on nanoparticle formation were studied. Copyright © 2013 VBRI press.
منابع مشابه
Effects of protective agents (PVA & PVP) on the formation of silver nanoparticles
In this study silver/poly vinyl alcohol (PVA) and silver/poly vinyl pyrrolidone (PVP) Nanocomposites were prepared via reduction of silver salt by employing DMF (N, N`- dimethyl formamide) as a reducing agent. Effects of protective agents such as PVA and PVP were also described here. We show that the acidic pH of PVP solution also affects the interaction between protective agents and silver nan...
متن کاملGamma irradiation induced surface modification of silk fabrics for antibacterial application
Silk fabrics were modified by a treatment of silver nitrate solution (AgNO3) and polyvinylpyrrolidone (PVP) as a stabilizer then exposure to γ-irradiation to create antibacterial properties. Effects of the absorbed dose on treated fabrics were investigated. The scanning electron microscopy (SEM) and X-ray diffraction (XRD) patterns were used to confirm the presence of silver nanoparticles (AgNP...
متن کاملComparative Study on Silver Nanoparticles Properties Produced by Green Methods
In the present study, properties of silver nanoparticles (AgNPs) such as average size, size distribution andmorphology were investigated by Tollens, polysaccharide, modified polysaccharide and microbial methods.The synthesized AgNPs were characterized by UV-visible spectroscopy, scanning electron microscopy(SEM), transmission electron microscopy (TEM), dynamics light scatterin...
متن کاملSynthesis Silver Nanoparticles by Recovery Silver from Anode Slime of Kerman Sarcheshmeh Cooper Complex
According to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of Cu, Ag, Au, Pb and Se. In this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. Silver was separated from anode slime by using of HNO3 and HCl. X-Ray fluorescence spectroscopy (XRF) was used to characterize anode sl...
متن کاملSynthesis Silver Nanoparticles by Recovery Silver from Anode Slime of Kerman Sarcheshmeh Cooper Complex
According to circumstance of kerman sarcheshmeh cooper complex that its anode slime is mainly consisted of Cu, Ag, Au, Pb and Se. In this work, recovery of silver from anode slime and subsequent synthesis of silver nanoparticles from leaching solution was made. Silver was separated from anode slime by using of HNO3 and HCl. X-Ray fluorescence spectroscopy (XRF) was used to characterize anode sl...
متن کامل