Synthesis of dispersed and stabilized silver nanoparticles in acidic media

被引：0
作者：
Ayman M. Atta
H. A. Allohedan
A. O. Ezzat
Z. A. Issa
机构：
[1] King Saud University,Surfactant Research Chair, Chemistry Department, College of Science
来源：
Polymer Science Series B | 2014年 / 56卷
关键词：
Silver Nanoparticles; Transmission Electron Microscopy Image; Polymer Science Series; Vinyl Pyrrolidone; Monomethyl Ether;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The present work aims to prepare citrate-reduced silver particles (AgNPs) coated with poly(vinyl pyrrolidone) (PVP) and modified polyethylene thiol monomethylether. Modified AgNPs derivatives were exposed to synthetic human stomach fluid (SSF) (pH 1.5) and changes in size, shape, hydrodynamic diameter and chemical composition were determined during a 1 hour exposure period using UV-Vis, high resolution transmission electron microscopy/energy dispersive X-ray spectroscopy (TEM/EDS), dynamic light scattering (DLS) and X-ray powder diffraction (XRD) combined with Rietveld analysis. Exposure of AgNPs to SSF produced stabilized SPR peak at 414 nm which changed according to the exposure time and the conditions of preparation of AgNPs. Changes in aggregation and morphology of the particles were also observed as well as production of silver chloride which appeared physically associated with particle aggregates. The XRD data indicated that the there is no any silver oxide (Ag2O) particles formed or aggregated with silver nanoparticles.
引用
收藏
页码：762 / 769
页数：7
相关论文
共 141 条
[1]  
Liau S Y(1997)undefined Lett. Appl. Microbiol. 25 279-undefined
[2]  
Read D C(2010)undefined Chem. Mater. 22 4548-undefined
[3]  
Pugh W J(2008)undefined Inhalataion Toxicol. 20 575-undefined
[4]  
Furr J R(2006)undefined J. Colloid Interface Sci. 303 415-undefined
[5]  
Russell A D(2004)undefined Langmuir 20 6626-undefined
[6]  
Kittler S(1997)undefined Chem. Mater. 9 950-undefined
[7]  
Greulich C(2003)undefined J. Am. Chem. Soc. 125 14280-undefined
[8]  
Diendorf J(1999)undefined J. Phys. Chem. B 103 9533-undefined
[9]  
Koller M(2003)undefined Nano Lett. 3 1565-undefined
[10]  
Epple M(2005)undefined Chem. Mater. 17 856-undefined
12345678910