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Published in: Journal of Nanoparticle Research 12/2011

01-12-2011 | Research Paper

A simple method for the preparation of colloidal polymer-supported silver nanoparticles

Authors: Carmen Racles, Iuliana Stoica, Florica Doroftei, Vasile Cozan

Published in: Journal of Nanoparticle Research | Issue 12/2011

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Abstract

Polysulfone−silver composite nanoparticles have been prepared by combining polymer nanoprecipitation and redox synthesis of silver, in the presence of a glucose-modified cyclosiloxane as stabilizing agent. Based on previous kinetic investigations and on model reactions, we concluded that the reducing agent in this case is the tetrahydrofuran (THF) used as solvent for polysulfone. Dynamic light scattering measurements on the obtained polymer-silver composite particles indicated particle average diameter of 176 nm with a polydispersity index of 0.25. The UV–vis spectrum exhibited the silver plasmon resonance. By different microscopic methods (atomic force microscopy—AFM, high resolution transmission electron microscopy—HRTEM, and scanning electron microscopy—SEM), larger polymer particles coated with silver nanoprticles were observed. The Energy Dispersive X-Ray analysis—EDX; confirmed the presence of Ag on the surface of the particles, while the selected area electron diffraction showed single crystalline silver nanospheres with face-centered cubic structure.

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Metadata
Title
A simple method for the preparation of colloidal polymer-supported silver nanoparticles
Authors
Carmen Racles
Iuliana Stoica
Florica Doroftei
Vasile Cozan
Publication date
01-12-2011
Publisher
Springer Netherlands
Published in
Journal of Nanoparticle Research / Issue 12/2011
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-011-0608-4

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