Preparation of acacia-stabilized silver nanoparticles: A green approach

We report a facile approach for the spontaneous formation of silver nanoparticles in the presence of gum acacia polymer (a natural polymer) without the addition of any typical reducing agent under mild conditions. Silver nanoparticles (~ 5 nm) have been obtained by the mixing of equal amounts of 0.5...

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Bibliographic Details
Published in:Journal of applied polymer science 2007-12, Vol.106 (5), p.3375-3381
Main Authors: Mohan, Y. Murali, Raju, K. Mohana, Sambasivudu, K, Singh, Satyendra, Sreedhar, B
Format: Article
Language:English
Subjects:
Addition polymerization
Applied sciences
Composites
Electron microscopes
Exact sciences and technology
Formations
Forms of application and semi-finished materials
gels
hydrogels
Nanoparticles
nanotechnology
networks
Polymer industry, paints, wood
Reducing agents
Reduction
Solvents
stabilization
Stabilizers (agents)
Technology of polymers
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Summary:We report a facile approach for the spontaneous formation of silver nanoparticles in the presence of gum acacia polymer (a natural polymer) without the addition of any typical reducing agent under mild conditions. Silver nanoparticles (~ 5 nm) have been obtained by the mixing of equal amounts of 0.5 wt % aqueous solutions of acacia and silver nitrate. The formation of silver nanoparticles has been confirmed with ultraviolet-visible, Fourier transform infrared, X-ray diffraction, and X-ray photoelectron spectroscopy analyses. Gum acacia polymeric chains promote the reduction process and act as good stabilizers over 5 months. To confirm the formation and stabilization of the nanoparticles, a transmission electron microscope has been employed. The advantage of this methodology is that it is possible to prepare silver nanoparticles without any organic solvents or reducing agents. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007
ISSN:0021-8995
1097-4628
DOI:10.1002/app.26979