Journal
CARBOHYDRATE POLYMERS
Volume 97, Issue 2, Pages 391-397Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2013.05.049
Keywords
Curdlan; 4-Acetamido-TEMPO; Green synthesis; Silver nanoparticles
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Funding
- Priority Acedemic Program Development (PAPD) of Jiangsu Higher Education Institutions
- China's Postdoctoral Science Fund Projects [2013M531292]
- School Foundation Financing Project of Jiangsu University [105DG129]
- Open Foundation of Jiangsu Province Key Laboratory of Physical Processing on Agricultural Products [JAPP2010-7]
- Jiangsu university undergraduate innovation project [2012097]
- Jiangsu university students' scientific research project [11A343]
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A facile, simple, and eco-friendly method using 4-acetamido-2,2,6,6-tetramethypiperidine-1-oxyl radical-oxidized curdlan (Oc) as both reducing and stabilizing agents was developed for the fabrication of silver nanoparticles (AgNPs) from silver nitrate (AgNO3). The structure, morphology, and particle size of the as-prepared AgNPs were investigated by ultraviolet-visible spectroscopy, transmission electron microscopy, energy dispersive X-ray spectrometry, X-ray diffraction, and dynamic laser light scattering. The well-dispersed AgNPs were sphere like with a mean diameter of 15 nm. Their formation was dependent on reaction duration, reaction temperature, Oc concentration, and AgNO3 concentration. Fourier transform-infrared and Raman spectra demonstrated that the as-prepared AgNPs can readily bind covalently with the carboxylate groups of Oc through the strong monodentate interaction in the reaction medium. (C) 2013 Elsevier Ltd. All rights reserved.
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