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Kinetics of silver nanoparticle growth in aqueous polymer solutions |
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| Authors: | Rita?Patakfalvi Zsanett?Virányi |
| Institution: | (1) Nanostructured Materials Research Group of the Hungarian Academy of Sciences, University of Szeged, Aradi v. t. 1, 6720 Szeged, Hungary;(2) Department of Colloid Chemistry, University of Hungarian Academy of Sciences, University of Szeged, Aradi v. t. 1, 6720 Szeged, Hungary |
| Abstract: | Silver nanoparticles were prepared in aqueous AgNO3 solution by using hydroquinone and sodium citrate as reducing agents with neutral polymers poly(vinylpyrrolidone) and poly(vinyl alcohol) as stabilizers. The rate of particle formation was determined with a diode array UV-Vis spectrophotometer. The effects of the polymer concentration on the reaction rate, the size, and the size distribution of the particles formed were studied by transmission electron microscopy. Both the reaction rate and the size of silver nanoparticles decreased with increasing polymer concentration in the range 0.07–0.50 w/v%. |
| Keywords: | Silver nanoparticles UV-Vis spectroscopy Stabilization by polymers TEM |
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