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- Title
Redox reactions of arabinogalactan with silver ions and formation of nanocomposites.
- Authors
Grishchenko, L. A.; Medvedeva, S. A.; Aleksandrova, G. P.; Feoktistova, L. P.; Sapozhnikov, A. N.; Sukhov, B. G.; Trofimov, B. A.
- Abstract
Formation of silver nanoparticles in the course of chemical reduction of AgNO3 with arabinogalactan in aqueous alkaline solution was studied by electronic absorption spectroscopy and X-ray diffraction analysis. The pH of the solution was found to be the major factor affecting the degree of reduction of Ag+ ions. The probable reaction mechanism was discussed. Composites containing up to 58% Ag, with the metal particle size of 7–16 nm, were prepared. The nanoparticle size can be controlled by varying the reactant ratio AgNO3: arabinogalactan. Chemical modification of arabinogalactan was confirmed by IR and 13C NMR spectroscopy and by TLC.
- Subjects
OXIDATION-reduction reaction; NANOPARTICLES; CHEMICAL reduction; IONS; ABSORPTION spectra; X-rays
- Publication
Russian Journal of General Chemistry, 2006, Vol 76, Issue 7, p1111
- ISSN
1070-3632
- Publication type
Article
- DOI
10.1134/S1070363206070189