Abstract
Silver-containing nanocomposites synthesized from the compounds of a humic series have been studied using modern physical–chemical methods (EPR, TEM, IR and XRD, etc.). It is shown that the humic substances with different functional groups and isolated from different sources have also different ability of stabilizing the silver nanoparticles. Long-term stable nanoparticles and silver clusters have been found. A multiplet, observed in the EPR spectra of silver-containing nanocomposites, which are obtained from humic substances isolated from therapeutic muds and shales, is assigned to the formed Agn nanoclusters. Formation of the silver molecular clusters depends on the kind of humic substances and depth of their decomposition.
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Acknowledgment
This work was supported by the President Grant of Russian Federation (Grant MK-7149.2016.3). The authors are grateful to the Baikal Analytical Center for the special measurements.
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Khutsishvili, S.S., Vakul’skaya, T.I., Aleksandrova, G.P. et al. Stabilized Silver Nanoparticles and Nanoclusters Agn in Humic-Based Bioactive Nanocomposites. J Clust Sci 28, 3067–3074 (2017). https://doi.org/10.1007/s10876-017-1281-2
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DOI: https://doi.org/10.1007/s10876-017-1281-2