Abstract
Carbon sorbents obtained from cannel coal of the Leninsk-Kuznetskii coal field are investigated by EPR spectroscopy. It is established that the sorption capacity of activated carbons by silver increases as the concentration of paramagnetic centers increases, and both parameters are peaked at the activation temperature of ∼900°C. As the sorption surface, the polyconjugated aromatic system with a delocalized unpaired electron is suggested.
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Original Russian Text © O.I. Randin, T.Yu. Afonina, V.I. Dudarev, N.Yu. Moskaeva, Yu.S. Syrykh, 2008, published in Izvestiya VUZ. Tsvetnaya Metallurgiya, 2008, No. 4, pp. 22–26.
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Randin, O.I., Afonina, T.Y., Dudarev, V.I. et al. The nature of active centers during sorption of cyanide complexes of noble metals on carbon sorbents. Russ. J. Non-ferrous Metals 49, 237–240 (2008). https://doi.org/10.3103/S1067821208040044
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DOI: https://doi.org/10.3103/S1067821208040044