Sorption of Zinc Cations by Modified Humic Acids
N. V. MALYSHENKO1, S. I. ZHEREBTSOV1, O. V. SMOTRINA1, L. V. BRYUKHOVETSKAYA1, and Z. R. ISMAGILOV1,2
1Institute of Coal Chemistry and Material Science, Siberian Branch of the Russian Academy of Sciences, Sovetskiy Pr.18, Kemerovo 650000 (Russia)
2Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
Keywords: нативные и модифицированные гуминовые кислоты, сорбция катионов цинка, емкость, ионный обмен, native and modified humic acids, sorption of zinc cations, capacity, ion exchange
Abstract
Sorption of zinc cations by native and H2O2 modified humic acids obtained from brown coal of the Tisul deposit of Kansk-Achinsk coal basin was studied using IR Fourier, EPR, 13С NMR spectroscopy in the solid state. It was demonstrated that sorption proceeds according to ion exchange mechanism. Modification of humic acids causes an increase in sorption capacity by a factor of 2−4.
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