Abstract
We chemically modified the surface of kaolinite with nanoclusters of aluminum hydroxo cations. We have determined their composition and sizes. We have used IR spectroscopy to establish the interaction between the carbonyl and β-diketone groups of fulvic and humic acids with the Lewis acid sites: coordination unsaturated Al3+ cations of the Al13 nanoclusters. We have obtained spectral evidence for hydrogen bond formation between the carboxyl groups of fulvic acid and the hydroxyl groups of the aluminum hydroxo cations.
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Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 41, No. 1, pp. 45–49, January–February, 2005.
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Tarasevich, Y.I., Luk’yanova, V.V. & Tel’biz, G.M. Interaction of humic and fulvic acids with nanoclusters of aluminum hydroxo cations on the surface of kaolinite according to IR spectroscopy data. Theor Exp Chem 41, 48–52 (2005). https://doi.org/10.1007/s11237-005-0021-0
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DOI: https://doi.org/10.1007/s11237-005-0021-0