Abstract
The sorption of cetylpyridinium on Na-vermiculite has been studied by the adsorption, calorimetry, and X-ray diffraction methods. The ion-exchange component of cetylpyridinium sorption on Na-vermiculite has been distinguished and analyzed. Variations in the integral heat of ion exchange of cetylpyridinium cations on Na-vermiculite have been determined as depending on the amount of absorbed cetylpyridinium by the calorimetry method. X-ray diffraction analysis of cetylpyridinium-Na-vermiculite organomineral complexes with different contents of exchange cations has been carried out in parallel. The formation of monolayer (interlayer spacing Δd = 20.25 Å) and bilayer (Δd = 37.27 Å) intercalation structures with a tilt angle of cetylpyridinium ions to the silicate basal surface of ≈57° has been revealed.
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Original Russian Text © Yu.I. Tarasevich, D.A. Krysenko, V.E. Polyakov, V.Ya. Demchenko, 2013, published in Kolloidnyi Zhurnal, 2013, Vol. 75, No. 5, pp. 662–666.
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Tarasevich, Y.I., Krysenko, D.A., Polyakov, V.E. et al. A study of cetylpyridinium cation sorption on Na-vermiculite. Colloid J 75, 606–610 (2013). https://doi.org/10.1134/S1061933X13040157
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DOI: https://doi.org/10.1134/S1061933X13040157