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Investigation of acid-base and sorption properties of surface of metal–ceramic composites

  • Sorption and Ion Exchange Processes
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Abstract

The acid-base properties of the surface of composites based on boron, silicon, and sialon nitrides were investigated by the indicator method of Hammett and Tanabe with spectrophotometric indication. Identification of the surface sites of the composites under study was carried out. On the surface of composites based on boron and sialon nitrides the Lewis base sites dominate, while on the surface of samples based on silicon nitride the Brønsted acid sites. Sorption of dyes and oxalic acid by cermet materials was studied. It is shown that the adsorption activity depends on the nature and amount of surface active sites of the composites.

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Authors and Affiliations

  1. Tomsk State University, pr. Lenina 36, Tomsk, 634050, Russia

    L. N. Skvortsova, T. S. Minakova & M. V. Sherstoboeva

  2. Department of Structural Macrokinetics, Tomsk Scientific Centre, Siberian Branch of Russian Academy of Sciences, Akademicheskii pr. 10/4, Tomsk, 634055, Russia

    L. N. Chukhlomina

Authors
  1. L. N. Skvortsova
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  2. L. N. Chukhlomina
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  3. T. S. Minakova
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  4. M. V. Sherstoboeva
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Correspondence to L. N. Skvortsova.

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Original Russian Text © L.N. Skvortsova, L.N. Chukhlomina, T.S. Minakova, M.V. Sherstoboeva, 2017, published in Zhurnal Prikladnoi Khimii, 2017, Vol. 90, No. 8, pp. 1014−1019.

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Skvortsova, L.N., Chukhlomina, L.N., Minakova, T.S. et al. Investigation of acid-base and sorption properties of surface of metal–ceramic composites. Russ J Appl Chem 90, 1246–1251 (2017). https://doi.org/10.1134/S1070427217080092

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  • DOI: https://doi.org/10.1134/S1070427217080092

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