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Adsorption of platinum(IV) onto composites based on silicon dioxide and vinyl acetate/1-vinylimidazole and vinyl acetate/4-vinylpyridine copolymers

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Abstract

Composite materials are synthesized using the sol–gel method involving tetraethoxysilane and vinyl acetate/1-vinylimidazole and vinyl acetate/4-vinylpyridine copolymers, and their sorption capacity with respect to platinum(IV) ions is studied. The composites exhibit the highest sorption activity at 338 K in 1 M HCl solution (sorption capacity with respect to Pt(IV) varies from 180 to 249 mg g–1). The interaction between platinum(IV) and the surface of the sorption material is a result of the chemisorption process. The Langmuir, Freundlich, and Dubinin–Radushkevich models are used to describe the nature of adsorption.

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Authors and Affiliations

  1. Irkutsk National Research Technical University, Irkutsk, 664074, Russia

    E. I. Sipkina, O. V. Lebedeva & Yu. N. Pozhidaev

  2. Favorskii Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk, 664033, Russia

    E. N. Oborina

Authors
  1. E. I. Sipkina
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  2. O. V. Lebedeva
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  3. Yu. N. Pozhidaev
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  4. E. N. Oborina
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Corresponding author

Correspondence to O. V. Lebedeva.

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Original Russian Text © E.I. Sipkina, O.V. Lebedeva, Yu.N. Pozhidaev, E.N. Oborina, 2017, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2017, Vol. 53, No. 4, pp. 388–394.

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Sipkina, E.I., Lebedeva, O.V., Pozhidaev, Y.N. et al. Adsorption of platinum(IV) onto composites based on silicon dioxide and vinyl acetate/1-vinylimidazole and vinyl acetate/4-vinylpyridine copolymers. Prot Met Phys Chem Surf 53, 657–662 (2017). https://doi.org/10.1134/S2070205117040207

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  • DOI: https://doi.org/10.1134/S2070205117040207

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