Abstract
A new composite adsorbent was obtained by hydrolytic polycondensation of N,N'-bis(3-triethoxysilyl propyl)thiocarbamide in the presence of poly-2-methyl-5-vinylpyridine. The sorption activity of the composite toward platinum(IV) ions was studied in hydrochloric acid solutions. The maximum extraction efficiency of Pt (IV) and the maximum values of sorptive capacity (218 mg g–1) and coefficient of interphase distribution (7090 cm3 g–1) of the studied adsorbent in 1 М solution of HCl were found at 338 K. The Langmuir, Freundlich, and Dubinin–Radushkevich models were used to describe adsorption nature.
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ACKNOWLEDGMENTS
This work was financially supported in the framework of a state order for universities and scientific institutions, project no. 10.5737.2017/6.7.
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Lebedeva, O.V., Sipkina, E.I., Bochkareva, S.S. et al. Poly[N,N'-bis(3-silsesquioxanyl propyl)thiocarbamide]/Poly-2-methyl-5-vinylpyridine Composite for Extraction of Platinum(IV). Prot Met Phys Chem Surf 55, 89–94 (2019). https://doi.org/10.1134/S2070205119010131
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DOI: https://doi.org/10.1134/S2070205119010131