Poly[N,N'-bis(3-silsesquioxanyl propyl)thiocarbamide]/Poly-2-methyl-5-vinylpyridine Composite for Extraction of Platinum(IV)

Poly[N,N'-bis(3-silsesquioxanyl propyl)thiocarbamide]/Poly-2-methyl-5-vinylpyridine Composite for Extraction of Platinum(IV)

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 extra...

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Veröffentlicht in:Protection of metals and physical chemistry of surfaces 2019, Vol.55 (1), p.89-94
Hauptverfasser: Lebedeva, O. V., Sipkina, E. I., Bochkareva, S. S., Pozhidaev, Yu. N.
Format: Artikel
Sprache:eng
Schlagworte:
Adsorbents
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coatings
Corrosion and Coatings
Hydrochloric acid
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials
Materials Science
Metallic Materials
New Substances
Platinum
Tribology
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Beschreibung
Zusammenfassung: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 cm 3 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.
ISSN:2070-2051
2070-206X
DOI:10.1134/S2070205119010131