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

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...

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Bibliographic Details
Published inProtection of metals and physical chemistry of surfaces Vol. 53; no. 4; pp. 657 - 662
Main Authors Sipkina, E. I., Lebedeva, O. V., Pozhidaev, Yu. N., Oborina, E. N.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2017
Springer Nature B.V
Subjects
Adsorption
Characterization and Evaluation of Materials
Chemical synthesis
Chemistry and Materials Science
Composite materials
Copolymers
Corrosion and Coatings
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Metallic Materials
Physicochemical Processes at the Interfaces
Platinum
Polymer matrix composites
Silicon dioxide
Sol-gel processes
Sorption
Surface chemistry
Tetraethyl orthosilicate
Tribology
Vinyl acetate
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Summary: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.
ISSN:2070-2051
2070-206X
2070-206X
DOI:10.1134/S2070205117040207