Sorption of meso-Phenylporphyrin Iodide on Polystyrene–Bentonite Film Composites

Modification of polystyrene (PS) with bentonite was carried out, and film materials with improved sorption properties toward macroheterocyclic compounds were obtained. It has been shown that the efficiency of adsorption of meso -phenylporphyrin iodide on the PS–bentonite composite is increased three...

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Bibliographic Details
Published in:Protection of metals and physical chemistry of surfaces 2021, Vol.57 (1), p.30-36
Main Authors: Alekseeva, O. V., Rodionova, A. N., Syrbu, S. A., Bagrovskaya, N. A., Noskov, A. V.
Format: Article
Language:English
Subjects:
Adsorption
Bentonite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Corrosion and Coatings
Industrial Chemistry/Chemical Engineering
Infrared spectroscopy
Inorganic Chemistry
Materials Science
Metallic Materials
Physicochemical Processes at the Interfaces
Polymer matrix composites
Polystyrene resins
Porphyrins
Sorption
Tribology
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Summary:Modification of polystyrene (PS) with bentonite was carried out, and film materials with improved sorption properties toward macroheterocyclic compounds were obtained. It has been shown that the efficiency of adsorption of meso -phenylporphyrin iodide on the PS–bentonite composite is increased threefold compared to unmodified polymer. The kinetics of porphyrin adsorption was described by the reaction equations of the pseudo-first and pseudo-second order. It was revealed by IR spectroscopy that the adsorption of meso -phenylporphyrin iodide on the PS–bentonite composite occurs as a result of the donor–acceptor interaction of the porphyrin reaction centers with the oxygen-containing groups of the composite.
ISSN:2070-2051
2070-206X
DOI:10.1134/S2070205121010044