Sorption of Methylene Blue on Ethylcellulose–Bentonite Film Composites

The sorption activity of ethylcellulose–bentonite composites toward methylene blue has been studied. It has been determined that the degree of recovery of the dye with the composites increases by a factor of 2.5 as compared to unmodified polymer along with a significant decrease in the equilibrium t...

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Published in:Protection of metals and physical chemistry of surfaces 2020-03, Vol.56 (2), p.256-261
Main Authors: Alekseeva, O. V., Rodionova, A. N., Bagrovskaya, N. A., Noskov, A. V., Agafonov, A. V.
Format: Article
Language:English
Subjects:
Bentonite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Corrosion and Coatings
Dyes
Ethyl cellulose
Industrial Chemistry/Chemical Engineering
Infrared spectroscopy
Inorganic Chemistry
Linear equations
Materials Science
Metallic Materials
Methylene blue
Physicochemical Processes at the Interfaces
Sorption
Tribology
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description The sorption activity of ethylcellulose–bentonite composites toward methylene blue has been studied. It has been determined that the degree of recovery of the dye with the composites increases by a factor of 2.5 as compared to unmodified polymer along with a significant decrease in the equilibrium time. Quantitative characteristics of sorption, such as modulus, filler content in composite, and initial concentration of dye in solution, have been determined under various conditions. It has been determined that the kinetics of the sorption process is described by the pseudo-first-order equation, while the isotherm fulfills the Langmuir law. Using IR spectroscopy, hydrogen-bond formation between oxygen-containing groups of the composite and heteroatoms of the dye has been shown.
doi_str_mv 10.1134/S2070205120020021
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source Springer Nature
subjects Bentonite
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composite materials
Corrosion and Coatings
Dyes
Ethyl cellulose
Industrial Chemistry/Chemical Engineering
Infrared spectroscopy
Inorganic Chemistry
Linear equations
Materials Science
Metallic Materials
Methylene blue
Physicochemical Processes at the Interfaces
Sorption
Tribology
title Sorption of Methylene Blue on Ethylcellulose–Bentonite Film Composites
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