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On the adsorption mechanism of copper ions on bentonite clay Full article

Journal Russian Chemical Bulletin
ISSN: 1573-9171 , E-ISSN: 1066-5285
Output data Year: 2022, Volume: 71, Number: 4, Pages: 651-655 Pages count : 5 DOI: 10.1007/s11172-022-3461-y
Authors Vezentsev A.I. 1 , Gorbunova N.M. 1 , Sokolovskiy P.V. 2 , Mar’inskikh S.G. 3,4 , Chub A.V. 5 , Chau Nguyen Hoai 6 , Greish A.A. 2
Affiliations
1 Belgorod State National Research University, 85 ul. Pobedy, 308015 Belgorod, Russian Federation
2 N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prospect, 119991 Moscow, Russian Federation
3 LLC "Company BENTONIT," Build. 1, 12 ul. Tverskaya, 125009 Moscow, Russian Federation
4 Tyumen Industrial University, 38 ul. Volodarskogo, 625000 Tyumen, Russian Federation
5 LLC "Leading," 1a ul. Lermontova, Bol´shoe Polpino, 241903 Bryansk, Russian Federation
6 Vietnam Academy of Science and Technology, Institute of Environmental Technology, 650000 Hanoi, Vietnam

Abstract: The adsorption of copper ions on bentonite clay was studied as a function of the pH of the medium, contact time, and temperature. A comparative study of the applicability of the Langmuir and Freindlich adsorption models for the description of the experimental adsorption isotherms of Cu2+ was carried out. The constants and parameters of the equations describing the adsorption equilibrium were determined. The correlation coefficients (R2) indicate that both models satisfactorily outline the sorption process. However, the Langmuir adsorption isotherm is more preferable for describing adsorption of Cu2+ ions on bentonite clay, since it allows one to determine the limiting adsorption capacity. The adsorption of Cu2+ ions on bentonite clay increases as the temperature increases from 293 to 333 K. At the same time, the shape of the adsorption isotherms remains unchanged.
Cite: Vezentsev A.I. , Gorbunova N.M. , Sokolovskiy P.V. , Mar’inskikh S.G. , Chub A.V. , Chau N.H. , Greish A.A.
On the adsorption mechanism of copper ions on bentonite clay
Russian Chemical Bulletin. 2022. V.71. N4. P.651-655. DOI: 10.1007/s11172-022-3461-y WOS Scopus OpenAlex
Identifiers:
Web of science: WOS:000786397900004
Scopus: 2-s2.0-85128814707
OpenAlex: W4224319830
Citing:
DB Citing
OpenAlex 6
Scopus 6
Web of science 6
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