Research Article

Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice

Volume: 7 Number: 1 June 30, 2023
EN

Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice

Abstract

The removal of dyes from aqueous solution with cheap and abundant adsorbents is becoming increasingly important for the solution of a serious environmental problem such as wastewater treatment. In this study, isotherm and kinetic modeling of the adsorption of methylene blue on pumice, a porous and glassy volcanic rock resistant to physical and chemical factors, was aimed. For this, the compatibility of the experimental data with the isotherm and kinetic models was examined, and information about the efficiency, effectiveness and rate of adsorption was tried to be obtained. Experimental data have been applied to isotherm models such as Langmuir, Freundlich, Temkin, Brenuer-Emmet-Teller (BET), Dubinin- Radushkevich, and Harkins-Jura, and kinetic models such as pseudo-first order, pseudo-second order, and intraparticle diffusion. While the order of fit for the isotherm models was determined as Freundlich > Harkins-Jura > Dubinin- Radushkevich based on the results of the regression analysis, the highest fit was obtained with the Freundlich equation (R2:0.993). Thus, the adsorption intensity (n) of methylene blue on pumice was calculated as 1.14 and the adsorption capacity (k) of pumice was calculated as 6.43. On the other hand, the order of fit of the experimental data to the kinetic models was determined as pseudo-second order > pseudo-first order > intra particle diffusion according to the regression coefficients. However, the highest consistency among the kinetic models was obtained with the pseudo-second order kinetic model(R2:1.000).

Keywords

References

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Details

Primary Language

English

Subjects

Chemical Engineering

Journal Section

Research Article

Early Pub Date

June 26, 2023

Publication Date

June 30, 2023

Submission Date

April 10, 2023

Acceptance Date

June 26, 2023

Published in Issue

Year 2023 Volume: 7 Number: 1

APA
Güneş, K. (2023). Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice. International Journal of Chemistry and Technology, 7(1), 67-74. https://doi.org/10.32571/ijct.1279701
AMA
1.Güneş K. Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice. Int. J. Chem. Technol. 2023;7(1):67-74. doi:10.32571/ijct.1279701
Chicago
Güneş, Kübra. 2023. “Isotherm and Kinetic Modeling of the Adsorption of Methylene Blue, a Cationic Dye, on Pumice”. International Journal of Chemistry and Technology 7 (1): 67-74. https://doi.org/10.32571/ijct.1279701.
EndNote
Güneş K (June 1, 2023) Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice. International Journal of Chemistry and Technology 7 1 67–74.
IEEE
[1]K. Güneş, “Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice”, Int. J. Chem. Technol., vol. 7, no. 1, pp. 67–74, June 2023, doi: 10.32571/ijct.1279701.
ISNAD
Güneş, Kübra. “Isotherm and Kinetic Modeling of the Adsorption of Methylene Blue, a Cationic Dye, on Pumice”. International Journal of Chemistry and Technology 7/1 (June 1, 2023): 67-74. https://doi.org/10.32571/ijct.1279701.
JAMA
1.Güneş K. Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice. Int. J. Chem. Technol. 2023;7:67–74.
MLA
Güneş, Kübra. “Isotherm and Kinetic Modeling of the Adsorption of Methylene Blue, a Cationic Dye, on Pumice”. International Journal of Chemistry and Technology, vol. 7, no. 1, June 2023, pp. 67-74, doi:10.32571/ijct.1279701.
Vancouver
1.Kübra Güneş. Isotherm and kinetic modeling of the adsorption of methylene blue, a cationic dye, on pumice. Int. J. Chem. Technol. 2023 Jun. 1;7(1):67-74. doi:10.32571/ijct.1279701

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