Adsorption isotherms for copper ions adsorption onto walnut shells
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Date
2021
Authors
Gorgievski, Milan
Marković, Miljan
Božić, Dragana
Stanković, Velizar
Štrbac, Nada
Grekulović, Vesna
Zdravković, Milica
Journal Title
Journal ISSN
Volume Title
Publisher
University of Belgrade, Technical Faculty in Bor
Source
Proceedings - 52nd International October Conference on Mining and Metallurgy - IOC 2021, November 29th - 30th 2021, Bor, Serbia, 2021, 109-112
Volume
Issue
Abstract
In this paper Langmuir, Freundlich, and Temkin adsorption isotherm models were used for describing the adsorption of copper ions onto walnut shells. The adsorption was performed in a batch system. The obtained isotherm data were fitted using the mentioned models, and the isotherm parameters were calculated from the linearized plots corresponding to each model. The Langmuir adsorption isotherm model showed the best agreement with the analyzed experimental data, with the correlation coefficient R2 = 0.993. According to this model, the adsorption process occurs until a complete monolayer of copper ions is formed on the surface of the walnut shells. The maximum adsorption capacity, according to this model, was 7.71 mg g-1.
Description
Keywords
Adsorption isotherms, walnut shells, adsorption capacity, copper ions, batch system
Citation
DOI
Scopus
ISSN
ISBN
978‐86‐6305‐119‐5
License
CC-BY-NC-ND