Adsorption isotherms for copper ions adsorption onto walnut shells

Loading...
Thumbnail Image

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

Collections