Original scientific paper

https://doi.org/10.15255/KUI.2020.081

Application of Immobilized TiO₂ for Removal of Cu(II) Ions

Igor Jajčinović orcid.org/0000-0003-0692-3140 ; University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, 44 000 Sisak, Croatia
Anita Štrkalj orcid.org/0000-0002-7117-4687 ; University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, 44 000 Sisak, Croatia
Ivan Brnardić ; University of Zagreb, Faculty of Metallurgy, Aleja narodnih heroja 3, 44 000 Sisak, Croatia

Abstract

The adsorption of Cu(II) ions on a mixture of anatase and rutile, two polymorphic forms of TiO₂, was investigated. The influence of the adsorbent/adsorbate contact time as well as the influence of the initial concentration of Cu(II) on the adsorption was monitored. The results showed that equilibrium occurred after only one minute of contact of Cu(II) and TiO₂, and that the adsorption capacity increased with initial concentration of Cu(II) ions. Experimental data were processed by Langmuir and Freundlich isotherm. The obtained results showed that the Freundlich model better described the investigated adsorption system, and that the adsorption was of a physical nature.




This work is licensed under a Creative Commons Attribution 4.0 International License.

Keywords

adsorption; Cu(II) ions; TiO2; isotherms

Hrčak ID:

264638

URI

https://hrcak.srce.hr/264638

Publication date:

2.11.2021.

Article data in other languages: croatian

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