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Copyright © 2021 R. Devanathan et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0/

Abstract

This study reports the use of hydrophobic ionic liquid (IL) based on D-galactose for the recovery of Ce (III) and Pr (III) ions from solutions. The equilibrium data were obtained by optimization of batch parameters, and various isotherms and kinetic models were utilised to predict the mechanistic process of sequestration of ions. The Arrhenius activation energies are found to be between 5–40 kJ, suggesting the physisorption process of ions onto IL. The present process is understood to be rapid and exothermic in nature according to thermodynamic experiments. The loading capacity was found to be 179.3 g L−1 and 141.5 g L−1, respectively, for Ce (III) and Pr (III) ions at pH 5 with a contact time of 30 min and dose being 0.1 g L−1. The higher uptake capacity is attributed to the presence of a highly electronegative fluorine atom in the IL. These results highlight the potential application of IL in the sequestration of Ce (III) and Pr (III) ions from any water sources.

Details

Title
Adsorption of Rare Earth Ce3+ and Pr3+ Ions by Hydrophobic Ionic Liquid
Author
Devanathan, R 1   VIAFID ORCID Logo  ; Balaji, G L 2   VIAFID ORCID Logo  ; Lakshmipathy, R 3   VIAFID ORCID Logo 

 Department of Chemistry, Thanthai Hans Roever College, Perambalur 621212, Tamilnadu, India 
 Department of Chemistry, Thanthai Hans Roever College, Perambalur 621212, Tamilnadu, India; School of Advanced Science and Languages, VIT Bhopal University, Bhopal 466114, Madhya Pradesh, India 
 Department of Chemistry, KCG College of Technology, Karapakkam, Chennai 600097, Tamilnadu, India 
Editor
Ping Xiang
Publication year
2021
Publication date
2021
Publisher
John Wiley & Sons, Inc.
ISSN
16879805
e-ISSN
16879813
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2537374141
Copyright
Copyright © 2021 R. Devanathan et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0/