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Vol. 35 No. 7 (2023): Vol 35 Issue 7 (2023)

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Tetravalent Cerium Cation Imprinted Crosslinked Acrylamide/Alginic Acid Copolymer Network: A Sorption and Ce(IV) Ion-Selectivity Study from Aqueous Solutions

https://doi.org/10.14233/ajchem.2023.27887
P. Rohith
PG Department of Chemistry and Research Centre, Sanatana Dharma College, Alappuzha-688003, India
https://orcid.org/0000-0001-7799-2093
Saraswathi S. Kumar
PG Department of Chemistry and Research Centre, Sanatana Dharma College, Alappuzha-688003, India
https://orcid.org/0000-0001-7446-3807
P. Girija
PG Department of Chemistry and Research Centre, Sanatana Dharma College, Alappuzha-688003, India
https://orcid.org/0000-0002-4574-3233

Corresponding Author(s) : P. Girija

girijakallelil@gmail.com

Asian Journal of Chemistry, Vol. 35 No. 7 (2023): Vol 35 Issue 7 (2023)

Abstract

A novel tetravalent cerium cation-imprinted crosslinked polymer network (Ce(IV)-CICPN) based on polyacrylamide was synthesized by metal-ion-imprinting strategy in an aqueous medium with N,N-methylene-bis-acrylamide (NNMBA) as crosslinker. The synthesized CPN is characterized by UV-Vis spectroscopy, FTIR spectroscopy, PXRD analysis, SEM studies, EDX and thermogravimetric analysis. The adsorption performance was studied using adsorption isotherms and kinetics. The Ce(IV)-CICPN was optimized for maximum Ce(IV) ion sorption using the batch equilibration method, and its performance has been compared with that of a non-imprinted crosslinked polymer network (non-imprinted CPN). It was found that it possesses a maximum adsorption capacity of 70.3 mg/g. The surface area of both Ce(IV)-CICPN and non-imprinted CPNs were determined by BET surface area analysis and found to be 2.103 m2 g–1 and 0.62 m2 g–1, respectively. Polymer efficiency as a selective sorbent for Ce(IV) ion was estimated through examining its selectivity relative to Zn(II), Mg(II), Cr(IV) and V(V).

Keywords

Cerium Cation-imprinted crosslinked polymer network Sorbent Selectivity
Rohith, P., Kumar, S. S., & Girija, P. (2023). Tetravalent Cerium Cation Imprinted Crosslinked Acrylamide/Alginic Acid Copolymer Network: A Sorption and Ce(IV) Ion-Selectivity Study from Aqueous Solutions. Asian Journal of Chemistry, 35(7), 1603–1610. https://doi.org/10.14233/ajchem.2023.27887
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