Adsorption of Zn(II) from aqueous solution and separation of zinc isotopes by displacement chromatography using chelating adsorbent.
Chelating adsorbent
Maximum front enrichment value
Separation coefficient
Zn isotope separation
Zn(II) removal
Journal
Journal of chromatography. A
ISSN: 1873-3778
Titre abrégé: J Chromatogr A
Pays: Netherlands
ID NLM: 9318488
Informations de publication
Date de publication:
20 Jan 2024
20 Jan 2024
Historique:
received:
10
10
2023
revised:
14
12
2023
accepted:
13
01
2024
medline:
26
1
2024
pubmed:
26
1
2024
entrez:
25
1
2024
Statut:
aheadofprint
Résumé
The removal of zinc ions (Zn(II)) in water and the separation of zinc isotopes were fully investigated in this study. Imidodiacetic acid (IDA) type adsorbent (named PSGI) based on polystyrene spheres (PS) was synthesized by simultaneous irradiation grafting. By adsorption method, the removal of Zn(II) from water by the chelating adsorbent was studied in batch experiments. Under optimized condition, PSGI showed the removal efficiency of more than 98 % for Zn(II) and the adsorption capacity of 70.1 mg/g. Langmuir isothermal and pseudo-second-order kinetic model fitted the experimental results better, indicating that the adsorption is dominated by chemical adsorption. The spent adsorbent (PSGI-Zn) was used for further zinc isotope separation by displacement chromatography using EDTA-NH
Identifiants
pubmed: 38271771
pii: S0021-9673(24)00032-3
doi: 10.1016/j.chroma.2024.464659
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
464659Informations de copyright
Copyright © 2024. Published by Elsevier B.V.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests:Jianhua Zu reports financial support was provided by National Natural Science Foundation of China.