Quaternization of Composite Algal/PEI Beads for Enhanced Uranium Sorption-Application to Ore Acidic Leachate.
algal/Polyethylenimine beads
metal recovery from ore leachates
quaternization
sorption isotherms and uptake kinetics
uranyl sorption and desorption
Journal
Gels (Basel, Switzerland)
ISSN: 2310-2861
Titre abrégé: Gels
Pays: Switzerland
ID NLM: 101696925
Informations de publication
Date de publication:
30 Mar 2020
30 Mar 2020
Historique:
received:
27
02
2020
revised:
27
03
2020
accepted:
28
03
2020
entrez:
3
4
2020
pubmed:
3
4
2020
medline:
3
4
2020
Statut:
epublish
Résumé
The necessity to recover uranium from dilute solutions (for environmental/safety and resource management) is driving research towards developing new sorbents. This study focuses on the enhancement of U(VI) sorption properties of composite algal/Polyethylenimine beads through the quaternization of the support (by reaction with glycidyltrimethylammonium chloride). The sorbent is fully characterized by FTIR, XPS for confirming the contribution of protonated amine and quaternary ammonium groups on U(VI) binding (with possible contribution of hydroxyl and carboxyl groups, depending on the pH). The sorption properties are investigated in batch with reference to pH effect (optimum value: pH 4), uptake kinetics (equilibrium: 40 min) and sorption isotherms (maximum sorption capacity: 0.86 mmol U g
Identifiants
pubmed: 32235683
pii: gels6020012
doi: 10.3390/gels6020012
pmc: PMC7345210
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : National Natural Science Foundation of China
ID : 11675102
Organisme : National Natural Science Foundation of China
ID : 11975082
Organisme : National Natural Science Foundation of China
ID : U1967218
Organisme : Ministère des Affaires Etrangères
ID : 39529QA (IMHOTEP Program)
Organisme : Ministère de l'Enseignement Supérieur et de la Recherche
ID : 39529QA (IMHOTEP Program)
Organisme : Egyptian Academy of Science and Technology
ID : IMHOTEP Program MetalValor
Déclaration de conflit d'intérêts
The authors declare no conflict of interest.
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