New highly-percolating alginate-PEI membranes for efficient recovery of chromium from aqueous solutions.
Alginate
Hexavalent chromium
Macroporous membranes
Polyethyleneimine
Sorption isotherms
Uptake kinetics
Journal
Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156
Informations de publication
Date de publication:
01 Dec 2019
01 Dec 2019
Historique:
received:
05
06
2019
revised:
10
07
2019
accepted:
06
08
2019
entrez:
16
9
2019
pubmed:
16
9
2019
medline:
16
9
2019
Statut:
ppublish
Résumé
Highly percolating membranes are prepared by the interaction of polyethylenimine and alginate (with glutaraldehyde crosslinking). SEM illustrates the macroporous structure of the material. The material is characterized by FTIR before and after chromate anions sorption. Batch-simulated continuous sorption experiments revealed that the maximum sorption occurred at pH 2 and the flow rate has limited effect on sorption efficiency. Uptake kinetics and sorption isotherms are well fitted by the pseudo-second-order rate and Sips equations, respectively. Maximum sorption is found close to 314 mg g
Identifiants
pubmed: 31521319
pii: S0144-8617(19)30844-6
doi: 10.1016/j.carbpol.2019.115177
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
115177Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.