Bentonite-based sodium alginate/ dextrin cross-linked poly (acrylic acid) hydrogel nanohybrids for facile removal of paraquat herbicide from aqueous solutions.
Bentonite
Dextrin
Hydrogel composite
Paraquat removal
Sodium alginate
Journal
Chemosphere
ISSN: 1879-1298
Titre abrégé: Chemosphere
Pays: England
ID NLM: 0320657
Informations de publication
Date de publication:
Mar 2022
Mar 2022
Historique:
received:
11
09
2021
revised:
08
11
2021
accepted:
18
11
2021
pubmed:
29
11
2021
medline:
4
2
2022
entrez:
28
11
2021
Statut:
ppublish
Résumé
Removal of hazardous herbicides from the aqueous solution is critical for overcoming health-related issues across the wider population. In the current work, we have prepared sodium alginate (SAlg), dextrin, and acrylic acid (AA) based cross-linked hydrogels, composed of bentonite incorporated in the biocompatible hydrogel matrix. This hydrogel composite can remove highly toxic herbicide paraquat (PQ). As-synthesised hydrogel (SAlg/dextrin-cl-PAA) and hydrogel composite (SAlg/dextrin-cl-PAA/bentonite) were further analysed by infra-red spectroscopy (FTIR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and thermogravimetric analysis (TGA/DSC). For the first time, PQ adsorption onto sodium and dextrin-based hydrogel was also evaluated. The measured highest removal capacities were 76.923 and 90.909 mg g
Identifiants
pubmed: 34838829
pii: S0045-6535(21)03474-3
doi: 10.1016/j.chemosphere.2021.133002
pii:
doi:
Substances chimiques
Acrylates
0
Alginates
0
Dextrins
0
Herbicides
0
Hydrogels
0
Water Pollutants, Chemical
0
Bentonite
1302-78-9
acrylic acid
J94PBK7X8S
Paraquat
PLG39H7695
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
133002Informations de copyright
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