Improving the removal rate of bisphenol A and Cu2+ from water using P/N coexisting ß-cyclodextrin-based adsorbents by enhancing adsorbents-pollutants interactions.
Carbohydr Polym
; 343: 122437, 2024 Nov 01.
Article
in En
| MEDLINE
| ID: mdl-39174082
ABSTRACT
Bisphenol A (BPA), a prominent endocrine-disrupting compound, has garnered considerable attention due to its urgent need for rapid removal from water. Herein, we first used a novel reactive phosphine oxide containing tertiary amines as crosslinker to prepare water-insoluble crosslinked ß-cyclodextrin (ß-CD) adsorbent via radical-mediated thiol-ene polymerization. Owing to the synergistic hydrogen-bond (H-bond) interactions of functional groups (tertiary amine and PO groups) toward BPA, the resulted adsorbents showed fast adsorption kinetics to BPA with an adsorption equilibrium time of 5 min. After six adsorption-desorption cycles, the removal efficiency of BPA was 92.5 %, indicating its excellent reusability. Due to the presence of the CS bonds, the ß-CD -derived bio-adsorbents offered binding sites for Cu2+ ions, resulting in a maximum adsorption capacity of 113.89 mg g-1.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Carbohydr Polym
Year:
2024
Document type:
Article
Country of publication:
United kingdom