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Design of functionalized polypropylene non-woven fabric with high β-CD grafting degree for bisphenol a removal: Adsorption performance and resistance.
- Source :
-
Chemical Engineering Science . Apr2024, Vol. 287, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- [Display omitted] • β-CD was modified with maleic anhydride to reduce its grafting hindrance. • The mass transfer resistence of BPA adsorption on PP-g-MAH-β-CD was explored. • A theoretical maximum saturated adsorption capacity of 169.06 mg/g was obtained. • PP-g-MAH-β-CD showed nearly unchanged BPA adsorption capacity in 15 cycles. A large amount of soluble beta-cyclodextrin (β-CD) was immobilized on polypropylene non-woven fabric (PP) by radiation and chemical grafting to obtain PP-g-MAH-β-CD, which can effectively adsorb bisphenol A (BPA) in water. A longer chemical chain was grafted by β-CD through the pre-modification, which effectively reduced the steric hindrance of further grafting reaction and made the grafting degree of β-CD on PP fabric higher. In addition, the adsorption mass transfer resistance of fabrics with different grafting degrees was calculated according to non-equilibrium thermodynamics to explore the effect of grafting degree on adsorption. The characterization results confirmed the successful preparation of PP-g-MAH-β-CD. The theoretical maximum saturated adsorption capacity of PP-g-MAH-β-CD was 146.55 mg/g. PP-g-MAH-β-CD was easy to recycle, and the adsorption capacity did not decrease significantly after 15 cycles of adsorption and desorption experiments. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00092509
- Volume :
- 287
- Database :
- Academic Search Index
- Journal :
- Chemical Engineering Science
- Publication Type :
- Academic Journal
- Accession number :
- 175344974
- Full Text :
- https://doi.org/10.1016/j.ces.2024.119744