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AuthorAhmed S., El-Shafie
AuthorEl-Azazy, Marwa
Available date2024-03-06T07:29:46Z
Publication Date2024-02-20
Publication NameInternational Journal of Biological Macromolecules
Identifierhttp://dx.doi.org/10.1016/j.ijbiomac.2024.130224
CitationEl-Shafie, A. S., & El-Azazy, M. (2024). Crosslinked chitosan–montmorillonite composite and its magnetized counterpart for the removal of basic fuchsin from wastewater: Parametric optimization using box-behnken design. International Journal of Biological Macromolecules, 130224.
ISSN0141-8130
URIhttps://www.sciencedirect.com/science/article/pii/S0141813024010274
URIhttp://hdl.handle.net/10576/52777
AbstractTreating wastewater polluted with organic dyestuffs is still a challenge. In that vein, facile synthesis of a structurally simple composite of chitosan with montmorillonite (CS-MMT) using glutaraldehyde as a crosslinker and the magnetized analogue (MAG@CS-MMT) was proposed as versatile adsorbents for the cationic dye, basic Fuchsin (FUS). Statistical modeling of the adsorption process was mediated using Box-Behnken (BB) design and by varying the composite dose, pH, [FUS], and contact time. Characterization of both composites showed an enhancement of surface features upon magnetization, substantiating a better FUS removal of the MAG@CS-MMT (%R = 98.43 %) compared to CS-MMT (%R = 68.02 %). The surface area analysis demonstrates that MAG@CS-MMT possesses a higher surface area, measuring 41.54 m2/g, and the surface analysis of the magnetized nanocomposite, conducted using FT-IR and Raman spectroscopies, proved the presence of FeO peaks. In the same context, adsorption of FUS onto MAG@CS-MMT fitted-well to the Langmuir isotherm model and the maximum adsorption capacities (qm) were 53.11 mg/g for CS-MMT and 88.34 mg/g for MAG@CS-MMT. Kinetics investigation shows that experimental data fitted well to the pseudo-second order (PSO) model. Regeneration study reveals that MAG@CS-MMT can be recovered effectively for repeated use with a high adsorption efficiency for FUS.
SponsorOpen Access funding provided by the Qatar National Library.
Languageen
PublisherElsevier
SubjectCrosslinking
Polymer-clay composite
Adsorption
TitleCrosslinked chitosan–montmorillonite composite and its magnetized counterpart for the removal of basic fuchsin from wastewater: Parametric optimization using Box-Behnken design
TypeArticle
Volume Number263
Open Access user License http://creativecommons.org/licenses/by/4.0/
ESSN1879-0003
dc.accessType Full Text


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