Comparative study of adsorption of fluoride ions on chitosan gel beads and cross-linked chitosan gel beads
GOUDALI, O., EL KAIMBILLAH, R., AGUNAOU, M., EL AZHAR, M., SOUFIANE, A. (2020). Comparative study of adsorption of fluoride ions on chitosan gel beads and cross-linked chitosan gel beads. EKB Journal Management System, 63(11), 4253-4259. doi: 10.21608/ejchem.2019.12621.1795
OTMAN GOUDALI; RACHID EL KAIMBILLAH; MAHFOUD AGUNAOU; MOHAMMED EL AZHAR; ABDESSADIK SOUFIANE. "Comparative study of adsorption of fluoride ions on chitosan gel beads and cross-linked chitosan gel beads". EKB Journal Management System, 63, 11, 2020, 4253-4259. doi: 10.21608/ejchem.2019.12621.1795
GOUDALI, O., EL KAIMBILLAH, R., AGUNAOU, M., EL AZHAR, M., SOUFIANE, A. (2020). 'Comparative study of adsorption of fluoride ions on chitosan gel beads and cross-linked chitosan gel beads', EKB Journal Management System, 63(11), pp. 4253-4259. doi: 10.21608/ejchem.2019.12621.1795
GOUDALI, O., EL KAIMBILLAH, R., AGUNAOU, M., EL AZHAR, M., SOUFIANE, A. Comparative study of adsorption of fluoride ions on chitosan gel beads and cross-linked chitosan gel beads. EKB Journal Management System, 2020; 63(11): 4253-4259. doi: 10.21608/ejchem.2019.12621.1795

Comparative study of adsorption of fluoride ions on chitosan gel beads and cross-linked chitosan gel beads

Egyptian Journal of Chemistry
Article 10, Volume 63, Issue 11, November 2020, Page 4253-4259  XML PDF (269.13 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.12621.1795
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Authors
OTMAN GOUDALI email 1; RACHID EL KAIMBILLAH2; MAHFOUD AGUNAOU2; MOHAMMED EL AZHAR3; ABDESSADIK SOUFIANE2
1Laboratory of Chemistry of Coordination and Analytics, Faculty of Science, B.P. 24000, El Jadida, Morocco
2Laboratory of Chemistry of Coordination and Analytics, Faculty of Science, B.P. 24000, El Jadida, Morocco.
3Laboratory of chemistry of coordination and Analytics, Faculty of Science, BP. 24000 El Jadida, Morocco
Abstract
Abstract
The presence of fluoride in water has become a major concern worldwide because of its chronic cancerogenic behavior in humans. In order to remove fluoride from the aqueous solution, we synthesized chitosan gel beads (CB) and cross-linked chitosan gel beads (CCB) in a batch reactor. Thus, a series of experiments were carried out to study the influence on the adsorption capacity of certain parameters such as initial fluoride concentration, adsorbent mass, pH solution and contact time. The results obtained show that the percent removal of fluoride reached a maximum of 62% after 25 min for chitosan gel beads and 72% after 30 min for cross-linked chitosan gel beads. Adsorption kinetics of the fluoride ions on the two adsorbents is well described by the pseudo-first-order model and that the adsorption isotherms are followed by the Langmuir model.
Keywords
Keywords : Fluoride; Adsorption; Chitosan beads; Cross-linking
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