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Removal of Fluoride from Drinking Water Using Protonated Glycerol Diglycidyl Ether Cross-Linked Chitosan Beads

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dc.contributor.author Pathirannehe, P.
dc.contributor.author Rajapakse, C.S.K.
dc.contributor.author Fernando, T.D.
dc.date.accessioned 2021-08-05T05:31:39Z
dc.date.available 2021-08-05T05:31:39Z
dc.date.issued 2021
dc.identifier.citation Pathirannehe, P., Fernando, T., & Rajapakse, C. (2021). Removal of Fluoride from Drinking Water Using Protonated Glycerol Diglycidyl Ether Cross-Linked Chitosan Beads. Chemistry & Chemical Technology, 15(2), 205–216. https://doi.org/10.23939/chcht15.02.205 en_US
dc.identifier.uri http://repository.kln.ac.lk/handle/123456789/23152
dc.description.abstract In this study, physically and chemically modified chitosan; protonated glycerol diglycidyl ether cross-linked chitosan beads (GDCLCB/H+) were prepared and characterized using FTIR and SEM. The optimum defluoridation capacity (DC) of GDCLCB/H+ was observed at the initial F- ion concentration of 15 mg/l, adsorbent dosage of 0.6 g, contact time of 30 min and pH of the solution was in the range of 5–7 at 303 ± 2 K. The equilibrium adsorption data fitted well with Langmuir and Freundlich isotherm models. The maximum adsorption capacity (q0), obtained from Langmuir isotherm for F-adsorption was found to be 2000 mg/kg, which was significantly higher than that of unmodified chitosan (192.3 mg/kg) and most of the chitosan-based sorbents reported in the literature. Water samples collected from Medawachchiya, Sri Lanka, were treated with the adsorbents and the results suggested that GDCLCB/H+ could be used as an effective defluoridation agent. en_US
dc.publisher Chem. Chem. Technol. en_US
dc.subject defluoridation capacity, fluoride, GDCLCB/H+ en_US
dc.title Removal of Fluoride from Drinking Water Using Protonated Glycerol Diglycidyl Ether Cross-Linked Chitosan Beads en_US


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