Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.jcis.2013.10.032
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dc.titleA zirconium-based nanoparticle: Essential factors for sustainable application in treatment of fluoride containing water
dc.contributor.authorHe, J.
dc.contributor.authorChen, J.P.
dc.date.accessioned2014-06-17T05:28:38Z
dc.date.available2014-06-17T05:28:38Z
dc.date.issued2014-02-15
dc.identifier.citationHe, J., Chen, J.P. (2014-02-15). A zirconium-based nanoparticle: Essential factors for sustainable application in treatment of fluoride containing water. Journal of Colloid and Interface Science 416 : 227-234. ScholarBank@NUS Repository. https://doi.org/10.1016/j.jcis.2013.10.032
dc.identifier.issn00219797
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/58933
dc.description.abstractExcessive intake of fluoride can cause a severe threat on human beings. In this study, a zirconium-based nano-particles (NPs) was synthesized for effective defluoridation from aqueous solution. The pH effect, adsorption kinetics, adsorption isotherms, and effect of co-existing substances on the fluoride uptake were investigated. The results showed that the sorbent had a high adsorption capacity for fluoride within a wide pH ranging from 3 to 10. The optimal pH for the adsorption was around 4. The study of adsorption kinetics revealed that most uptake of fluoride occurred in the first 1. h, and the adsorption equilibrium was established within 4. h. Langmuir equation well described the adsorption isotherm data; the maximum adsorption capacities of 97.48 and 78.56. mg/g were found at optimal pH and neutral pH, respectively. The presence of PO43-, NO3- and natural organic matters did not significantly inhibit the fluoride removal. However, both HCO3- and SiO23- retarded the removal. The regeneration revealed that the sorbent possessed a high reusability for defluoridation. The intraparticle surface diffusion model well described the adsorption kinetics. The FTIR and XPS analysis demonstrated that the adsorption of fluoride was mainly associated with the ion-exchange between sulfate and fluoride ions. © 2013 Elsevier Inc.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.jcis.2013.10.032
dc.sourceScopus
dc.subjectAdsorption
dc.subjectFluoride
dc.subjectFTIR
dc.subjectIon exchange
dc.subjectNanoparticle
dc.subjectXPS
dc.subjectZirconium
dc.typeArticle
dc.contributor.departmentCIVIL & ENVIRONMENTAL ENGINEERING
dc.description.doi10.1016/j.jcis.2013.10.032
dc.description.sourcetitleJournal of Colloid and Interface Science
dc.description.volume416
dc.description.page227-234
dc.description.codenJCISA
dc.identifier.isiut000330162200034
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