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dc.contributor.authorChaudhary, Mohit
dc.contributor.authorRawat, Shweta
dc.contributor.authorJain, Nishant
dc.contributor.authorBhatnagar, Amit
dc.contributor.authorMaiti, Abhijit
dc.date.accessioned2019-05-08T09:46:26Z
dc.date.available2019-05-08T09:46:26Z
dc.date.issued2019
dc.identifier.urihttps://erepo.uef.fi/handle/123456789/7586
dc.description.abstractNano-particles are highly efficient fluoride adsorbents, but agglomerate easily due to their high surface activity and are difficult to separate from aqueous medium after use. Mixed-metals oxyhydroxides nano-particles were prepared into a natural polymeric matrix of chitosan to overcome these problems. Hydrous mixed-metal oxyhydroxides, loaded chitosan composite (Fe-Al-Mn@chitosan) was prepared using abundantly available laterite clay and waste from steel industry via co-precipitation method. Fluoride removal using Fe-Al-Mn@chitosan composite followed Freundlich isotherm model which revealed multilayer adsorption on heterogeneous surface sites. Fe-Al-Mn@chitosan exhibited maximum adsorption capacity of 40±0.5 mg/g, while if only the inorganic mass fraction of composite was considered; the value reached 55±0.5 mg/g. Fluoride adsorption on Fe-Al-Mn@chitosan followed the pseudo-second order kinetics with rapid adsorption. No significant effect of other competitive ions was observed on F− adsorption using Fe-Al-Mn@chitosan composite. The composite adsorbent is found to be effective to produce drinking water from fluoride contaminated groundwater.
dc.language.isoenglanti
dc.publisherElsevier BV
dc.relation.ispartofseriesCarbohydrate polymers
dc.relation.urihttp://dx.doi.org/10.1016/j.carbpol.2019.04.028
dc.rightsCC BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectfluoride removal
dc.subjectclay
dc.subjectmixed oxyhydroxides nano-particles
dc.subjectpolymeric-inorganic composite
dc.subjectferromanganese slag
dc.titleChitosan-Fe-Al-Mn metal oxyhydroxides composite as highly efficient fluoride scavenger for aqueous medium
dc.description.versionfinal draft
dc.contributor.departmentYmpäristö- ja biotieteiden laitos / Toiminta
uef.solecris.id62018831en
dc.type.publicationTieteelliset aikakauslehtiartikkelit
dc.rights.accessrights© Elsevier Ltd.
dc.relation.doi10.1016/j.carbpol.2019.04.028
dc.description.reviewstatuspeerReviewed
dc.format.pagerange140-148
dc.relation.issn0144-8617
dc.relation.volume216
dc.rights.accesslevelopenAccess
dc.type.okmA1
uef.solecris.openaccessEi


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