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dc.contributor.authorLapo, Byron
dc.contributor.authorDemey Cedeño, Hary
dc.contributor.authorCarchi, Tany
dc.contributor.authorSastre Requena, Ana María
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2019-04-03T07:38:02Z
dc.date.available2019-04-03T07:38:02Z
dc.date.issued2019-02-01
dc.identifier.citationLapo, B. [et al.]. Antimony removal from water by a chitosan-Iron(III)[ChiFer(III)] biocomposite. "Polymers", 1 Febrer 2019, vol. 11, núm. 2, p. 351-1-351-14.
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/2117/131143
dc.description.abstractThe presence of antimony(III) in water represents a worldwide concern, mainly due to its high toxicity and carcinogenicity potential. It can be separated from water by the use of sustainable biopolymers such as chitosan or its derivatives. The present study applied chitosan modified with iron(III) beads to Sb(III) removal from aqueous solutions. The resulting material performed with a high adsorption capacity of 98.68 mg/g. Material characterization consisted of Raman spectroscopy (RS), X-ray diffraction (XRD), scanning electron microscope observations (SEM-EDX), Fourier transform infrared spectroscopy (FTIR) and point of zero charge (pHpzc). The adsorption study included pH study, effect of initial concentration, kinetics, ion effect, and reusability assessment. The RS, XRD, and FTIR results indicated that the main functional groups in the composite were related to hydroxyl and amino groups, and iron oxyhydroxide species of a-FeO(OH). The pHpzc was found to be 7.41. The best adsorption efficiency was set at pH 6. The equilibrium isotherms were better fitted with a non-linear Langmuir model, and the kinetics data were fitted with a pseudo-second order rate equation. The incorporation of iron into the chitosan matrix improved the Sb(III) uptake by 47.9%, compared with neat chitosan (CS). The material did not exhibit an impact in its performance in the presence of other ions, and it could be reused for up to three adsorption–desorption cycles
dc.language.isoeng
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química
dc.subject.lcshChitosan
dc.subject.lcshAntimony--Environmental aspects
dc.subject.lcshBiopolymers
dc.subject.lcshSteel
dc.subject.otherAntimony removal
dc.subject.otherchitosan
dc.subject.otheriron
dc.subject.othersorption
dc.titleAntimony removal from water by a chitosan-Iron(III)[ChiFer(III)] biocomposite
dc.typeArticle
dc.subject.lemacQuitosan
dc.subject.lemacAntimoni -- Aspectes ambientals
dc.subject.lemacBiopolímers
dc.subject.lemacAcer
dc.contributor.groupUniversitat Politècnica de Catalunya. R2EM - Resource Recovery and Environmental Management
dc.identifier.doi10.3390/polym11020351
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/2073-4360/11/2/351
dc.rights.accessOpen Access
local.identifier.drac24006558
dc.description.versionPostprint (author's final draft)
local.citation.authorLapo, B.; Demey, H.; Carchi, T.; Sastre, A.
local.citation.publicationNamePolymers
local.citation.volume11
local.citation.number2
local.citation.startingPage351-1
local.citation.endingPage351-14


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