Show simple item record

dc.contributor.authorBoudaoud, Nacera
dc.contributor.authorMiloudi, Hafida
dc.contributor.authorBouazza, Djamila
dc.contributor.authorAdjdir, Mehdi
dc.contributor.authorTayeb, Abdelkader
dc.contributor.authorFortuny Sanromá, Agustín
dc.contributor.authorDemey Cedeño, Hary
dc.contributor.authorSastre Requena, Ana María
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2020-06-23T07:27:07Z
dc.date.available2020-06-23T07:27:07Z
dc.date.issued2020-03-11
dc.identifier.citationBoudaoud, N. [et al.]. Removal of zinc from aqueous solutions using lamellar double hydroxide materials impregnated with Cyanex 272: Characterization and sorption studies. "Molecules", 11 Març 2020, vol. 25, núm. 6, p. 1263:1-1263:17.
dc.identifier.issn1420-3049
dc.identifier.otherhttps://europepmc.org/article/med/32168823
dc.identifier.urihttp://hdl.handle.net/2117/191342
dc.description.abstractRemoval of heavy metals from wastewater is mandatory in order to avoid water pollution of natural reservoirs. In the present study, layered double hydroxide (LDH) materials were evaluated for removal of zinc from aqueous solutions. Materials thus prepared were impregnated with cyanex 272 using the dry method. These materials were characterized through X-ray diffraction (XRD), Fourier transform infrared (FTIR), and thermal analysis. Batch shaking adsorption experiments were performed in order to examine contact time and extraction capacity in the removal process. Results showed that the equilibrium time of Zn (II) extraction is about 4 h for Mg2Al-CO3 and Mg2Al-CO3-cyanex 272, 6 h for Zn2Al-CO3, and 24 h for Zn2Al-CO3-cyanex 272. The experimental equilibrium data were tested for Langmuir, and Freundlich isotherm models. Correlation coefficients indicate that experimental results are in a good agreement with Langmuir’s model for zinc ions. Pseudo-first, second-order, Elovich, and intraparticular kinetic models were used to describe kinetic data. It was determined that removal of Zn2+ was well-fitted by a second-order reaction kinetic. A maximum capacity of 280 mg/g was obtained by Zn2Al-CO3-cyanex 272.
dc.description.sponsorshipThis research was funded by the Spanish Ministry of Economy and Competitiveness, MINECO (project Ref: CTM2017-83581-R). The APC was funded by MINECO.
dc.language.isoeng
dc.rightsAttribution 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectÀrees temàtiques de la UPC::Enginyeria química::Química del medi ambient::Química de l'aigua
dc.subject.lcshSewage -- Purification
dc.subject.lcshSewage -- Purification -- Heavy metals removal
dc.subject.otherCyanex 272
dc.subject.otherImpregnation
dc.subject.otherLayered double hydroxides (LDH)
dc.subject.otherSorption
dc.subject.otherZinc
dc.titleRemoval of zinc from aqueous solutions using lamellar double hydroxide materials impregnated with Cyanex 272: Characterization and sorption studies
dc.typeArticle
dc.subject.lemacAigües residuals -- Depuració
dc.subject.lemacMetalls pesants -- Absorció i adsorció
dc.contributor.groupUniversitat Politècnica de Catalunya. R2EM - Resource Recovery and Environmental Management
dc.identifier.doi10.3390/molecules25061263
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/1420-3049/25/6/1263
dc.rights.accessOpen Access
local.identifier.drac28639618
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2017-83581-R/ES/ESTRATEGIAS DE RECICLADO DE RESIDUOS QUE CONTIENEN TIERRAS RARAS: MEMBRANAS LIQUIDAS Y PROCESOS DE SORCION MEDIANTE NANOCOMPOSITES MAGNETICOS PARA SU SEPARACION Y RECUPERACION/
local.citation.authorBoudaoud, N.; Miloudi, H.; Bouazza, D.; Adjdir, M.; Tayeb, A.; Fortuny, A.; Demey, H.; Sastre, A.
local.citation.publicationNameMolecules
local.citation.volume25
local.citation.number6
local.citation.startingPage1263:1
local.citation.endingPage1263:17


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record