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dc.contributor.authorJavadian, Hamedreza
dc.contributor.authorRuiz Planas, Montserrat
dc.contributor.authorSastre Requena, Ana María
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Química
dc.date.accessioned2020-11-03T08:18:53Z
dc.date.available2022-05-15T00:28:40Z
dc.date.issued2020-05-15
dc.identifier.citationJavadian, H.; Ruiz, M.; Sastre, A. Ca-alginate/carboxymethyl chitosan/Ni0.2Zn0.2Fe2.6O4 magnetic bionanocomposite: Synthesis, characterization and application for single adsorption of Nd+3, Tb+3, and Dy+3 rare earth elements from aqueous media. "Journal of molecular liquids", 15 Maig 2020, vol. 306, p. 112760/1-112760/11.
dc.identifier.issn0167-7322
dc.identifier.urihttp://hdl.handle.net/2117/331163
dc.description.abstractThis study aims to research the adsorption of Nd+3, Tb+3, and Dy+3 from aqueous media onto the magnetic calcium alginate/carboxymethyl chitosan/Ni0.2Zn0.2Fe2.6O4 (CA/CMC/Ni0.2Zn0.2Fe2.6O4) bionanocomposite in a single system. FE-SEM, FT-IR, EDX, VSM, and TGA were applied to characterize the product. The VSM result showed the saturation magnetization values of 45.87 and 14.14 emu/g for the bare Ni0.2Zn0.2Fe2.6O4 nanoparticles and CA/CMC/Ni0.2Zn0.2Fe2.6O4, respectively. The adsorption results showed that at optimum conditions of contact time of 40 min, pH of 5.5, and 0.8 g/L, the adsorption efficiency of the adsorbent for Nd+3, Tb+3, and Dy+3 was 97.75, 96.83, and 97.85%, respectively. The ions adsorption kinetic onto the CA/CMC/Ni0.2Zn0.2Fe2.6O4 was in accordance with pseudo-second-order (PSO) model. The evaluation of equilibrium data was performed by the isotherm models of Langmuir and Freundlich. Fitting the experimental data of Tb+3 and Dy+3 was done better with Freunlich model than Langmuir model, while fitting tests for Nd+3 adsorption data showed better coverage using Langmuir model with a maximum adsorption capacity of 73.37 mg/g. The results of the parameters of thermodynamic showed the endothermic and spontaneous properties of the process. Additionally, the efficacy of the adsorbent was studied using 0.2 M HNO3 in four adsorptions–desorption cycles. Overall, the obtained results demonstrated that the environmentally friendly magnetic bionanocomposite adsorbent can be applied effectively for Nd+3, Tb+3, and Dy+3 adsorption with favorable adsorption efficiency.
dc.language.isoeng
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.lcshRare earth metals
dc.subject.lcshMembranes (Technology)
dc.subject.lcshNanofiltration
dc.subject.otherCarboxymethyl chitosan
dc.subject.otherCalcium alginate
dc.subject.otherNi0.2Zn0.2Fe2.6O4
dc.subject.otherAdsorption
dc.subject.otherRare earth elements
dc.titleCa-alginate/carboxymethyl chitosan/Ni0.2Zn0.2Fe2.6O4 magnetic bionanocomposite: Synthesis, characterization and application for single adsorption of Nd+3, Tb+3, and Dy+3 rare earth elements from aqueous media
dc.typeArticle
dc.subject.lemacTerres rares
dc.subject.lemacMembranes (Tecnologia)
dc.subject.lemacNanofiltració
dc.contributor.groupUniversitat Politècnica de Catalunya. R2EM - Resource Recovery and Environmental Management
dc.identifier.doi10.1016/j.molliq.2020.112760
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/abs/pii/S0167732219364438
dc.rights.accessOpen Access
local.identifier.drac28781061
dc.description.versionPreprint
local.citation.authorJavadian, H.; Ruiz, M.; Sastre, A.
local.citation.publicationNameJournal of molecular liquids
local.citation.volume306
local.citation.startingPage112760/1
local.citation.endingPage112760/11


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