dc.creatorGamba, Martina
dc.creatorLazaro Martinez, Juan Manuel
dc.creatorOlivelli, Melisa Soledad
dc.creatorYarza, Florencia
dc.creatorVega, Daniel
dc.creatorCurutchet, Gustavo Andres
dc.creatorTorres Sanchez, Rosa Maria
dc.date.accessioned2020-10-26T15:19:24Z
dc.date.accessioned2022-10-15T12:22:41Z
dc.date.available2020-10-26T15:19:24Z
dc.date.available2022-10-15T12:22:41Z
dc.date.created2020-10-26T15:19:24Z
dc.date.issued2019-01
dc.identifierGamba, Martina; Lazaro Martinez, Juan Manuel; Olivelli, Melisa Soledad; Yarza, Florencia; Vega, Daniel; et al.; Kinetic and equilibrium adsorption of two post-harvest fungicides onto copper-exchanged montmorillonite: synergic and antagonistic effects of both fungicides’ presence; Springer Heidelberg; Environmental Science and Pollution Research; 26; 3; 1-2019; 2421-2434
dc.identifier0944-1344
dc.identifierhttp://hdl.handle.net/11336/116813
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4385512
dc.description.abstractThe simultaneous adsorption of both imazalil (IMZ) and thiabendazole (TBZ) fungicides in a Cu 2+ -exchanged Mt was studied in this work. Kinetic studies were used to determine the rate law which describes the adsorption of individual fungicides onto the adsorbent. Adsorption isotherm of individual and combined fungicides was done to evaluate synergic or antagonistic effects. The Mt-Cu material considerably improved TBZ and/or IMZ adsorption from aqueous suspensions with respect to raw Mt, leading to removal efficiencies higher than 99% after 10 min of contact time for TBZ and IMZ C i  = 15 and 40 mg/L, respectively, when a solid dosage = 1 g/L was used. The adsorption sites involved were determined by a combination of X-ray diffraction (XRD) determinations and electron paramagnetic resonance (EPR), indicating that fungicides were bonded to Cu 2+ cations, while the rate limiting step was the formation of coordination bonds. The adsorption mechanism proposed is that of ligand exchange between water and fungicide molecules in the metal coordination sphere. The single-crystal structure for the IMZ-Cu 2+ complex indicated that four molecules were bounded to the copper centers, while two molecules of TBZ are bounded to copper explaining the higher IMZ uptake capacity for the Mt-Cu material.
dc.languageeng
dc.publisherSpringer Heidelberg
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s11356-018-3638-y
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s11356-018-3638-y
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectADSORPTION
dc.subjectCOPPER-IMAZALIL COMPLEX
dc.subjectCRYSTAL STRUCTURE DETERMINATION
dc.subjectIMAZALIL
dc.subjectTHIABENDAZOLE
dc.titleKinetic and equilibrium adsorption of two post-harvest fungicides onto copper-exchanged montmorillonite: synergic and antagonistic effects of both fungicides’ presence
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:ar-repo/semantics/artículo
dc.typeinfo:eu-repo/semantics/publishedVersion


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