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dc.contributor.authorPavlovic, I.-
dc.contributor.authorBarriga, C.-
dc.contributor.authorCornejo, J.-
dc.contributor.authorHermosín, M.C.-
dc.contributor.authorUlibarri Cormenzana, M. A.-
dc.date.accessioned2012-11-28T23:29:31Z-
dc.date.available2012-11-28T23:29:31Z-
dc.date.issued2006-
dc.identifierdoi: 10.1016/j.clay.2006.01.008-
dc.identifierissn: 0169-1317-
dc.identifier.citationApplied Clay Science 32(3-4): 245-251 (2006)-
dc.identifier.urihttp://hdl.handle.net/10261/61462-
dc.description.abstractHydrotalcite-like compound [Zn2Al(OH)6]2edta·nH2 O(ZnAl-edta) was obtained from the precursor [Zn2Al(OH)6]NO3·nH2O (ZnAl-NO3), by the anion exchange method, with the aim of uptake Cu2+, Cd2+ and Pb2+ from the aqueous solutions by chelating process between edta and metal cations. The amount of Cu2+, Cd2+ and Pb2+ adsorbed was monitorized by atomic absorption technique at different contact time, pH and metal concentrations. The results indicate the very fast adsorption of the metal cations by ZnAl-edta reaching the equilibrium of the uptake reaction in two hours for Cu and Pb and 24 h for Cd. The shape of the adsorption isotherms suggests specific interaction and high host-guest affinity. At pH 5.5 and initial concentration Ci = 10 mM, the amount adsorbed was Cs = 1117, 375 and 871 μmol/g for Cu2+, Cd2+ and Pb2+, respectively.-
dc.language.isoeng-
dc.publisherElsevier-
dc.rightsclosedAccess-
dc.titleUptake of Cu2+, Cd2+ and Pb2+ on Zn-Al layered double hydroxide intercalated with edta-
dc.typeartículo-
dc.identifier.doi10.1016/j.clay.2006.01.008-
dc.date.updated2012-11-28T23:29:32Z-
dc.description.versionPeer Reviewed-
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