New factorial designs to evaluate chemisorption of divalent metals on aminated silicas

dc.creatorCestari, AR
dc.creatorVieira, EFS
dc.creatorNascimento, AJP
dc.creatorde Oliveira, FJR
dc.creatorBruns, RE
dc.creatorAiroldi, C
dc.date2001
dc.dateSEP 1
dc.date2014-11-17T03:11:07Z
dc.date2015-11-26T16:30:29Z
dc.date2014-11-17T03:11:07Z
dc.date2015-11-26T16:30:29Z
dc.date.accessioned2018-03-28T23:11:33Z
dc.date.available2018-03-28T23:11:33Z
dc.identifierJournal Of Colloid And Interface Science. Academic Press Inc, v. 241, n. 1, n. 45, n. 51, 2001.
dc.identifier0021-9797
dc.identifierWOS:000170729600005
dc.identifier10.1006/jcis.2001.7711
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/66107
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/66107
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/66107
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269973
dc.descriptionAdsorption processes of Cu(II), Co(II), and Hg(II) on two aminated silica gel surfaces with immobilized ethylenediamine and diethylenediamine groups were studied by a new 2(3) full factorial design. Two metal quantity levels, temperatures of 25 and 50 degreesC, and silica amounts of 100 and 200 mg were employed. Our study indicates that higher factorial design levels increase adsorption for all metals evaluated, with the exception of the mass parameter. Adsorption is also significantly affected by important antagonistic and synergistic effects involving all factors. Both functionalized silica gel surfaces present higher interactions and good perspectives in preconcentration studies for mercury. The factorial design results are also discussed in terms of some solvation properties for each of the metals studied. (C) 2001 Academic Press.
dc.description241
dc.description1
dc.description45
dc.description51
dc.languageen
dc.publisherAcademic Press Inc
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Colloid And Interface Science
dc.relationJ. Colloid Interface Sci.
dc.rightsfechado
dc.sourceWeb of Science
dc.subjectaminated silicas
dc.subjectimmobilized metallic complexes
dc.subjectfactorial designs
dc.subjectSol-gel Process
dc.subjectPerformance Liquid-chromatography
dc.subjectImmobilization
dc.subjectAdsorption
dc.subjectCations
dc.subjectSurface
dc.subjectAcid
dc.subjectIons
dc.subjectThermodynamics
dc.subjectSolvation
dc.titleNew factorial designs to evaluate chemisorption of divalent metals on aminated silicas
dc.typeArtículos de revistas


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