Highly-controlled grafting of mono and dicationic 4,4 '-bipyridine derivatives on SBA-15 for potential application as adsorbent of CuCl2 from ethanol solution

dc.creatorFattori, N
dc.creatorMaroneze, CM
dc.creatorMagosso, HA
dc.creatorKholin, YV
dc.creatorGushikem, Y
dc.date2012
dc.dateOCT 15
dc.date2014-07-30T17:50:04Z
dc.date2015-11-26T17:04:32Z
dc.date2014-07-30T17:50:04Z
dc.date2015-11-26T17:04:32Z
dc.date.accessioned2018-03-28T23:52:49Z
dc.date.available2018-03-28T23:52:49Z
dc.identifierJournal Of Colloid And Interface Science. Academic Press Inc Elsevier Science, v. 384, n. 137, n. 142, 2012.
dc.identifier0021-9797
dc.identifierWOS:000308337700019
dc.identifier10.1016/j.jcis.2012.06.065
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/68424
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/68424
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1279373
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionThis work describes a highly controlled post-grafting of mono and dicationic 4,4'-bipyridine alkoxysilane derivatives (Bipy(+) and Bipy(2+)) onto the surface of an ordered mesoporous silica, SBA-15. The materials obtained are designated as SBA-15/Bipy(+)Cl(-) and SBA-15/Bipy(2+)Cl(2)(-), both possessing chloride as counter ion. The regular arrangement of uniform pores of this inorganic matrix is likely to ensure good accessibility to the active centers (electron acceptors) attached to the surface. The materials are excellent adsorbents due to the ability of the functional groups to retain copper chlorides on their surfaces as anionic complexes (CuCl2+nn-) in ethanol. From the adsorption results it was possible to probe the functional surface monolayer of the materials, which present a highly homogenous distribution of functional groups inside the ordered SBA-15 channels, with an exchange efficiency of 93% for SBA-15/Bipy(+)Cl(-) and 94% for SBA-15/Bipy(2+)Cl(2)(-). Both adsorbent materials are potentially useful in the pre-concentration and further analysis of Cu(II) present in trace amounts in ethanol, extensively used as an automotive fuel in Brazil. (C) 2012 Elsevier Inc. All rights reserved.
dc.description384
dc.description137
dc.description142
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionMinistry of Education and Science, Youth and Sport of Ukraine [0110U001453]
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2009/12189-5]
dc.descriptionMinistry of Education and Science, Youth and Sport of Ukraine [0110U001453]
dc.languageen
dc.publisherAcademic Press Inc Elsevier Science
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Colloid And Interface Science
dc.relationJ. Colloid Interface Sci.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectSBA-15
dc.subject4,4 '-Bipyridine
dc.subjectAdsorbents
dc.subjectAnionic copper complex
dc.subjectFunctional surface monolayer
dc.subjectPeriodic Mesoporous Organosilica
dc.subjectPhase Oxidative Carbonylation
dc.subjectDimethyl Carbonate Synthesis
dc.subjectAmine-functionalized Sba-15
dc.subjectCoated Silica-gel
dc.subjectIn-situ Formation
dc.subjectSilsesquioxane Chloride
dc.subjectCatalytic-activity
dc.subjectMetal Adsorption
dc.subjectViologen Units
dc.titleHighly-controlled grafting of mono and dicationic 4,4 '-bipyridine derivatives on SBA-15 for potential application as adsorbent of CuCl2 from ethanol solution
dc.typeArtículos de revistas


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