Application of Brazilian kaolinite clay as adsorbent to removal of U(VI) from aqueous solution: Kinetic and thermodynamic of cation-basic interactions

dc.creatorGuerra, DL
dc.creatorLeidens, VL
dc.creatorViana, RR
dc.creatorAiroldi, C
dc.date2010
dc.dateMAY
dc.date2014-11-16T06:59:55Z
dc.date2015-11-26T17:23:46Z
dc.date2014-11-16T06:59:55Z
dc.date2015-11-26T17:23:46Z
dc.date.accessioned2018-03-29T00:11:04Z
dc.date.available2018-03-29T00:11:04Z
dc.identifierJournal Of Solid State Chemistry. Academic Press Inc Elsevier Science, v. 183, n. 5, n. 1141, n. 1149, 2010.
dc.identifier0022-4596
dc.identifierWOS:000277675500023
dc.identifier10.1016/j.jssc.2010.03.021
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/54728
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/54728
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/54728
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1283909
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionThe compound N(1)[3-(trimethoxysilyl)propyl]diethylenetriamine was anchored onto Amazon kaolinite surface by heterogeneous route. The modified and natural kaolinite samples were characterized by transmission electron microscopy, scanning electron microscopic. X-ray diffraction, and nuclear magnetic nuclei of (29)Si and (13)C. The well-defined peaks obtained in the (13)C NMR spectrum in the 5.0-62.1 ppm region confirmed the attachment of organic functional groups as pendant chains bonded into the porous clay. The ability of these materials to remove U(VI) from aqueous solution was followed by a series of adsorption isotherms adjusted to a Sips equation at room temperature and pH 4.0. The kinetic parameters analyzed by the Lagergren and Elovich models gave a good fit for a pseudo-second order reaction with k(2) values 16.0 and 25.1 mmol g(-1) min(-1) ranges for natural and modified kaolinite clays, respectively. The energetic effects caused by metal ion adsorption were determined through calorimetric titrations. (C) 2010 Published by Elsevier Inc.
dc.description183
dc.description5
dc.description1141
dc.description1149
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languageen
dc.publisherAcademic Press Inc Elsevier Science
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Solid State Chemistry
dc.relationJ. Solid State Chem.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectKaolinite
dc.subjectUranyl
dc.subjectAdsorption
dc.subjectCalorimetry
dc.subjectThermodynamic
dc.subjectHeavy-metal Ions
dc.subjectMesoporous Materials
dc.subjectAdsorption Process
dc.subjectToxic Metals
dc.subjectIntercalation
dc.subjectPerformance
dc.subjectMagadiite
dc.subjectSorption
dc.subjectSilicas
dc.subjectModel
dc.titleApplication of Brazilian kaolinite clay as adsorbent to removal of U(VI) from aqueous solution: Kinetic and thermodynamic of cation-basic interactions
dc.typeArtículos de revistas


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