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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/34886
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dc.contributor.authorMelnikov, P.-
dc.contributor.authorSantagnelli, S. B.-
dc.contributor.authordos Santos, F. J.-
dc.contributor.authorDelben, AAST-
dc.contributor.authorDelben, JRJ-
dc.contributor.authorTeixeira, ALR-
dc.date.accessioned2014-05-20T15:24:14Z-
dc.date.accessioned2016-10-25T17:58:24Z-
dc.date.available2014-05-20T15:24:14Z-
dc.date.available2016-10-25T17:58:24Z-
dc.date.issued2003-12-20-
dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2003.08.011-
dc.identifier.citationMaterials Chemistry and Physics. Lausanne: Elsevier B.V. Sa, v. 82, n. 3, p. 980-983, 2003.-
dc.identifier.issn0254-0584-
dc.identifier.urihttp://hdl.handle.net/11449/34886-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/34886-
dc.description.abstractSpongiolite from Mato Grosso do Sul (Brazil), natural inorganic composite constituted of silica needles, was treated with concentrated phosphoric acid at high temperatures. Superficial coating of the needles was proved to be constituted of silicon diphosphate, a compound offering six-coordinated silicon sites. Owing to the affinity of three charged ions to phosphate groups, this coating acts as specific adsorbent for the rare earth elements which prefer octahedral coordination (starting from samarium, yttrium included). The uptake of lanthanum and neodymium are significantly lower due to different coordination tendencies. Lanthanide fixation upon silica with PO4 groups anchored on its surface may be useful in the manufacturing of special phosphate-silicate glasses. (C) 2003 Elsevier B.V. All rights reserved.en
dc.format.extent980-983-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectspongolitept
dc.subjectspongiolitept
dc.subjectlanthanide sorptionpt
dc.subjectphosphate grouppt
dc.titlePhosphate functionalization of spongiolite surfaceen
dc.typeoutro-
dc.contributor.institutionUniversidade Federal de Mato Grosso do Sul (UFMS)-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUFMS, Dept Phys, BR-79070900 Campo Grande, MS, Brazil-
dc.description.affiliationUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil-
dc.description.affiliationUnespUNESP, Inst Chem, BR-14801970 Araraquara, SP, Brazil-
dc.identifier.doi10.1016/j.matchemphys.2003.08.011-
dc.identifier.wosWOS:000187239300071-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofMaterials Chemistry and Physics-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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