Adsorption of CuX2 (X = Cl-, Br-, and ClO4-) on a silica gel surface chemically modified with thiazolidine-2-thione from acetone and ethanol solutions

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorDias, N. L.-
Data de aceite: dc.date.accessioned2021-03-10T16:51:02Z-
Data de disponibilização: dc.date.available2021-03-10T16:51:02Z-
Data de envio: dc.date.issued2014-05-20-
Data de envio: dc.date.issued2014-05-20-
Data de envio: dc.date.issued1999-03-01-
Fonte completa do material: dc.identifierhttp://getinfo.de/app/Structural-variations-in-root-and-stem-wood-of/id/BLSE%3ARN209462216-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/10007-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/10007-
Descrição: dc.descriptionThe isotherms of adsorption of CuX2 (X = Cl-, Br, ClO4-,) by silica gel chemically modified with thiazolidine-2-thione were studied in acetone (ac) and ethanol (eth) solutions at 25 degrees C. The following equilibrium constants (in 1 mol(-1)) were determined: a) CuCl2, 1.9 x 10(3) (ac), 1.6 x 10(3) (eth); b) CuBr2, 1.7 x 10(3) (ac), 1.2 x 10(3) (eth); c) Cu(ClO4)(2), 1.1 x 10(3) (ac), 1.0 x 10(3) (eth). The electron spin resonance spectra of the surface complexes indicate a tetragonal distorted structure in the case of lower degrees of metal loading on the chemically modified surface. The d-d electronic transition spectra show that for the ClO4- complex, the peak of absorption did not change for any degree of metal loading, and for Cl- and Br complexes, the peak maxima shift to higher energy with lower metal loading.-
Formato: dc.format212-218-
Idioma: dc.languageen-
Publicador: dc.publisherMaik Nauka/interperiodica-
Relação: dc.relationColloid Journal-
Relação: dc.relation1.112-
Direitos: dc.rightsclosedAccess-
Título: dc.titleAdsorption of CuX2 (X = Cl-, Br-, and ClO4-) on a silica gel surface chemically modified with thiazolidine-2-thione from acetone and ethanol solutions-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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