Abstract:
Sorption of toluene and nitrobenzene by dodecyl sulfate intercalated-hydrotalcite was studied as a function of solute concentration. The correlation between the derived partition coefficients and the solubilities of the aromatic solutes in water indicates that the main sorption mechanism is partitioning. The partition behavior of nitrobenzene is Henry ideal, whereas the isotherm for toluene is convex, i.e., type III. These unlike behaviors are accounted for by casting the activity coefficients of the solutes solubilized within the hydrophobic interlamellar space of the hybrid-hydrotalcite in terms of the Flory-Huggins theory, the value of the mixing parameter determining the isotherm shape. © 2006 Elsevier B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Partition of non-ionic organics in hybrid-hydrotalcite/water systems |
Autor: | Jobbágy, M.; Regazzoni, A.E. |
Filiación: | INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon II, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina Unidad de Actividad Química, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. General Paz 1499, B1650KNA San Martín, Argentina Instituto de Tecnología Jorge A. Sábato, Universidad Nacional de General San Martín, Av. General Paz 1499, B1650KNA San Martín, Argentina
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Palabras clave: | Aromatic compounds; Hydrophobicity; Intercalation compounds; Sorption; Aromatic solutes; Mixing parameter; Nitrobenzene; Partition coefficients; Binary mixtures |
Año: | 2006
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Volumen: | 433
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Número: | 1-3
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Página de inicio: | 62
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Página de fin: | 66
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DOI: |
http://dx.doi.org/10.1016/j.cplett.2006.11.014 |
Título revista: | Chemical Physics Letters
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Título revista abreviado: | Chem. Phys. Lett.
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ISSN: | 00092614
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CODEN: | CHPLB
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00092614_v433_n1-3_p62_Jobbagy |
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Citas:
---------- APA ----------
Jobbágy, M. & Regazzoni, A.E.
(2006)
. Partition of non-ionic organics in hybrid-hydrotalcite/water systems. Chemical Physics Letters, 433(1-3), 62-66.
http://dx.doi.org/10.1016/j.cplett.2006.11.014---------- CHICAGO ----------
Jobbágy, M., Regazzoni, A.E.
"Partition of non-ionic organics in hybrid-hydrotalcite/water systems"
. Chemical Physics Letters 433, no. 1-3
(2006) : 62-66.
http://dx.doi.org/10.1016/j.cplett.2006.11.014---------- MLA ----------
Jobbágy, M., Regazzoni, A.E.
"Partition of non-ionic organics in hybrid-hydrotalcite/water systems"
. Chemical Physics Letters, vol. 433, no. 1-3, 2006, pp. 62-66.
http://dx.doi.org/10.1016/j.cplett.2006.11.014---------- VANCOUVER ----------
Jobbágy, M., Regazzoni, A.E. Partition of non-ionic organics in hybrid-hydrotalcite/water systems. Chem. Phys. Lett. 2006;433(1-3):62-66.
http://dx.doi.org/10.1016/j.cplett.2006.11.014