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Tzayhrí Gallardo-Velázquez ; Guillermo Osorio-Revilla ; Ma. del Socorro López-Cortez ;Journal of the Mexican Chemical Society 2010, 54 (2)

Author: Sofía Arellano-Cárdenas

Source: http://www.redalyc.org/


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Journal of the Mexican Chemical Society ISSN: 1870-249X editor.jmcs@gmail.com Sociedad Química de México México Arellano-Cárdenas, Sofía; Gallardo-Velázquez, Tzayhrí; Osorio-Revilla, Guillermo; López-Cortez, Ma. del Socorro Study of the Surface Charge of a Porous Clay Heterostructure (PCH) and Its Adsorption Capacity of Alkaline Metals Journal of the Mexican Chemical Society, vol.
54, núm.
2, abril-junio, 2010, pp.
92-97 Sociedad Química de México Distrito Federal, México Available in: http:--www.redalyc.org-articulo.oa?id=47519864005 How to cite Complete issue More information about this article Journals homepage in redalyc.org Scientific Information System Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Non-profit academic project, developed under the open access initiative Article J.
Mex.
Chem.
Soc.
2010, 54(2), 92-97 © 2010, Sociedad Química de México ISSN 1870-249X Study of the Surface Charge of a Porous Clay Heterostructure (PCH) and Its Adsorption Capacity of Alkaline Metals Sofía Arellano-Cárdenas,1 Tzayhrí Gallardo-Velázquez,1* Guillermo Osorio-Revilla,2 and Ma.
del Socorro López-Cortez1 1 2 Departamento de Biofísica.
Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional.
Plan de Ayala y Carpio, s-n.
Col.
Casco de Santo Tomás.
México, 11340.
D.
F.
Phone: (55) 57296000 ext.
62305.
tgallard@encb.ipn.mx Departamento de Ingeniería Bioquímica.
Escuela Nacional de Ciencias Biológicas del Instituto Politécnico Nacional. Received February 3, 2010; accepted April 21, 2010 Abstract: A Porous Clay Heterostructure (PCH) was prepared by chemical modification of a natural clay, by intercalation of a cationic surfactant.
Its surface charge properties as well as its adsorption capacity for alkali metals were studied using a potentiometric titration method.
The PCH developed a pH-dependent charge (sH), probably due to the presence of amphoteric silanol groups (SiO2) coming fr...





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