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Abstract:

Influences of pH and ionic strength on the aggregation of montmorillonite particles in the presence or absence of glyphosate (PMG) were studied. Adsorption isotherms and X-ray diffraction indicated that ligand exchange is the main mechanism of PMG adsorption. The surface coverage increased with the ionic strength and was more noticeable at high PMG concentration indicating inner-sphere surface complexation. At low PMG concentration the inner-sphere surface complexes are located of the external clay mineral surface while at high PMG concentration the surface complexes are also formed in the interlayer space. © 2006 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
Autor:Damonte, M.; Torres Sánchez, R.M.; dos Santos Afonso, M.
Filiación:Departamento de Química Inorgánica, Analítica y Química Física, INQUIMAE, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellon II, C1428EHA Buenos Aires, Argentina
CETMIC, Camino Centenario y 506, (b1897ZCA) M.B. Gonnet, Argentina
Palabras clave:Adsorption; Glyphosate; Montmorillonite; Thermal reaction; Adsorption; Adsorption isotherms; Agglomeration; Complexation; Ionic strength; Particles (particulate matter); pH effects; X ray diffraction analysis; Calcined form; Glyphosate; Surface complexation; Thermal reaction; Clay minerals; adsorption; aggregation; concentration (composition); glyphosate; ionic composition; isotherm; ligand; montmorillonite; pH; X-ray diffraction
Año:2007
Volumen:36
Número:1-3
Página de inicio:86
Página de fin:94
DOI: http://dx.doi.org/10.1016/j.clay.2006.04.015
Título revista:Applied Clay Science
Título revista abreviado:Appl. Clay Sci.
ISSN:01691317
CODEN:ACLSE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01691317_v36_n1-3_p86_Damonte

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Citas:

---------- APA ----------
Damonte, M., Torres Sánchez, R.M. & dos Santos Afonso, M. (2007) . Some aspects of the glyphosate adsorption on montmorillonite and its calcined form. Applied Clay Science, 36(1-3), 86-94.
http://dx.doi.org/10.1016/j.clay.2006.04.015
---------- CHICAGO ----------
Damonte, M., Torres Sánchez, R.M., dos Santos Afonso, M. "Some aspects of the glyphosate adsorption on montmorillonite and its calcined form" . Applied Clay Science 36, no. 1-3 (2007) : 86-94.
http://dx.doi.org/10.1016/j.clay.2006.04.015
---------- MLA ----------
Damonte, M., Torres Sánchez, R.M., dos Santos Afonso, M. "Some aspects of the glyphosate adsorption on montmorillonite and its calcined form" . Applied Clay Science, vol. 36, no. 1-3, 2007, pp. 86-94.
http://dx.doi.org/10.1016/j.clay.2006.04.015
---------- VANCOUVER ----------
Damonte, M., Torres Sánchez, R.M., dos Santos Afonso, M. Some aspects of the glyphosate adsorption on montmorillonite and its calcined form. Appl. Clay Sci. 2007;36(1-3):86-94.
http://dx.doi.org/10.1016/j.clay.2006.04.015