Some aspects of the glyphosate adsorption on montmorillonite and its calcined form

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...

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Autores principales: Damonte, M., Torres Sánchez, R.M., dos Santos Afonso, M.
Formato: JOUR
Materias:
Adsorption
Glyphosate
Montmorillonite
Thermal reaction
Adsorption isotherms
Agglomeration
Complexation
Ionic strength
Particles (particulate matter)
pH effects
X ray diffraction analysis
Calcined form
Surface complexation
Clay minerals
adsorption
aggregation
concentration (composition)
glyphosate
ionic composition
isotherm
ligand
montmorillonite
pH
X-ray diffraction
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01691317_v36_n1-3_p86_Damonte
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01691317_v36_n1-3_p86_Damonte
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spelling todo:paper_01691317_v36_n1-3_p86_Damonte2023-10-03T15:06:55Z Some aspects of the glyphosate adsorption on montmorillonite and its calcined form Damonte, M. Torres Sánchez, R.M. dos Santos Afonso, M. 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 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01691317_v36_n1-3_p86_Damonte
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic 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
spellingShingle 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
Damonte, M.
Torres Sánchez, R.M.
dos Santos Afonso, M.
Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
topic_facet 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
description 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.
format JOUR
author Damonte, M.
Torres Sánchez, R.M.
dos Santos Afonso, M.
author_facet Damonte, M.
Torres Sánchez, R.M.
dos Santos Afonso, M.
author_sort Damonte, M.
title Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
title_short Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
title_full Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
title_fullStr Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
title_full_unstemmed Some aspects of the glyphosate adsorption on montmorillonite and its calcined form
title_sort some aspects of the glyphosate adsorption on montmorillonite and its calcined form
url http://hdl.handle.net/20.500.12110/paper_01691317_v36_n1-3_p86_Damonte
work_keys_str_mv AT damontem someaspectsoftheglyphosateadsorptiononmontmorilloniteanditscalcinedform
AT torressanchezrm someaspectsoftheglyphosateadsorptiononmontmorilloniteanditscalcinedform
AT dossantosafonsom someaspectsoftheglyphosateadsorptiononmontmorilloniteanditscalcinedform
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