Humic acid interaction with clay minerals: modification of the surface properties by calcium presence

Autores
Fernández Solarte, Alejandra María; Fernández, Mariela Alejandra; dos Santos Afonso, María; Torres Sánchez, Rosa María
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The environmental importance of humic acid (HA) is mainly related to soil fertility, but it can also develop some human diseases by its intake as well as prevent calcium assimilation. Physicochemical characterisations of a montmorillonite (Mt) and its thermal treated product (Mt550), to which HA, Ca+2 or both were added, will help to better understand the surface behaviour of the binary or ternary systems. Calcium or HA adsorption produces a decrease of the Mt and Mt550 specific surface area (SSA). X-ray diffraction indicates calcium presence and no entrance of humic acid in the interlayer of Mt, while in the ternary systems (calcium-HA-Mt) a hindrance to the calcium entrance was observed. The opposite behaviour produces the adsorption of HA or calcium on electric charge of both samples. The mean pore diameter (MPD) for Mt increases with Ca+2 adsorption while no change was found after HA adsorption, in contrast to that found for Mt550.
Centro de Tecnología de Recursos Minerales y Cerámica
Materia
Química
Montmorillonite
Thermal treated montmorillonite
Porosity
Specific surface area
Humic acid
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/120049
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/120049
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Humic acid interaction with clay minerals: modification of the surface properties by calcium presenceFernández Solarte, Alejandra MaríaFernández, Mariela Alejandrados Santos Afonso, MaríaTorres Sánchez, Rosa MaríaQuímicaMontmorilloniteThermal treated montmorillonitePorositySpecific surface areaHumic acidThe environmental importance of humic acid (HA) is mainly related to soil fertility, but it can also develop some human diseases by its intake as well as prevent calcium assimilation. Physicochemical characterisations of a montmorillonite (Mt) and its thermal treated product (Mt550), to which HA, Ca+2 or both were added, will help to better understand the surface behaviour of the binary or ternary systems. Calcium or HA adsorption produces a decrease of the Mt and Mt550 specific surface area (SSA). X-ray diffraction indicates calcium presence and no entrance of humic acid in the interlayer of Mt, while in the ternary systems (calcium-HA-Mt) a hindrance to the calcium entrance was observed. The opposite behaviour produces the adsorption of HA or calcium on electric charge of both samples. The mean pore diameter (MPD) for Mt increases with Ca+2 adsorption while no change was found after HA adsorption, in contrast to that found for Mt550.Centro de Tecnología de Recursos Minerales y Cerámica2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf215-230http://sedici.unlp.edu.ar/handle/10915/120049enginfo:eu-repo/semantics/altIdentifier/issn/1743-4955info:eu-repo/semantics/altIdentifier/issn/1743-4963info:eu-repo/semantics/altIdentifier/doi/10.1504/IJENVH.2015.073196info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:28:24Zoai:sedici.unlp.edu.ar:10915/120049Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:28:24.644SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
title Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
spellingShingle Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
Fernández Solarte, Alejandra María
Química
Montmorillonite
Thermal treated montmorillonite
Porosity
Specific surface area
Humic acid
title_short Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
title_full Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
title_fullStr Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
title_full_unstemmed Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
title_sort Humic acid interaction with clay minerals: modification of the surface properties by calcium presence
dc.creator.none.fl_str_mv Fernández Solarte, Alejandra María
Fernández, Mariela Alejandra
dos Santos Afonso, María
Torres Sánchez, Rosa María
author Fernández Solarte, Alejandra María
author_facet Fernández Solarte, Alejandra María
Fernández, Mariela Alejandra
dos Santos Afonso, María
Torres Sánchez, Rosa María
author_role author
author2 Fernández, Mariela Alejandra
dos Santos Afonso, María
Torres Sánchez, Rosa María
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Montmorillonite
Thermal treated montmorillonite
Porosity
Specific surface area
Humic acid
topic Química
Montmorillonite
Thermal treated montmorillonite
Porosity
Specific surface area
Humic acid
dc.description.none.fl_txt_mv The environmental importance of humic acid (HA) is mainly related to soil fertility, but it can also develop some human diseases by its intake as well as prevent calcium assimilation. Physicochemical characterisations of a montmorillonite (Mt) and its thermal treated product (Mt550), to which HA, Ca+2 or both were added, will help to better understand the surface behaviour of the binary or ternary systems. Calcium or HA adsorption produces a decrease of the Mt and Mt550 specific surface area (SSA). X-ray diffraction indicates calcium presence and no entrance of humic acid in the interlayer of Mt, while in the ternary systems (calcium-HA-Mt) a hindrance to the calcium entrance was observed. The opposite behaviour produces the adsorption of HA or calcium on electric charge of both samples. The mean pore diameter (MPD) for Mt increases with Ca+2 adsorption while no change was found after HA adsorption, in contrast to that found for Mt550.
Centro de Tecnología de Recursos Minerales y Cerámica
description The environmental importance of humic acid (HA) is mainly related to soil fertility, but it can also develop some human diseases by its intake as well as prevent calcium assimilation. Physicochemical characterisations of a montmorillonite (Mt) and its thermal treated product (Mt550), to which HA, Ca+2 or both were added, will help to better understand the surface behaviour of the binary or ternary systems. Calcium or HA adsorption produces a decrease of the Mt and Mt550 specific surface area (SSA). X-ray diffraction indicates calcium presence and no entrance of humic acid in the interlayer of Mt, while in the ternary systems (calcium-HA-Mt) a hindrance to the calcium entrance was observed. The opposite behaviour produces the adsorption of HA or calcium on electric charge of both samples. The mean pore diameter (MPD) for Mt increases with Ca+2 adsorption while no change was found after HA adsorption, in contrast to that found for Mt550.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/120049
url http://sedici.unlp.edu.ar/handle/10915/120049
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1743-4955
info:eu-repo/semantics/altIdentifier/issn/1743-4963
info:eu-repo/semantics/altIdentifier/doi/10.1504/IJENVH.2015.073196
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
215-230
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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