Colombian clays binary mixtures: physical changes due to thermal treatments

Usually, smectite clays, which are used for catalytic purposes, are subjected to chemical and thermochemical treatments to enhance their surface features. This research aims to analyze textural and structural features of the physical mixtures of two Colombian smectite clays at room temperature and a...

Descripción completa

Detalles Bibliográficos
Autores: Betancourt Parra, Santiago, Domínguez Ortíz, Manuel Alejandro, Martínez Tejada, Leidy Marcela
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/136061
Acceso en línea:https://hdl.handle.net/11441/136061
https://doi.org/10.15446/dyna.v87n212.82285
Access Level:acceso abierto
Palabra clave:Colombian clays
Binary mixtures of clays
Physical changes of clays
Bentonite
Montmorillonite
id ES_3220eafdbd8cf6cdb3ce97e28351cd45
oai_identifier_str oai:idus.us.es:11441/136061
network_acronym_str ES
network_name_str España
repository_id_str
spelling Colombian clays binary mixtures: physical changes due to thermal treatmentsBetancourt Parra, SantiagoDomínguez Ortíz, Manuel AlejandroMartínez Tejada, Leidy MarcelaColombian claysBinary mixtures of claysPhysical changes of claysBentoniteMontmorilloniteUsually, smectite clays, which are used for catalytic purposes, are subjected to chemical and thermochemical treatments to enhance their surface features. This research aims to analyze textural and structural features of the physical mixtures of two Colombian smectite clays at room temperature and after the treatment at 600°C, 800°C, and 1000°C. The physical mixtures of two Colombian clays were characterized by X-ray techniques, thermal analysis, and BET surface area to evaluate physical changes resulting from the three thermal treatments. The results showed the appearance of microstructural changes in basal spacing and other crystals minerals because of the loss of carbonates and alkaline oxides in the clays. Additionally, a dramatic reduction in surface area features was evidenced by the temperature increase. Simultaneously, an increase in the pore size was also observed because of the increase of the temperature treatment. The results reveal that the physical mixture is not an appropriate solution to enhance the textural properties of the Colombian clays for sorption or catalytic purposes.UPB-VINCULO-COLCIENCIAS Project No 677B-08/16-18COLCIENCIAS contract FP44842-271-2016Universidad Nacional de ColombiaQuímica Inorgánica2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/136061https://doi.org/10.15446/dyna.v87n212.82285reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésDYNA, 87 (212), 73-79.https://dx.doi.org/10.15446/dyna.v87n212.82285info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1360612026-06-17T12:51:07Z
dc.title.none.fl_str_mv Colombian clays binary mixtures: physical changes due to thermal treatments
title Colombian clays binary mixtures: physical changes due to thermal treatments
spellingShingle Colombian clays binary mixtures: physical changes due to thermal treatments
Betancourt Parra, Santiago
Colombian clays
Binary mixtures of clays
Physical changes of clays
Bentonite
Montmorillonite
title_short Colombian clays binary mixtures: physical changes due to thermal treatments
title_full Colombian clays binary mixtures: physical changes due to thermal treatments
title_fullStr Colombian clays binary mixtures: physical changes due to thermal treatments
title_full_unstemmed Colombian clays binary mixtures: physical changes due to thermal treatments
title_sort Colombian clays binary mixtures: physical changes due to thermal treatments
dc.creator.none.fl_str_mv Betancourt Parra, Santiago
Domínguez Ortíz, Manuel Alejandro
Martínez Tejada, Leidy Marcela
author Betancourt Parra, Santiago
author_facet Betancourt Parra, Santiago
Domínguez Ortíz, Manuel Alejandro
Martínez Tejada, Leidy Marcela
author_role author
author2 Domínguez Ortíz, Manuel Alejandro
Martínez Tejada, Leidy Marcela
author2_role author
author
dc.contributor.none.fl_str_mv Química Inorgánica
dc.subject.none.fl_str_mv Colombian clays
Binary mixtures of clays
Physical changes of clays
Bentonite
Montmorillonite
topic Colombian clays
Binary mixtures of clays
Physical changes of clays
Bentonite
Montmorillonite
description Usually, smectite clays, which are used for catalytic purposes, are subjected to chemical and thermochemical treatments to enhance their surface features. This research aims to analyze textural and structural features of the physical mixtures of two Colombian smectite clays at room temperature and after the treatment at 600°C, 800°C, and 1000°C. The physical mixtures of two Colombian clays were characterized by X-ray techniques, thermal analysis, and BET surface area to evaluate physical changes resulting from the three thermal treatments. The results showed the appearance of microstructural changes in basal spacing and other crystals minerals because of the loss of carbonates and alkaline oxides in the clays. Additionally, a dramatic reduction in surface area features was evidenced by the temperature increase. Simultaneously, an increase in the pore size was also observed because of the increase of the temperature treatment. The results reveal that the physical mixture is not an appropriate solution to enhance the textural properties of the Colombian clays for sorption or catalytic purposes.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/136061
https://doi.org/10.15446/dyna.v87n212.82285
url https://hdl.handle.net/11441/136061
https://doi.org/10.15446/dyna.v87n212.82285
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv DYNA, 87 (212), 73-79.
https://dx.doi.org/10.15446/dyna.v87n212.82285
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidad Nacional de Colombia
publisher.none.fl_str_mv Universidad Nacional de Colombia
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405655857627136
score 15.300719

Similares en LA Referencia