Basic treatment in natural clinoptilolite for improvement of physicochemical properties

Autores
Castro de Souza, Vanessa; Villarroel Rocha, Jhonny; Gomes de Araújo, Maria José; Sapag, Manuel Karim; Pergher, Sibele
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Natural zeolites are low in cost and exhibit interesting properties for applications in adsorption and catalysis. However, the fact that they are natural materials, not obtained in pure form, and can incorporate various compensating ions can compromise their properties and restrict their use. As their textural and chemical properties are of great relevance for adsorption and catalysis applications, this work aims to study the modification of the natural zeolite clinoptilolite to obtain materials with better physicochemical properties. Clinoptilolite was treated with NaOH under various conditions. The treated material was characterized by X-ray diffraction, X-ray fluorescence, N2 adsorption and desorption at 77 K, CO2 adsorption at 273 K, and pyridine adsorption. The treatment allowed the removal of silicon from the material, improving the textural properties and preserving the structural Al. With the removal of Si, the Si/Al ratio decreased, and consequently, the number of acid and adsorptive sites increased. In addition, statistical planning revealed that the concentration of NaOH is the parameter that most influences the improvement of the textural properties.
Fil: Castro de Souza, Vanessa. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Gomes de Araújo, Maria José. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Pergher, Sibele. Universidade Federal do Rio Grande do Norte; Brasil
Materia
NATURAL ZEOLITE
CLINOPTILOLITE
DESILICATION
TEXTURAL PROPERTIES
ACIDITY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/125678
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/125678
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Basic treatment in natural clinoptilolite for improvement of physicochemical propertiesCastro de Souza, VanessaVillarroel Rocha, JhonnyGomes de Araújo, Maria JoséSapag, Manuel KarimPergher, SibeleNATURAL ZEOLITECLINOPTILOLITEDESILICATIONTEXTURAL PROPERTIESACIDITYhttps://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Natural zeolites are low in cost and exhibit interesting properties for applications in adsorption and catalysis. However, the fact that they are natural materials, not obtained in pure form, and can incorporate various compensating ions can compromise their properties and restrict their use. As their textural and chemical properties are of great relevance for adsorption and catalysis applications, this work aims to study the modification of the natural zeolite clinoptilolite to obtain materials with better physicochemical properties. Clinoptilolite was treated with NaOH under various conditions. The treated material was characterized by X-ray diffraction, X-ray fluorescence, N2 adsorption and desorption at 77 K, CO2 adsorption at 273 K, and pyridine adsorption. The treatment allowed the removal of silicon from the material, improving the textural properties and preserving the structural Al. With the removal of Si, the Si/Al ratio decreased, and consequently, the number of acid and adsorptive sites increased. In addition, statistical planning revealed that the concentration of NaOH is the parameter that most influences the improvement of the textural properties.Fil: Castro de Souza, Vanessa. Universidade Federal do Rio Grande do Norte; BrasilFil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaFil: Gomes de Araújo, Maria José. Universidade Federal do Rio Grande do Norte; BrasilFil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; ArgentinaFil: Pergher, Sibele. Universidade Federal do Rio Grande do Norte; BrasilMDPI Multidisciplinary Digital Publishing Institute2018-12-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/125678Castro de Souza, Vanessa; Villarroel Rocha, Jhonny; Gomes de Araújo, Maria José; Sapag, Manuel Karim; Pergher, Sibele; Basic treatment in natural clinoptilolite for improvement of physicochemical properties; MDPI Multidisciplinary Digital Publishing Institute; Minerals; 8; 12; 14-12-2018; 1-14; 5952075-163XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2075-163X/8/12/595info:eu-repo/semantics/altIdentifier/doi/10.3390/min8120595info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:17:12Zoai:ri.conicet.gov.ar:11336/125678instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:17:12.544CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Basic treatment in natural clinoptilolite for improvement of physicochemical properties
title Basic treatment in natural clinoptilolite for improvement of physicochemical properties
spellingShingle Basic treatment in natural clinoptilolite for improvement of physicochemical properties
Castro de Souza, Vanessa
NATURAL ZEOLITE
CLINOPTILOLITE
DESILICATION
TEXTURAL PROPERTIES
ACIDITY
title_short Basic treatment in natural clinoptilolite for improvement of physicochemical properties
title_full Basic treatment in natural clinoptilolite for improvement of physicochemical properties
title_fullStr Basic treatment in natural clinoptilolite for improvement of physicochemical properties
title_full_unstemmed Basic treatment in natural clinoptilolite for improvement of physicochemical properties
title_sort Basic treatment in natural clinoptilolite for improvement of physicochemical properties
dc.creator.none.fl_str_mv Castro de Souza, Vanessa
Villarroel Rocha, Jhonny
Gomes de Araújo, Maria José
Sapag, Manuel Karim
Pergher, Sibele
author Castro de Souza, Vanessa
author_facet Castro de Souza, Vanessa
Villarroel Rocha, Jhonny
Gomes de Araújo, Maria José
Sapag, Manuel Karim
Pergher, Sibele
author_role author
author2 Villarroel Rocha, Jhonny
Gomes de Araújo, Maria José
Sapag, Manuel Karim
Pergher, Sibele
author2_role author
author
author
author
dc.subject.none.fl_str_mv NATURAL ZEOLITE
CLINOPTILOLITE
DESILICATION
TEXTURAL PROPERTIES
ACIDITY
topic NATURAL ZEOLITE
CLINOPTILOLITE
DESILICATION
TEXTURAL PROPERTIES
ACIDITY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.10
https://purl.org/becyt/ford/2
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Natural zeolites are low in cost and exhibit interesting properties for applications in adsorption and catalysis. However, the fact that they are natural materials, not obtained in pure form, and can incorporate various compensating ions can compromise their properties and restrict their use. As their textural and chemical properties are of great relevance for adsorption and catalysis applications, this work aims to study the modification of the natural zeolite clinoptilolite to obtain materials with better physicochemical properties. Clinoptilolite was treated with NaOH under various conditions. The treated material was characterized by X-ray diffraction, X-ray fluorescence, N2 adsorption and desorption at 77 K, CO2 adsorption at 273 K, and pyridine adsorption. The treatment allowed the removal of silicon from the material, improving the textural properties and preserving the structural Al. With the removal of Si, the Si/Al ratio decreased, and consequently, the number of acid and adsorptive sites increased. In addition, statistical planning revealed that the concentration of NaOH is the parameter that most influences the improvement of the textural properties.
Fil: Castro de Souza, Vanessa. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Villarroel Rocha, Jhonny. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Gomes de Araújo, Maria José. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Sapag, Manuel Karim. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich". Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales. Instituto de Física Aplicada "Dr. Jorge Andrés Zgrablich"; Argentina
Fil: Pergher, Sibele. Universidade Federal do Rio Grande do Norte; Brasil
description Natural zeolites are low in cost and exhibit interesting properties for applications in adsorption and catalysis. However, the fact that they are natural materials, not obtained in pure form, and can incorporate various compensating ions can compromise their properties and restrict their use. As their textural and chemical properties are of great relevance for adsorption and catalysis applications, this work aims to study the modification of the natural zeolite clinoptilolite to obtain materials with better physicochemical properties. Clinoptilolite was treated with NaOH under various conditions. The treated material was characterized by X-ray diffraction, X-ray fluorescence, N2 adsorption and desorption at 77 K, CO2 adsorption at 273 K, and pyridine adsorption. The treatment allowed the removal of silicon from the material, improving the textural properties and preserving the structural Al. With the removal of Si, the Si/Al ratio decreased, and consequently, the number of acid and adsorptive sites increased. In addition, statistical planning revealed that the concentration of NaOH is the parameter that most influences the improvement of the textural properties.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-14
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/125678
Castro de Souza, Vanessa; Villarroel Rocha, Jhonny; Gomes de Araújo, Maria José; Sapag, Manuel Karim; Pergher, Sibele; Basic treatment in natural clinoptilolite for improvement of physicochemical properties; MDPI Multidisciplinary Digital Publishing Institute; Minerals; 8; 12; 14-12-2018; 1-14; 595
2075-163X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/125678
identifier_str_mv Castro de Souza, Vanessa; Villarroel Rocha, Jhonny; Gomes de Araújo, Maria José; Sapag, Manuel Karim; Pergher, Sibele; Basic treatment in natural clinoptilolite for improvement of physicochemical properties; MDPI Multidisciplinary Digital Publishing Institute; Minerals; 8; 12; 14-12-2018; 1-14; 595
2075-163X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.mdpi.com/2075-163X/8/12/595
info:eu-repo/semantics/altIdentifier/doi/10.3390/min8120595
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv MDPI Multidisciplinary Digital Publishing Institute
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1842980941042024448
score 12.993085

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