Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths

Autores
Jaworski, María Angélica; Barbero, Bibiana P.; Siri, Guillermo Jorge; Casella, Mónica Laura
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Structured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) were prepared and deposited on cordierite monoliths by washcoating. The effect of suspension concentration, the particle size, the immersion number, the use of suspension stabilizer agent, and an alumina precoating on the coating adherence and catalytic performance were studied. All the prepared structured catalysts were active for the elimination of NO3 - and presented good selectivity to N2 (> 93%) in synthetic water samples. The catalyst performance was related to the amount of deposited catalyst. The highest activity and the best coating adherence were obtained with the structured catalyst prepared by a single immersion in a 14 wt% concentration suspension, which was obtained from the powder catalyst milled for 10 h and stabilized with colloidal alumina. This catalyst also showed good activity when it was reused for four cycles and when it was evaluated with real water samples.
Facultad de Ciencias Exactas
Facultad de Ingeniería
Materia
Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/108478
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/108478
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monolithsJaworski, María AngélicaBarbero, Bibiana P.Siri, Guillermo JorgeCasella, Mónica LauraQuímicaWater pollutionNitrateCordierite monolithsPdCu catalystStructured catalystStructured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) were prepared and deposited on cordierite monoliths by washcoating. The effect of suspension concentration, the particle size, the immersion number, the use of suspension stabilizer agent, and an alumina precoating on the coating adherence and catalytic performance were studied. All the prepared structured catalysts were active for the elimination of NO3 - and presented good selectivity to N2 (> 93%) in synthetic water samples. The catalyst performance was related to the amount of deposited catalyst. The highest activity and the best coating adherence were obtained with the structured catalyst prepared by a single immersion in a 14 wt% concentration suspension, which was obtained from the powder catalyst milled for 10 h and stabilized with colloidal alumina. This catalyst also showed good activity when it was reused for four cycles and when it was evaluated with real water samples.Facultad de Ciencias ExactasFacultad de Ingeniería2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf705-715http://sedici.unlp.edu.ar/handle/10915/108478enginfo:eu-repo/semantics/altIdentifier/issn/0104-6632info:eu-repo/semantics/altIdentifier/doi/10.1590/0104-6632.20190362s20180292info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:56:47Zoai:sedici.unlp.edu.ar:10915/108478Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:56:47.59SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
spellingShingle Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
Jaworski, María Angélica
Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
title_short Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_full Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_fullStr Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_full_unstemmed Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
title_sort Removal of nitrate from drinking water by using PdCu structured catalysts based on cordierite monoliths
dc.creator.none.fl_str_mv Jaworski, María Angélica
Barbero, Bibiana P.
Siri, Guillermo Jorge
Casella, Mónica Laura
author Jaworski, María Angélica
author_facet Jaworski, María Angélica
Barbero, Bibiana P.
Siri, Guillermo Jorge
Casella, Mónica Laura
author_role author
author2 Barbero, Bibiana P.
Siri, Guillermo Jorge
Casella, Mónica Laura
author2_role author
author
author
dc.subject.none.fl_str_mv Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
topic Química
Water pollution
Nitrate
Cordierite monoliths
PdCu catalyst
Structured catalyst
dc.description.none.fl_txt_mv Structured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) were prepared and deposited on cordierite monoliths by washcoating. The effect of suspension concentration, the particle size, the immersion number, the use of suspension stabilizer agent, and an alumina precoating on the coating adherence and catalytic performance were studied. All the prepared structured catalysts were active for the elimination of NO3 - and presented good selectivity to N2 (> 93%) in synthetic water samples. The catalyst performance was related to the amount of deposited catalyst. The highest activity and the best coating adherence were obtained with the structured catalyst prepared by a single immersion in a 14 wt% concentration suspension, which was obtained from the powder catalyst milled for 10 h and stabilized with colloidal alumina. This catalyst also showed good activity when it was reused for four cycles and when it was evaluated with real water samples.
Facultad de Ciencias Exactas
Facultad de Ingeniería
description Structured catalysts were prepared, characterized and evaluated in NO3 - removal from drinking water. Different suspensions containing a previously optimized PdCu/5wt% ZrO2-Al2O3 powder catalyst (hereinafter PdCu/5ZAp) were prepared and deposited on cordierite monoliths by washcoating. The effect of suspension concentration, the particle size, the immersion number, the use of suspension stabilizer agent, and an alumina precoating on the coating adherence and catalytic performance were studied. All the prepared structured catalysts were active for the elimination of NO3 - and presented good selectivity to N2 (> 93%) in synthetic water samples. The catalyst performance was related to the amount of deposited catalyst. The highest activity and the best coating adherence were obtained with the structured catalyst prepared by a single immersion in a 14 wt% concentration suspension, which was obtained from the powder catalyst milled for 10 h and stabilized with colloidal alumina. This catalyst also showed good activity when it was reused for four cycles and when it was evaluated with real water samples.
publishDate 2019
dc.date.none.fl_str_mv 2019
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/10915/108478
url http://sedici.unlp.edu.ar/handle/10915/108478
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0104-6632
info:eu-repo/semantics/altIdentifier/doi/10.1590/0104-6632.20190362s20180292
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
705-715
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 13.13397

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