Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>

Autores
D'Alessandro, Oriana; Thomas, Horacio Jorge; Sambeth, Jorge Enrique
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Five MnOx-CeO2 samples with a molar ratio Mn-Ce between 0 and 100% were obtained by coprecipitation. The samples, which were called 10/0, 7/3, 5/5, 3/7, 0/10, were characterized by XRD, FTIR, XPS, specific surface area and TPR. Phenol was selected as pollutant. The adsorption of phenol from aqueous solution on Mn-Ce samples was investigated in a batch reactor at 25 and 50° C. The adsorption isotherms were described by Langmuir and Freundlich isotherm models and both model fitted. The characterization results showed the formation of solid solution where Mn3+ replaces Ce4+. The most active solid was Mn-Ce 7/3. The results showed that the adsorption process is a function of the Mn-Ce composition. Thermodynamics parameters ΔG0, ΔH0 and ΔS0 were calculated. These parameters indicated that the adsorption of phenol onto Mn-Ce was spontaneous and exothermic at 25 and 50 °C.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
Materia
Química
Adsorption
Phenol
MnOx-CeO2
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:10915/122482
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/122482
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>D'Alessandro, OrianaThomas, Horacio JorgeSambeth, Jorge EnriqueQuímicaAdsorptionPhenolMnOx-CeO2Five MnOx-CeO2 samples with a molar ratio Mn-Ce between 0 and 100% were obtained by coprecipitation. The samples, which were called 10/0, 7/3, 5/5, 3/7, 0/10, were characterized by XRD, FTIR, XPS, specific surface area and TPR. Phenol was selected as pollutant. The adsorption of phenol from aqueous solution on Mn-Ce samples was investigated in a batch reactor at 25 and 50° C. The adsorption isotherms were described by Langmuir and Freundlich isotherm models and both model fitted. The characterization results showed the formation of solid solution where Mn3+ replaces Ce4+. The most active solid was Mn-Ce 7/3. The results showed that the adsorption process is a function of the Mn-Ce composition. Thermodynamics parameters ΔG0, ΔH0 and ΔS0 were calculated. These parameters indicated that the adsorption of phenol onto Mn-Ce was spontaneous and exothermic at 25 and 50 °C.Centro de Investigación y Desarrollo en Ciencias Aplicadas2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf166-171http://sedici.unlp.edu.ar/handle/10915/122482enginfo:eu-repo/semantics/altIdentifier/issn/2211-5455info:eu-repo/semantics/altIdentifier/doi/10.2174/2211544702666131224233506info: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:UNLP2025-09-03T11:01:03Zoai:sedici.unlp.edu.ar:10915/122482Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:01:04.028SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
title Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
spellingShingle Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
D'Alessandro, Oriana
Química
Adsorption
Phenol
MnOx-CeO2
title_short Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
title_full Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
title_fullStr Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
title_full_unstemmed Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
title_sort Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO<SUB>2</SUB>
dc.creator.none.fl_str_mv D'Alessandro, Oriana
Thomas, Horacio Jorge
Sambeth, Jorge Enrique
author D'Alessandro, Oriana
author_facet D'Alessandro, Oriana
Thomas, Horacio Jorge
Sambeth, Jorge Enrique
author_role author
author2 Thomas, Horacio Jorge
Sambeth, Jorge Enrique
author2_role author
author
dc.subject.none.fl_str_mv Química
Adsorption
Phenol
MnOx-CeO2
topic Química
Adsorption
Phenol
MnOx-CeO2
dc.description.none.fl_txt_mv Five MnOx-CeO2 samples with a molar ratio Mn-Ce between 0 and 100% were obtained by coprecipitation. The samples, which were called 10/0, 7/3, 5/5, 3/7, 0/10, were characterized by XRD, FTIR, XPS, specific surface area and TPR. Phenol was selected as pollutant. The adsorption of phenol from aqueous solution on Mn-Ce samples was investigated in a batch reactor at 25 and 50° C. The adsorption isotherms were described by Langmuir and Freundlich isotherm models and both model fitted. The characterization results showed the formation of solid solution where Mn3+ replaces Ce4+. The most active solid was Mn-Ce 7/3. The results showed that the adsorption process is a function of the Mn-Ce composition. Thermodynamics parameters ΔG0, ΔH0 and ΔS0 were calculated. These parameters indicated that the adsorption of phenol onto Mn-Ce was spontaneous and exothermic at 25 and 50 °C.
Centro de Investigación y Desarrollo en Ciencias Aplicadas
description Five MnOx-CeO2 samples with a molar ratio Mn-Ce between 0 and 100% were obtained by coprecipitation. The samples, which were called 10/0, 7/3, 5/5, 3/7, 0/10, were characterized by XRD, FTIR, XPS, specific surface area and TPR. Phenol was selected as pollutant. The adsorption of phenol from aqueous solution on Mn-Ce samples was investigated in a batch reactor at 25 and 50° C. The adsorption isotherms were described by Langmuir and Freundlich isotherm models and both model fitted. The characterization results showed the formation of solid solution where Mn3+ replaces Ce4+. The most active solid was Mn-Ce 7/3. The results showed that the adsorption process is a function of the Mn-Ce composition. Thermodynamics parameters ΔG0, ΔH0 and ΔS0 were calculated. These parameters indicated that the adsorption of phenol onto Mn-Ce was spontaneous and exothermic at 25 and 50 °C.
publishDate 2014
dc.date.none.fl_str_mv 2014
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/10915/122482
url http://sedici.unlp.edu.ar/handle/10915/122482
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2211-5455
info:eu-repo/semantics/altIdentifier/doi/10.2174/2211544702666131224233506
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
166-171
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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