Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light

Autores
Nieto, J.; Freer, J.; Contreras, D.; Candal, Roberto Jorge; Sileo, Elsa Ester; Mansilla, H.D.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Titanium dioxide was obtained in its pure form (TiO2) and in the presence of urea (u-TiO2) and thiourea (t-TiO2) using the sol-gel technique. The obtained powders were characterized by BET surface area analysis, Infrared Spectroscopy, Diffuse Reflectance Spectroscopy and the Rietveld refinement of XRD measurements. All the prepared catalysts show high anatase content (>99%). The a and b-cell parameters of anatase increase in the order TiO2 < u-TiO2 < t-TiO2, while the c-parameter presents the opposite trend. Because of the interplay in cell dimensions, the cell grows thicker and shorter when prepared in the presence of urea and thiourea, respectively. The cell volume decreases in the order t-TiO2 > u-TiO2 > TiO2. The photocatalytic activities of the samples were determined on flumequine under solar-simulated irradiation. The most active catalysts were u-TiO2 and t-TiO2, reaching values over 90% of flumequine degradation after 15 min irradiation, compared with values of 55% for the pure TiO2 catalyst. Changing simultaneously the catalyst amount (t-TiO2) and pH, multivariate analysis using the response surface methodology was used to determine the roughly optimal conditions for flumequine degradation. The optimized conditions found were pH below 7 and a catalyst amount of 1.6 g L-1.
Fil: Nieto, J.. Universidad de Concepción; Chile
Fil: Freer, J.. Universidad de Concepción; Chile
Fil: Contreras, D.. Universidad de Concepción; Chile
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Sileo, Elsa Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Mansilla, H.D.. Universidad de Concepción; Chile
Materia
Antibiotic
Doped Titanium Dioxide
Flumequine
Photocatalysis
Sol-Gel
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:11336/83569
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/83569
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar lightNieto, J.Freer, J.Contreras, D.Candal, Roberto JorgeSileo, Elsa EsterMansilla, H.D.AntibioticDoped Titanium DioxideFlumequinePhotocatalysisSol-Gelhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Titanium dioxide was obtained in its pure form (TiO2) and in the presence of urea (u-TiO2) and thiourea (t-TiO2) using the sol-gel technique. The obtained powders were characterized by BET surface area analysis, Infrared Spectroscopy, Diffuse Reflectance Spectroscopy and the Rietveld refinement of XRD measurements. All the prepared catalysts show high anatase content (>99%). The a and b-cell parameters of anatase increase in the order TiO2 < u-TiO2 < t-TiO2, while the c-parameter presents the opposite trend. Because of the interplay in cell dimensions, the cell grows thicker and shorter when prepared in the presence of urea and thiourea, respectively. The cell volume decreases in the order t-TiO2 > u-TiO2 > TiO2. The photocatalytic activities of the samples were determined on flumequine under solar-simulated irradiation. The most active catalysts were u-TiO2 and t-TiO2, reaching values over 90% of flumequine degradation after 15 min irradiation, compared with values of 55% for the pure TiO2 catalyst. Changing simultaneously the catalyst amount (t-TiO2) and pH, multivariate analysis using the response surface methodology was used to determine the roughly optimal conditions for flumequine degradation. The optimized conditions found were pH below 7 and a catalyst amount of 1.6 g L-1.Fil: Nieto, J.. Universidad de Concepción; ChileFil: Freer, J.. Universidad de Concepción; ChileFil: Contreras, D.. Universidad de Concepción; ChileFil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Sileo, Elsa Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Mansilla, H.D.. Universidad de Concepción; ChileElsevier Science2008-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/83569Nieto, J.; Freer, J.; Contreras, D.; Candal, Roberto Jorge; Sileo, Elsa Ester; et al.; Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light; Elsevier Science; Journal of Hazardous Materials; 155; 1-2; 6-2008; 45-500304-3894CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304389407016378info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhazmat.2007.11.026info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:05:56Zoai:ri.conicet.gov.ar:11336/83569instacron: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:34982025-09-03 10:05:56.882CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
title Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
spellingShingle Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
Nieto, J.
Antibiotic
Doped Titanium Dioxide
Flumequine
Photocatalysis
Sol-Gel
title_short Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
title_full Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
title_fullStr Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
title_full_unstemmed Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
title_sort Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light
dc.creator.none.fl_str_mv Nieto, J.
Freer, J.
Contreras, D.
Candal, Roberto Jorge
Sileo, Elsa Ester
Mansilla, H.D.
author Nieto, J.
author_facet Nieto, J.
Freer, J.
Contreras, D.
Candal, Roberto Jorge
Sileo, Elsa Ester
Mansilla, H.D.
author_role author
author2 Freer, J.
Contreras, D.
Candal, Roberto Jorge
Sileo, Elsa Ester
Mansilla, H.D.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Antibiotic
Doped Titanium Dioxide
Flumequine
Photocatalysis
Sol-Gel
topic Antibiotic
Doped Titanium Dioxide
Flumequine
Photocatalysis
Sol-Gel
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Titanium dioxide was obtained in its pure form (TiO2) and in the presence of urea (u-TiO2) and thiourea (t-TiO2) using the sol-gel technique. The obtained powders were characterized by BET surface area analysis, Infrared Spectroscopy, Diffuse Reflectance Spectroscopy and the Rietveld refinement of XRD measurements. All the prepared catalysts show high anatase content (>99%). The a and b-cell parameters of anatase increase in the order TiO2 < u-TiO2 < t-TiO2, while the c-parameter presents the opposite trend. Because of the interplay in cell dimensions, the cell grows thicker and shorter when prepared in the presence of urea and thiourea, respectively. The cell volume decreases in the order t-TiO2 > u-TiO2 > TiO2. The photocatalytic activities of the samples were determined on flumequine under solar-simulated irradiation. The most active catalysts were u-TiO2 and t-TiO2, reaching values over 90% of flumequine degradation after 15 min irradiation, compared with values of 55% for the pure TiO2 catalyst. Changing simultaneously the catalyst amount (t-TiO2) and pH, multivariate analysis using the response surface methodology was used to determine the roughly optimal conditions for flumequine degradation. The optimized conditions found were pH below 7 and a catalyst amount of 1.6 g L-1.
Fil: Nieto, J.. Universidad de Concepción; Chile
Fil: Freer, J.. Universidad de Concepción; Chile
Fil: Contreras, D.. Universidad de Concepción; Chile
Fil: Candal, Roberto Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Sileo, Elsa Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Mansilla, H.D.. Universidad de Concepción; Chile
description Titanium dioxide was obtained in its pure form (TiO2) and in the presence of urea (u-TiO2) and thiourea (t-TiO2) using the sol-gel technique. The obtained powders were characterized by BET surface area analysis, Infrared Spectroscopy, Diffuse Reflectance Spectroscopy and the Rietveld refinement of XRD measurements. All the prepared catalysts show high anatase content (>99%). The a and b-cell parameters of anatase increase in the order TiO2 < u-TiO2 < t-TiO2, while the c-parameter presents the opposite trend. Because of the interplay in cell dimensions, the cell grows thicker and shorter when prepared in the presence of urea and thiourea, respectively. The cell volume decreases in the order t-TiO2 > u-TiO2 > TiO2. The photocatalytic activities of the samples were determined on flumequine under solar-simulated irradiation. The most active catalysts were u-TiO2 and t-TiO2, reaching values over 90% of flumequine degradation after 15 min irradiation, compared with values of 55% for the pure TiO2 catalyst. Changing simultaneously the catalyst amount (t-TiO2) and pH, multivariate analysis using the response surface methodology was used to determine the roughly optimal conditions for flumequine degradation. The optimized conditions found were pH below 7 and a catalyst amount of 1.6 g L-1.
publishDate 2008
dc.date.none.fl_str_mv 2008-06
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/11336/83569
Nieto, J.; Freer, J.; Contreras, D.; Candal, Roberto Jorge; Sileo, Elsa Ester; et al.; Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light; Elsevier Science; Journal of Hazardous Materials; 155; 1-2; 6-2008; 45-50
0304-3894
CONICET Digital
CONICET
url http://hdl.handle.net/11336/83569
identifier_str_mv Nieto, J.; Freer, J.; Contreras, D.; Candal, Roberto Jorge; Sileo, Elsa Ester; et al.; Photocatalyzed degradation of flumequine by doped TiO2 and simulated solar light; Elsevier Science; Journal of Hazardous Materials; 155; 1-2; 6-2008; 45-50
0304-3894
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0304389407016378
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jhazmat.2007.11.026
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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_ 1842269935081881600
score 13.13397

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