Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process

Autores
Gomis, Juan; Vercher, Rosa; Amat, Ana M.; Martire, Daniel Osvaldo; Gonzalez, Monica Cristina; Bianco Prevot, Alessandra; Montoneri, Enzo; Arques, Antonio; Carlos, Luciano
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Soluble bio-organic substances (SBO) isolated from urban biorefuses have been investigated in photocatalytic processes for wastewater treatment using a cationic dye, namely crystal violet (CV) as target compound. The SBO have been found to enhance the photobleaching of CV solutions with an optimal SBO concentration of ca. 20 mg L-1. Mechanistic investigation based on chemical probes and changes in the absorption spectrum of CV in the presence of SBO seems to indicate that a complex formed between sensitizer and substrate plays a major role in the process. SBO have also been tested for the implementation of photo-Fenton processes at circumneutral media: the observed pseudo first order rate constants for CV decoloration was higher for UV/SBO/Fe(II)/H2O2 (5.5 × 10-3 min -1) than for UV/Fe(II)/H2O2 (1.5 × 10-3 min-1). A modified mechanism, in which HO are less relevant that at the acidic medium, is in agreement with results of experiments carried out with chemical probes.
Fil: Gomis, Juan. Universidad Politécnica de Valencia; España
Fil: Vercher, Rosa. Universidad Politécnica de Valencia; España
Fil: Amat, Ana M.. Universidad Politécnica de Valencia; España
Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Bianco Prevot, Alessandra. Università di Torino. Dipartimento di Chimica; Italia
Fil: Montoneri, Enzo. Università di Torino. Dipartimento di Chimica; Italia
Fil: Arques, Antonio. Universidad Politécnica de Valencia; España
Fil: Carlos, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Materia
Cationic Dyes
Organic Biosurfactant
Photo-Fenton
Waste Valorization
Water Treatment
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/82164
Acceder
id CONICETDig_ee135543bbc056cf8ea9b58ec196c08d
oai_identifier_str oai:ri.conicet.gov.ar:11336/82164
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like processGomis, JuanVercher, RosaAmat, Ana M.Martire, Daniel OsvaldoGonzalez, Monica CristinaBianco Prevot, AlessandraMontoneri, EnzoArques, AntonioCarlos, LucianoCationic DyesOrganic BiosurfactantPhoto-FentonWaste ValorizationWater Treatmenthttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Soluble bio-organic substances (SBO) isolated from urban biorefuses have been investigated in photocatalytic processes for wastewater treatment using a cationic dye, namely crystal violet (CV) as target compound. The SBO have been found to enhance the photobleaching of CV solutions with an optimal SBO concentration of ca. 20 mg L-1. Mechanistic investigation based on chemical probes and changes in the absorption spectrum of CV in the presence of SBO seems to indicate that a complex formed between sensitizer and substrate plays a major role in the process. SBO have also been tested for the implementation of photo-Fenton processes at circumneutral media: the observed pseudo first order rate constants for CV decoloration was higher for UV/SBO/Fe(II)/H2O2 (5.5 × 10-3 min -1) than for UV/Fe(II)/H2O2 (1.5 × 10-3 min-1). A modified mechanism, in which HO are less relevant that at the acidic medium, is in agreement with results of experiments carried out with chemical probes.Fil: Gomis, Juan. Universidad Politécnica de Valencia; EspañaFil: Vercher, Rosa. Universidad Politécnica de Valencia; EspañaFil: Amat, Ana M.. Universidad Politécnica de Valencia; EspañaFil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Bianco Prevot, Alessandra. Università di Torino. Dipartimento di Chimica; ItaliaFil: Montoneri, Enzo. Università di Torino. Dipartimento di Chimica; ItaliaFil: Arques, Antonio. Universidad Politécnica de Valencia; EspañaFil: Carlos, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaElsevier Science2013-06-15info: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/11336/82164Gomis, Juan; Vercher, Rosa; Amat, Ana M.; Martire, Daniel Osvaldo; Gonzalez, Monica Cristina; et al.; Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process; Elsevier Science; Catalysis Today; 209; 15-6-2013; 176-1800920-5861CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0920586112006074info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2012.08.036info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:31:10Zoai:ri.conicet.gov.ar:11336/82164instacron: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:34982025-09-29 10:31:11.173CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
title Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
spellingShingle Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
Gomis, Juan
Cationic Dyes
Organic Biosurfactant
Photo-Fenton
Waste Valorization
Water Treatment
title_short Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
title_full Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
title_fullStr Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
title_full_unstemmed Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
title_sort Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process
dc.creator.none.fl_str_mv Gomis, Juan
Vercher, Rosa
Amat, Ana M.
Martire, Daniel Osvaldo
Gonzalez, Monica Cristina
Bianco Prevot, Alessandra
Montoneri, Enzo
Arques, Antonio
Carlos, Luciano
author Gomis, Juan
author_facet Gomis, Juan
Vercher, Rosa
Amat, Ana M.
Martire, Daniel Osvaldo
Gonzalez, Monica Cristina
Bianco Prevot, Alessandra
Montoneri, Enzo
Arques, Antonio
Carlos, Luciano
author_role author
author2 Vercher, Rosa
Amat, Ana M.
Martire, Daniel Osvaldo
Gonzalez, Monica Cristina
Bianco Prevot, Alessandra
Montoneri, Enzo
Arques, Antonio
Carlos, Luciano
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Cationic Dyes
Organic Biosurfactant
Photo-Fenton
Waste Valorization
Water Treatment
topic Cationic Dyes
Organic Biosurfactant
Photo-Fenton
Waste Valorization
Water Treatment
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Soluble bio-organic substances (SBO) isolated from urban biorefuses have been investigated in photocatalytic processes for wastewater treatment using a cationic dye, namely crystal violet (CV) as target compound. The SBO have been found to enhance the photobleaching of CV solutions with an optimal SBO concentration of ca. 20 mg L-1. Mechanistic investigation based on chemical probes and changes in the absorption spectrum of CV in the presence of SBO seems to indicate that a complex formed between sensitizer and substrate plays a major role in the process. SBO have also been tested for the implementation of photo-Fenton processes at circumneutral media: the observed pseudo first order rate constants for CV decoloration was higher for UV/SBO/Fe(II)/H2O2 (5.5 × 10-3 min -1) than for UV/Fe(II)/H2O2 (1.5 × 10-3 min-1). A modified mechanism, in which HO are less relevant that at the acidic medium, is in agreement with results of experiments carried out with chemical probes.
Fil: Gomis, Juan. Universidad Politécnica de Valencia; España
Fil: Vercher, Rosa. Universidad Politécnica de Valencia; España
Fil: Amat, Ana M.. Universidad Politécnica de Valencia; España
Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Gonzalez, Monica Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Bianco Prevot, Alessandra. Università di Torino. Dipartimento di Chimica; Italia
Fil: Montoneri, Enzo. Università di Torino. Dipartimento di Chimica; Italia
Fil: Arques, Antonio. Universidad Politécnica de Valencia; España
Fil: Carlos, Luciano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
description Soluble bio-organic substances (SBO) isolated from urban biorefuses have been investigated in photocatalytic processes for wastewater treatment using a cationic dye, namely crystal violet (CV) as target compound. The SBO have been found to enhance the photobleaching of CV solutions with an optimal SBO concentration of ca. 20 mg L-1. Mechanistic investigation based on chemical probes and changes in the absorption spectrum of CV in the presence of SBO seems to indicate that a complex formed between sensitizer and substrate plays a major role in the process. SBO have also been tested for the implementation of photo-Fenton processes at circumneutral media: the observed pseudo first order rate constants for CV decoloration was higher for UV/SBO/Fe(II)/H2O2 (5.5 × 10-3 min -1) than for UV/Fe(II)/H2O2 (1.5 × 10-3 min-1). A modified mechanism, in which HO are less relevant that at the acidic medium, is in agreement with results of experiments carried out with chemical probes.
publishDate 2013
dc.date.none.fl_str_mv 2013-06-15
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/11336/82164
Gomis, Juan; Vercher, Rosa; Amat, Ana M.; Martire, Daniel Osvaldo; Gonzalez, Monica Cristina; et al.; Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process; Elsevier Science; Catalysis Today; 209; 15-6-2013; 176-180
0920-5861
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82164
identifier_str_mv Gomis, Juan; Vercher, Rosa; Amat, Ana M.; Martire, Daniel Osvaldo; Gonzalez, Monica Cristina; et al.; Application of soluble bio-organic substances (SBO) as photocatalysts for wastewater treatment: Sensitizing effect and photo-Fenton-like process; Elsevier Science; Catalysis Today; 209; 15-6-2013; 176-180
0920-5861
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/S0920586112006074
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cattod.2012.08.036
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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
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score 13.070432

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