Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes

Autores
Hernández, Laura; Godin, Robert; Bergkamp, Jesse J.; Llansola Portolés, Manuel Jose; Sherman, Benjamin D.; Tomlin, John; Kodis, Gerdenis; Méndez Hernández, Dalvin D.; Bertolotti, Sonia Graciela; Chesta, Carlos Alberto; Mariño Ochoa, Ernesto; Moore, Ana L.; Moore, Thomas A.; Cosa, Gonzalo; Palacios, Rodrigo Emiliano
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We report on the photosensitization of titanium dioxide nanoparticles (TiO2 NPs) synthesized inside AOT (bis(2-ethylhexyl) sulfosuccinate sodium salt) reverse micelles following photoexcitation of perylene derivatives with dicarboxylate anchoring groups. The dyes, 1,7-dibromoperylene-3,4,9,10-tetracarboxy dianhydride (1), 1,7-dipyrrolidinylperylene-3,4,9,10-tetracarboxy dianhydride (2), and 1,7-bis(4-tert-butylphenyloxy)perylene-3,4,9,10-tetracarboxy dianhydride (3), have considerably different driving forces for photoinduced electron injection into the TiO2 conduction band, as estimated by electrochemical measurements and quantum mechanical calculations. Fluorescence anisotropy measurements indicate that dyes 1 and 2 are preferentially solubilized in the micellar structure, creating a relatively large local concentration that favors the attachment of the dye to the TiO2 surface. The binding process was followed by monitoring the hypsochromic shift of the dye absorption spectra over time for 1 and 2. Photoinduced electron transfer from the singlet excited state of 1 and 2 to the TiO2 conduction band (CB) is indicated by emission quenching of the TiO2-bound form of the dyes and confirmed by transient absorption measurements of the radical cation of the dyes and free carriers (injected electrons) in the TiO2 semiconductor. Steady state and transient spectroscopy indicate that dye 3 does not bind to the TiO2 NPs and does not photosensitize the semiconductor. This observation was rationalized as a consequence of the bulky t-butylphenyloxy groups which create a strong steric impediment for deep access of the dye within the micelle structure to reach the semiconductor oxide surface.
Fil: Hernández, Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Godin, Robert. McGill University; Canadá
Fil: Bergkamp, Jesse J.. Arizona State University; Estados Unidos
Fil: Llansola Portolés, Manuel Jose. Arizona State University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sherman, Benjamin D.. Arizona State University; Estados Unidos
Fil: Tomlin, John. Arizona State University; Estados Unidos
Fil: Kodis, Gerdenis. Arizona State University; Estados Unidos
Fil: Méndez Hernández, Dalvin D.. Arizona State University; Estados Unidos
Fil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chesta, Carlos Alberto. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mariño Ochoa, Ernesto. Tecnológico de Monterrey; México
Fil: Moore, Ana L.. Arizona State University; Estados Unidos
Fil: Moore, Thomas A.. Arizona State University; Estados Unidos
Fil: Cosa, Gonzalo. McGill University; Canadá
Fil: Palacios, Rodrigo Emiliano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Photosensitization
Nanoparticles
Micelles
Perylenes
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:11336/29066
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/29066
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by PerylenesHernández, LauraGodin, RobertBergkamp, Jesse J.Llansola Portolés, Manuel JoseSherman, Benjamin D.Tomlin, JohnKodis, GerdenisMéndez Hernández, Dalvin D.Bertolotti, Sonia GracielaChesta, Carlos AlbertoMariño Ochoa, ErnestoMoore, Ana L.Moore, Thomas A.Cosa, GonzaloPalacios, Rodrigo EmilianoPhotosensitizationNanoparticlesMicellesPeryleneshttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1We report on the photosensitization of titanium dioxide nanoparticles (TiO2 NPs) synthesized inside AOT (bis(2-ethylhexyl) sulfosuccinate sodium salt) reverse micelles following photoexcitation of perylene derivatives with dicarboxylate anchoring groups. The dyes, 1,7-dibromoperylene-3,4,9,10-tetracarboxy dianhydride (1), 1,7-dipyrrolidinylperylene-3,4,9,10-tetracarboxy dianhydride (2), and 1,7-bis(4-tert-butylphenyloxy)perylene-3,4,9,10-tetracarboxy dianhydride (3), have considerably different driving forces for photoinduced electron injection into the TiO2 conduction band, as estimated by electrochemical measurements and quantum mechanical calculations. Fluorescence anisotropy measurements indicate that dyes 1 and 2 are preferentially solubilized in the micellar structure, creating a relatively large local concentration that favors the attachment of the dye to the TiO2 surface. The binding process was followed by monitoring the hypsochromic shift of the dye absorption spectra over time for 1 and 2. Photoinduced electron transfer from the singlet excited state of 1 and 2 to the TiO2 conduction band (CB) is indicated by emission quenching of the TiO2-bound form of the dyes and confirmed by transient absorption measurements of the radical cation of the dyes and free carriers (injected electrons) in the TiO2 semiconductor. Steady state and transient spectroscopy indicate that dye 3 does not bind to the TiO2 NPs and does not photosensitize the semiconductor. This observation was rationalized as a consequence of the bulky t-butylphenyloxy groups which create a strong steric impediment for deep access of the dye within the micelle structure to reach the semiconductor oxide surface.Fil: Hernández, Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Godin, Robert. McGill University; CanadáFil: Bergkamp, Jesse J.. Arizona State University; Estados UnidosFil: Llansola Portolés, Manuel Jose. Arizona State University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sherman, Benjamin D.. Arizona State University; Estados UnidosFil: Tomlin, John. Arizona State University; Estados UnidosFil: Kodis, Gerdenis. Arizona State University; Estados UnidosFil: Méndez Hernández, Dalvin D.. Arizona State University; Estados UnidosFil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Chesta, Carlos Alberto. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Mariño Ochoa, Ernesto. Tecnológico de Monterrey; MéxicoFil: Moore, Ana L.. Arizona State University; Estados UnidosFil: Moore, Thomas A.. Arizona State University; Estados UnidosFil: Cosa, Gonzalo. McGill University; CanadáFil: Palacios, Rodrigo Emiliano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Chemical Society2012-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/29066Hernández, Laura; Godin, Robert; Bergkamp, Jesse J.; Llansola Portolés, Manuel Jose; Sherman, Benjamin D.; et al.; Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes; American Chemical Society; Journal of Physical Chemistry B; 117; 16; 11-2012; 4568-45811520-6106CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/jp3086792info:eu-repo/semantics/altIdentifier/doi/10.1021/jp3086792info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:56:42Zoai:ri.conicet.gov.ar:11336/29066instacron: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 09:56:43.133CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
title Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
spellingShingle Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
Hernández, Laura
Photosensitization
Nanoparticles
Micelles
Perylenes
title_short Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
title_full Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
title_fullStr Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
title_full_unstemmed Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
title_sort Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes
dc.creator.none.fl_str_mv Hernández, Laura
Godin, Robert
Bergkamp, Jesse J.
Llansola Portolés, Manuel Jose
Sherman, Benjamin D.
Tomlin, John
Kodis, Gerdenis
Méndez Hernández, Dalvin D.
Bertolotti, Sonia Graciela
Chesta, Carlos Alberto
Mariño Ochoa, Ernesto
Moore, Ana L.
Moore, Thomas A.
Cosa, Gonzalo
Palacios, Rodrigo Emiliano
author Hernández, Laura
author_facet Hernández, Laura
Godin, Robert
Bergkamp, Jesse J.
Llansola Portolés, Manuel Jose
Sherman, Benjamin D.
Tomlin, John
Kodis, Gerdenis
Méndez Hernández, Dalvin D.
Bertolotti, Sonia Graciela
Chesta, Carlos Alberto
Mariño Ochoa, Ernesto
Moore, Ana L.
Moore, Thomas A.
Cosa, Gonzalo
Palacios, Rodrigo Emiliano
author_role author
author2 Godin, Robert
Bergkamp, Jesse J.
Llansola Portolés, Manuel Jose
Sherman, Benjamin D.
Tomlin, John
Kodis, Gerdenis
Méndez Hernández, Dalvin D.
Bertolotti, Sonia Graciela
Chesta, Carlos Alberto
Mariño Ochoa, Ernesto
Moore, Ana L.
Moore, Thomas A.
Cosa, Gonzalo
Palacios, Rodrigo Emiliano
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Photosensitization
Nanoparticles
Micelles
Perylenes
topic Photosensitization
Nanoparticles
Micelles
Perylenes
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We report on the photosensitization of titanium dioxide nanoparticles (TiO2 NPs) synthesized inside AOT (bis(2-ethylhexyl) sulfosuccinate sodium salt) reverse micelles following photoexcitation of perylene derivatives with dicarboxylate anchoring groups. The dyes, 1,7-dibromoperylene-3,4,9,10-tetracarboxy dianhydride (1), 1,7-dipyrrolidinylperylene-3,4,9,10-tetracarboxy dianhydride (2), and 1,7-bis(4-tert-butylphenyloxy)perylene-3,4,9,10-tetracarboxy dianhydride (3), have considerably different driving forces for photoinduced electron injection into the TiO2 conduction band, as estimated by electrochemical measurements and quantum mechanical calculations. Fluorescence anisotropy measurements indicate that dyes 1 and 2 are preferentially solubilized in the micellar structure, creating a relatively large local concentration that favors the attachment of the dye to the TiO2 surface. The binding process was followed by monitoring the hypsochromic shift of the dye absorption spectra over time for 1 and 2. Photoinduced electron transfer from the singlet excited state of 1 and 2 to the TiO2 conduction band (CB) is indicated by emission quenching of the TiO2-bound form of the dyes and confirmed by transient absorption measurements of the radical cation of the dyes and free carriers (injected electrons) in the TiO2 semiconductor. Steady state and transient spectroscopy indicate that dye 3 does not bind to the TiO2 NPs and does not photosensitize the semiconductor. This observation was rationalized as a consequence of the bulky t-butylphenyloxy groups which create a strong steric impediment for deep access of the dye within the micelle structure to reach the semiconductor oxide surface.
Fil: Hernández, Laura. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Godin, Robert. McGill University; Canadá
Fil: Bergkamp, Jesse J.. Arizona State University; Estados Unidos
Fil: Llansola Portolés, Manuel Jose. Arizona State University; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sherman, Benjamin D.. Arizona State University; Estados Unidos
Fil: Tomlin, John. Arizona State University; Estados Unidos
Fil: Kodis, Gerdenis. Arizona State University; Estados Unidos
Fil: Méndez Hernández, Dalvin D.. Arizona State University; Estados Unidos
Fil: Bertolotti, Sonia Graciela. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Chesta, Carlos Alberto. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Mariño Ochoa, Ernesto. Tecnológico de Monterrey; México
Fil: Moore, Ana L.. Arizona State University; Estados Unidos
Fil: Moore, Thomas A.. Arizona State University; Estados Unidos
Fil: Cosa, Gonzalo. McGill University; Canadá
Fil: Palacios, Rodrigo Emiliano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description We report on the photosensitization of titanium dioxide nanoparticles (TiO2 NPs) synthesized inside AOT (bis(2-ethylhexyl) sulfosuccinate sodium salt) reverse micelles following photoexcitation of perylene derivatives with dicarboxylate anchoring groups. The dyes, 1,7-dibromoperylene-3,4,9,10-tetracarboxy dianhydride (1), 1,7-dipyrrolidinylperylene-3,4,9,10-tetracarboxy dianhydride (2), and 1,7-bis(4-tert-butylphenyloxy)perylene-3,4,9,10-tetracarboxy dianhydride (3), have considerably different driving forces for photoinduced electron injection into the TiO2 conduction band, as estimated by electrochemical measurements and quantum mechanical calculations. Fluorescence anisotropy measurements indicate that dyes 1 and 2 are preferentially solubilized in the micellar structure, creating a relatively large local concentration that favors the attachment of the dye to the TiO2 surface. The binding process was followed by monitoring the hypsochromic shift of the dye absorption spectra over time for 1 and 2. Photoinduced electron transfer from the singlet excited state of 1 and 2 to the TiO2 conduction band (CB) is indicated by emission quenching of the TiO2-bound form of the dyes and confirmed by transient absorption measurements of the radical cation of the dyes and free carriers (injected electrons) in the TiO2 semiconductor. Steady state and transient spectroscopy indicate that dye 3 does not bind to the TiO2 NPs and does not photosensitize the semiconductor. This observation was rationalized as a consequence of the bulky t-butylphenyloxy groups which create a strong steric impediment for deep access of the dye within the micelle structure to reach the semiconductor oxide surface.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
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/11336/29066
Hernández, Laura; Godin, Robert; Bergkamp, Jesse J.; Llansola Portolés, Manuel Jose; Sherman, Benjamin D.; et al.; Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes; American Chemical Society; Journal of Physical Chemistry B; 117; 16; 11-2012; 4568-4581
1520-6106
CONICET Digital
CONICET
url http://hdl.handle.net/11336/29066
identifier_str_mv Hernández, Laura; Godin, Robert; Bergkamp, Jesse J.; Llansola Portolés, Manuel Jose; Sherman, Benjamin D.; et al.; Spectral Characteristics and Photosensitization of TiO2 Nanoparticles in Reverse Micelles by Perylenes; American Chemical Society; Journal of Physical Chemistry B; 117; 16; 11-2012; 4568-4581
1520-6106
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://pubs.acs.org/doi/10.1021/jp3086792
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp3086792
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
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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 13.13397

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