Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications

Autores
Rodríguez, Nicolás Artemio; Savateev, Aleksandr; Grela, Maria Alejandra; Dontsova, Dariya
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Photocatalytically active composites comprising potassium poly(heptazine imide) (PHIK) and a Ti-based metal-organic framework (MOF, MIL-125-NH2) are prepared in situ by simply dispersing both materials in water. The driving forces of composite formation are the electrostatic interactions between the solids and the diffusion of potassium ions from PHIK to MIL-125-NH2. This mechanism implies that other composites of poly(heptazine imide) salts and different MOFs bearing positive surface charge can potentially be obtained in a similar fashion. The suggested strategy thus opens a new avenue for the facile synthesis of such materials. The composites are shown to have a superior photocatalytic activity in Rhodamine B degradation under blue light irradiation. The reaction rate is doubled compared to that of pure MOF compound and is 7 times higher than the activity of the pristine PHIK. The results of the electron paramagnetic resonance (EPR) investigations and the analysis of the electronic structures of the solids suggest the electron transfer from MIL-125-NH2 to PHIK in the composite. The possible pathways for the dye degradation and the rationalization of the increased activity of the composites are elaborated.
Fil: Rodríguez, Nicolás Artemio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina
Fil: Savateev, Aleksandr. Department of Colloid Chemistry. Max Planck Institute of Colloids and Interfaces; Alemania
Fil: Grela, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química; Argentina
Fil: Dontsova, Dariya. Department of Colloid Chemistry. Max Planck Institute of Colloids and Interfaces; Alemania
Materia
CARBON NITRIDE
COMPOSITE
METAL-ORGANIC FRAMEWORK
MIL-125-NH2
PHOTOCATALYSIS
PHOTOCHROMIC EFFECT
POLY(HEPTAZINE IMIDE)
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:11336/77013
Acceder
id CONICETDig_50edc13b63b9bf5e1c21b1b64c122e9b
oai_identifier_str oai:ri.conicet.gov.ar:11336/77013
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applicationsRodríguez, Nicolás ArtemioSavateev, AleksandrGrela, Maria AlejandraDontsova, DariyaCARBON NITRIDECOMPOSITEMETAL-ORGANIC FRAMEWORKMIL-125-NH2PHOTOCATALYSISPHOTOCHROMIC EFFECTPOLY(HEPTAZINE IMIDE)https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Photocatalytically active composites comprising potassium poly(heptazine imide) (PHIK) and a Ti-based metal-organic framework (MOF, MIL-125-NH2) are prepared in situ by simply dispersing both materials in water. The driving forces of composite formation are the electrostatic interactions between the solids and the diffusion of potassium ions from PHIK to MIL-125-NH2. This mechanism implies that other composites of poly(heptazine imide) salts and different MOFs bearing positive surface charge can potentially be obtained in a similar fashion. The suggested strategy thus opens a new avenue for the facile synthesis of such materials. The composites are shown to have a superior photocatalytic activity in Rhodamine B degradation under blue light irradiation. The reaction rate is doubled compared to that of pure MOF compound and is 7 times higher than the activity of the pristine PHIK. The results of the electron paramagnetic resonance (EPR) investigations and the analysis of the electronic structures of the solids suggest the electron transfer from MIL-125-NH2 to PHIK in the composite. The possible pathways for the dye degradation and the rationalization of the increased activity of the composites are elaborated.Fil: Rodríguez, Nicolás Artemio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; ArgentinaFil: Savateev, Aleksandr. Department of Colloid Chemistry. Max Planck Institute of Colloids and Interfaces; AlemaniaFil: Grela, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química; ArgentinaFil: Dontsova, Dariya. Department of Colloid Chemistry. Max Planck Institute of Colloids and Interfaces; AlemaniaAmerican Chemical Society2017-07info: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/11336/77013Rodríguez, Nicolás Artemio; Savateev, Aleksandr; Grela, Maria Alejandra; Dontsova, Dariya; Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications; American Chemical Society; ACS Applied Materials & Interfaces; 9; 27; 7-2017; 22941-229491944-8244CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/acsami.7b04745info:eu-repo/semantics/altIdentifier/doi/10.1021/acsami.7b04745info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:42:59Zoai:ri.conicet.gov.ar:11336/77013instacron: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 10:42:59.987CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
title Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
spellingShingle Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
Rodríguez, Nicolás Artemio
CARBON NITRIDE
COMPOSITE
METAL-ORGANIC FRAMEWORK
MIL-125-NH2
PHOTOCATALYSIS
PHOTOCHROMIC EFFECT
POLY(HEPTAZINE IMIDE)
title_short Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
title_full Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
title_fullStr Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
title_full_unstemmed Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
title_sort Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications
dc.creator.none.fl_str_mv Rodríguez, Nicolás Artemio
Savateev, Aleksandr
Grela, Maria Alejandra
Dontsova, Dariya
author Rodríguez, Nicolás Artemio
author_facet Rodríguez, Nicolás Artemio
Savateev, Aleksandr
Grela, Maria Alejandra
Dontsova, Dariya
author_role author
author2 Savateev, Aleksandr
Grela, Maria Alejandra
Dontsova, Dariya
author2_role author
author
author
dc.subject.none.fl_str_mv CARBON NITRIDE
COMPOSITE
METAL-ORGANIC FRAMEWORK
MIL-125-NH2
PHOTOCATALYSIS
PHOTOCHROMIC EFFECT
POLY(HEPTAZINE IMIDE)
topic CARBON NITRIDE
COMPOSITE
METAL-ORGANIC FRAMEWORK
MIL-125-NH2
PHOTOCATALYSIS
PHOTOCHROMIC EFFECT
POLY(HEPTAZINE IMIDE)
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Photocatalytically active composites comprising potassium poly(heptazine imide) (PHIK) and a Ti-based metal-organic framework (MOF, MIL-125-NH2) are prepared in situ by simply dispersing both materials in water. The driving forces of composite formation are the electrostatic interactions between the solids and the diffusion of potassium ions from PHIK to MIL-125-NH2. This mechanism implies that other composites of poly(heptazine imide) salts and different MOFs bearing positive surface charge can potentially be obtained in a similar fashion. The suggested strategy thus opens a new avenue for the facile synthesis of such materials. The composites are shown to have a superior photocatalytic activity in Rhodamine B degradation under blue light irradiation. The reaction rate is doubled compared to that of pure MOF compound and is 7 times higher than the activity of the pristine PHIK. The results of the electron paramagnetic resonance (EPR) investigations and the analysis of the electronic structures of the solids suggest the electron transfer from MIL-125-NH2 to PHIK in the composite. The possible pathways for the dye degradation and the rationalization of the increased activity of the composites are elaborated.
Fil: Rodríguez, Nicolás Artemio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Química; Argentina
Fil: Savateev, Aleksandr. Department of Colloid Chemistry. Max Planck Institute of Colloids and Interfaces; Alemania
Fil: Grela, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Físicas de Mar del Plata. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Físicas de Mar del Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Química; Argentina
Fil: Dontsova, Dariya. Department of Colloid Chemistry. Max Planck Institute of Colloids and Interfaces; Alemania
description Photocatalytically active composites comprising potassium poly(heptazine imide) (PHIK) and a Ti-based metal-organic framework (MOF, MIL-125-NH2) are prepared in situ by simply dispersing both materials in water. The driving forces of composite formation are the electrostatic interactions between the solids and the diffusion of potassium ions from PHIK to MIL-125-NH2. This mechanism implies that other composites of poly(heptazine imide) salts and different MOFs bearing positive surface charge can potentially be obtained in a similar fashion. The suggested strategy thus opens a new avenue for the facile synthesis of such materials. The composites are shown to have a superior photocatalytic activity in Rhodamine B degradation under blue light irradiation. The reaction rate is doubled compared to that of pure MOF compound and is 7 times higher than the activity of the pristine PHIK. The results of the electron paramagnetic resonance (EPR) investigations and the analysis of the electronic structures of the solids suggest the electron transfer from MIL-125-NH2 to PHIK in the composite. The possible pathways for the dye degradation and the rationalization of the increased activity of the composites are elaborated.
publishDate 2017
dc.date.none.fl_str_mv 2017-07
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/11336/77013
Rodríguez, Nicolás Artemio; Savateev, Aleksandr; Grela, Maria Alejandra; Dontsova, Dariya; Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications; American Chemical Society; ACS Applied Materials & Interfaces; 9; 27; 7-2017; 22941-22949
1944-8244
CONICET Digital
CONICET
url http://hdl.handle.net/11336/77013
identifier_str_mv Rodríguez, Nicolás Artemio; Savateev, Aleksandr; Grela, Maria Alejandra; Dontsova, Dariya; Facile synthesis of potassium poly(heptazine imide) (PHIK)/Ti-based metal–organic framework (MIL-125-NH 2 ) composites for photocatalytic applications; American Chemical Society; ACS Applied Materials & Interfaces; 9; 27; 7-2017; 22941-22949
1944-8244
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/abs/10.1021/acsami.7b04745
info:eu-repo/semantics/altIdentifier/doi/10.1021/acsami.7b04745
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
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
_version_ 1844614463861293056
score 13.070432

Publicaciones similares