Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity

Autores
Zhu, Gangqiang; Liu, Yongbao; Hojamberdiev, Mirabbos; Han, Juanli; Rodríguez, Juan; Aldabe, Sara Alfonsina; Liu, Peng
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Novel porous β-Bi2O3/Bi2O2CO3 p-n heterostructures were synthesized by partially decomposing porous Bi2O2CO3 at 300-375 °C. The structures, morphologies, optical properties, and specific surface areas of the as-synthesized samples were characterized by means of thermogravimetry and differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, UV-Vis spectroscopy, and N2 gas adsorption. Two types of dyes, methyl orange (MO) and methylene blue (MB), were chosen as model organic pollutants to evaluate the photocatalytic activity of the as-synthesized samples. The porous β-Bi2O3/Bi2O2CO3 p-n heterostructures exhibited much higher photocatalytic activity than β-Bi2O3 and Bi2O2CO3 and MO and MB could be completely degraded within 24 and 50 min, respectively. In addition, phenol as a colorless organic pollutant was also chosen to further study the photocatalytic activity of Bi2O2CO3, β-Bi2O3 and β-Bi2O3/Bi2O2CO3. The β-Bi2O3/Bi2O2CO3 heterostructures also showed much higher photocatalytic activity for the photodegradation of phenol than β-Bi2O3 and Bi2O2CO3. The obtained results indicated that the formed p-n heterojunction in the porous β-Bi2O3/Bi2O2CO3 composite significantly contributed to the improvement of electron-hole separation and the enhancement of photocatalytic activity. The mechanisms for the enhanced photodegradation of selected organic pollutants over the β-Bi2O3/Bi2O2CO3 composite are discussed in this study.
Fil: Zhu, Gangqiang. Shaanxi Normal University; China
Fil: Liu, Yongbao. Shaanxi Normal University; China
Fil: Hojamberdiev, Mirabbos. Turin Polytechnic University in Tashkent; Uzbekistán
Fil: Han, Juanli. Shaanxi Normal University; China
Fil: Rodríguez, Juan. Universidad Nacional de Ingeniería; Perú
Fil: Aldabe, Sara Alfonsina. 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: Liu, Peng. Shaanxi Normal University; China
Materia
Photocatalysis
Β-Bi2o3 /Bi2o2co3
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:11336/58878
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/58878
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activityZhu, GangqiangLiu, YongbaoHojamberdiev, MirabbosHan, JuanliRodríguez, JuanAldabe, Sara AlfonsinaLiu, PengPhotocatalysisΒ-Bi2o3 /Bi2o2co3https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Novel porous β-Bi2O3/Bi2O2CO3 p-n heterostructures were synthesized by partially decomposing porous Bi2O2CO3 at 300-375 °C. The structures, morphologies, optical properties, and specific surface areas of the as-synthesized samples were characterized by means of thermogravimetry and differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, UV-Vis spectroscopy, and N2 gas adsorption. Two types of dyes, methyl orange (MO) and methylene blue (MB), were chosen as model organic pollutants to evaluate the photocatalytic activity of the as-synthesized samples. The porous β-Bi2O3/Bi2O2CO3 p-n heterostructures exhibited much higher photocatalytic activity than β-Bi2O3 and Bi2O2CO3 and MO and MB could be completely degraded within 24 and 50 min, respectively. In addition, phenol as a colorless organic pollutant was also chosen to further study the photocatalytic activity of Bi2O2CO3, β-Bi2O3 and β-Bi2O3/Bi2O2CO3. The β-Bi2O3/Bi2O2CO3 heterostructures also showed much higher photocatalytic activity for the photodegradation of phenol than β-Bi2O3 and Bi2O2CO3. The obtained results indicated that the formed p-n heterojunction in the porous β-Bi2O3/Bi2O2CO3 composite significantly contributed to the improvement of electron-hole separation and the enhancement of photocatalytic activity. The mechanisms for the enhanced photodegradation of selected organic pollutants over the β-Bi2O3/Bi2O2CO3 composite are discussed in this study.Fil: Zhu, Gangqiang. Shaanxi Normal University; ChinaFil: Liu, Yongbao. Shaanxi Normal University; ChinaFil: Hojamberdiev, Mirabbos. Turin Polytechnic University in Tashkent; UzbekistánFil: Han, Juanli. Shaanxi Normal University; ChinaFil: Rodríguez, Juan. Universidad Nacional de Ingeniería; PerúFil: Aldabe, Sara Alfonsina. 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: Liu, Peng. Shaanxi Normal University; ChinaRoyal Society of Chemistry2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/58878Zhu, Gangqiang; Liu, Yongbao; Hojamberdiev, Mirabbos; Han, Juanli; Rodríguez, Juan; et al.; Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity; Royal Society of Chemistry; New Journal of Chemistry; 39; 12; 9-2015; 9557-95681144-0546CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1039/C5NJ01462Jinfo:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/NJ/C5NJ01462Jinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:46:52Zoai:ri.conicet.gov.ar:11336/58878instacron: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 09:46:52.496CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
title Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
spellingShingle Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
Zhu, Gangqiang
Photocatalysis
Β-Bi2o3 /Bi2o2co3
title_short Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
title_full Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
title_fullStr Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
title_full_unstemmed Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
title_sort Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity
dc.creator.none.fl_str_mv Zhu, Gangqiang
Liu, Yongbao
Hojamberdiev, Mirabbos
Han, Juanli
Rodríguez, Juan
Aldabe, Sara Alfonsina
Liu, Peng
author Zhu, Gangqiang
author_facet Zhu, Gangqiang
Liu, Yongbao
Hojamberdiev, Mirabbos
Han, Juanli
Rodríguez, Juan
Aldabe, Sara Alfonsina
Liu, Peng
author_role author
author2 Liu, Yongbao
Hojamberdiev, Mirabbos
Han, Juanli
Rodríguez, Juan
Aldabe, Sara Alfonsina
Liu, Peng
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Photocatalysis
Β-Bi2o3 /Bi2o2co3
topic Photocatalysis
Β-Bi2o3 /Bi2o2co3
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Novel porous β-Bi2O3/Bi2O2CO3 p-n heterostructures were synthesized by partially decomposing porous Bi2O2CO3 at 300-375 °C. The structures, morphologies, optical properties, and specific surface areas of the as-synthesized samples were characterized by means of thermogravimetry and differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, UV-Vis spectroscopy, and N2 gas adsorption. Two types of dyes, methyl orange (MO) and methylene blue (MB), were chosen as model organic pollutants to evaluate the photocatalytic activity of the as-synthesized samples. The porous β-Bi2O3/Bi2O2CO3 p-n heterostructures exhibited much higher photocatalytic activity than β-Bi2O3 and Bi2O2CO3 and MO and MB could be completely degraded within 24 and 50 min, respectively. In addition, phenol as a colorless organic pollutant was also chosen to further study the photocatalytic activity of Bi2O2CO3, β-Bi2O3 and β-Bi2O3/Bi2O2CO3. The β-Bi2O3/Bi2O2CO3 heterostructures also showed much higher photocatalytic activity for the photodegradation of phenol than β-Bi2O3 and Bi2O2CO3. The obtained results indicated that the formed p-n heterojunction in the porous β-Bi2O3/Bi2O2CO3 composite significantly contributed to the improvement of electron-hole separation and the enhancement of photocatalytic activity. The mechanisms for the enhanced photodegradation of selected organic pollutants over the β-Bi2O3/Bi2O2CO3 composite are discussed in this study.
Fil: Zhu, Gangqiang. Shaanxi Normal University; China
Fil: Liu, Yongbao. Shaanxi Normal University; China
Fil: Hojamberdiev, Mirabbos. Turin Polytechnic University in Tashkent; Uzbekistán
Fil: Han, Juanli. Shaanxi Normal University; China
Fil: Rodríguez, Juan. Universidad Nacional de Ingeniería; Perú
Fil: Aldabe, Sara Alfonsina. 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: Liu, Peng. Shaanxi Normal University; China
description Novel porous β-Bi2O3/Bi2O2CO3 p-n heterostructures were synthesized by partially decomposing porous Bi2O2CO3 at 300-375 °C. The structures, morphologies, optical properties, and specific surface areas of the as-synthesized samples were characterized by means of thermogravimetry and differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, UV-Vis spectroscopy, and N2 gas adsorption. Two types of dyes, methyl orange (MO) and methylene blue (MB), were chosen as model organic pollutants to evaluate the photocatalytic activity of the as-synthesized samples. The porous β-Bi2O3/Bi2O2CO3 p-n heterostructures exhibited much higher photocatalytic activity than β-Bi2O3 and Bi2O2CO3 and MO and MB could be completely degraded within 24 and 50 min, respectively. In addition, phenol as a colorless organic pollutant was also chosen to further study the photocatalytic activity of Bi2O2CO3, β-Bi2O3 and β-Bi2O3/Bi2O2CO3. The β-Bi2O3/Bi2O2CO3 heterostructures also showed much higher photocatalytic activity for the photodegradation of phenol than β-Bi2O3 and Bi2O2CO3. The obtained results indicated that the formed p-n heterojunction in the porous β-Bi2O3/Bi2O2CO3 composite significantly contributed to the improvement of electron-hole separation and the enhancement of photocatalytic activity. The mechanisms for the enhanced photodegradation of selected organic pollutants over the β-Bi2O3/Bi2O2CO3 composite are discussed in this study.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
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/11336/58878
Zhu, Gangqiang; Liu, Yongbao; Hojamberdiev, Mirabbos; Han, Juanli; Rodríguez, Juan; et al.; Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity; Royal Society of Chemistry; New Journal of Chemistry; 39; 12; 9-2015; 9557-9568
1144-0546
CONICET Digital
CONICET
url http://hdl.handle.net/11336/58878
identifier_str_mv Zhu, Gangqiang; Liu, Yongbao; Hojamberdiev, Mirabbos; Han, Juanli; Rodríguez, Juan; et al.; Thermodecomposition synthesis of porous β-Bi2O3/Bi2O2CO3 heterostructured photocatalysts with improved visible light photocatalytic activity; Royal Society of Chemistry; New Journal of Chemistry; 39; 12; 9-2015; 9557-9568
1144-0546
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1039/C5NJ01462J
info:eu-repo/semantics/altIdentifier/url/http://pubs.rsc.org/en/Content/ArticleLanding/2015/NJ/C5NJ01462J
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 Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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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