Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content

Detalhes bibliográficos
Autor(a) principal: Landers, Richard, 1946-
Data de Publicação: 2020
Tipo de documento: Artigo
Título da fonte: Repositório da Produção Científica e Intelectual da Unicamp
Texto Completo: https://hdl.handle.net/20.500.12733/1666098
Resumo: Agradecimentos: The authors acknowledge the financial support provided by the Sao Paulo Research Foundation (Grants No 2018/10492-1, No 2018/12035-7, No 2017/10118-0, No 2013/02762-5 and No 2018/16360-0) and by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Grants No 155550/2018-7 and No 405543/2016-6). The authors are also grateful to TANAC S.A., which supplied the black wattle tannin
id CAMP_6e2b6ea27ace59bf4e20b7de5ed4e4d9
oai_identifier_str oai:https://www.repositorio.unicamp.br/:1218460
network_acronym_str CAMP
network_name_str Repositório da Produção Científica e Intelectual da Unicamp
repository_id_str
spelling Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth contentÓxido de zincoTrióxido de bismutoFotocatáliseHeterojunçãoZinc oxideBismuth trioxidePhotocatalysisHeterojunctionsCarbon xerogelArtigo originalAgradecimentos: The authors acknowledge the financial support provided by the Sao Paulo Research Foundation (Grants No 2018/10492-1, No 2018/12035-7, No 2017/10118-0, No 2013/02762-5 and No 2018/16360-0) and by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Grants No 155550/2018-7 and No 405543/2016-6). The authors are also grateful to TANAC S.A., which supplied the black wattle tanninAbstract: This work aimed to study the development and properties of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible light photocatalysis applications. The materials were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, dispersive energy spectroscopy, infrared spectroscopy, nitrogen adsorption isotherms, Raman spectroscopy, diffuse reflectance spectroscopy and X-ray photoelectron spectroscopy. The photocatalytic activity of the developed composites was evaluated through the photo degradation of the 4-chlorophenol molecule and by chronoamperometry tests. The results obtained show that the calcination temperature poses a major influence in the final structure of the materials developed. The calcination temperature of 600 degrees C resulted in the formation of the beta-Bi2O3 and Bi-0 phases, consequently enhancing the photocatalytic activity of the composites due to the increased charge mobility provided by the heterojunctions between zinc oxide, carbon xerogel, bismuth oxide and metallic bismuth. The composite with intermediate bismuth composition (XC/ZnO-Bi2O3 5%) displayed the best photocatalytic response among the materials tested, which was confirmed by its increased photocurrent generation capability. The photocatalytic mechanism is highly dependent in the generation of hydroxyl radicals and the composite presents good reusability propertiesFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPCONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFechadoUNIVERSIDADE ESTADUAL DE CAMPINASLanders, Richard, 1946-2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.12733/1666098LANDERS, Richard. Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications: effect of calcination temperature and bismuth content. Ceramics international. Oxford : Pergamon Press, 2020. Vol. 46, n. 15 (Oct., 2020), p. 23895-23909. Disponível em: https://hdl.handle.net/20.500.12733/1666098. Acesso em: 24 mai. 2023.Inglêshttps://repositorio.unicamp.br/acervo/detalhe/1218460reponame:Repositório da Produção Científica e Intelectual da Unicampinstname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPinfo:eu-repo/semantics/openAccess2022-05-23T12:15:49Zoai:https://www.repositorio.unicamp.br/:1218460Repositório InstitucionalPUBhttp://repositorio.unicamp.br/oai/requestreposip@unicamp.bropendoar:2022-05-23T12:15:49Repositório da Produção Científica e Intelectual da Unicamp - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
title Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
spellingShingle Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
Landers, Richard, 1946-
Óxido de zinco
Trióxido de bismuto
Fotocatálise
Heterojunção
Zinc oxide
Bismuth trioxide
Photocatalysis
Heterojunctions
Carbon xerogel
Artigo original
title_short Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
title_full Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
title_fullStr Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
title_full_unstemmed Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
title_sort Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications : effect of calcination temperature and bismuth content
author Landers, Richard, 1946-
author_facet Landers, Richard, 1946-
author_role author
dc.contributor.none.fl_str_mv UNIVERSIDADE ESTADUAL DE CAMPINAS
dc.contributor.author.fl_str_mv Landers, Richard, 1946-
dc.subject.por.fl_str_mv Óxido de zinco
Trióxido de bismuto
Fotocatálise
Heterojunção
Zinc oxide
Bismuth trioxide
Photocatalysis
Heterojunctions
Carbon xerogel
Artigo original
topic Óxido de zinco
Trióxido de bismuto
Fotocatálise
Heterojunção
Zinc oxide
Bismuth trioxide
Photocatalysis
Heterojunctions
Carbon xerogel
Artigo original
description Agradecimentos: The authors acknowledge the financial support provided by the Sao Paulo Research Foundation (Grants No 2018/10492-1, No 2018/12035-7, No 2017/10118-0, No 2013/02762-5 and No 2018/16360-0) and by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (Grants No 155550/2018-7 and No 405543/2016-6). The authors are also grateful to TANAC S.A., which supplied the black wattle tannin
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/20.500.12733/1666098
LANDERS, Richard. Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications: effect of calcination temperature and bismuth content. Ceramics international. Oxford : Pergamon Press, 2020. Vol. 46, n. 15 (Oct., 2020), p. 23895-23909. Disponível em: https://hdl.handle.net/20.500.12733/1666098. Acesso em: 24 mai. 2023.
url https://hdl.handle.net/20.500.12733/1666098
identifier_str_mv LANDERS, Richard. Facile preparation of Bi-doped ZnO/beta-Bi2O3/Carbon xerogel composites towards visible-light photocatalytic applications: effect of calcination temperature and bismuth content. Ceramics international. Oxford : Pergamon Press, 2020. Vol. 46, n. 15 (Oct., 2020), p. 23895-23909. Disponível em: https://hdl.handle.net/20.500.12733/1666098. Acesso em: 24 mai. 2023.
dc.language.iso.fl_str_mv Inglês
language_invalid_str_mv Inglês
dc.relation.none.fl_str_mv https://repositorio.unicamp.br/acervo/detalhe/1218460
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório da Produção Científica e Intelectual da Unicamp
instname:Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
instname_str Universidade Estadual de Campinas (UNICAMP)
instacron_str UNICAMP
institution UNICAMP
reponame_str Repositório da Produção Científica e Intelectual da Unicamp
collection Repositório da Produção Científica e Intelectual da Unicamp
repository.name.fl_str_mv Repositório da Produção Científica e Intelectual da Unicamp - Universidade Estadual de Campinas (UNICAMP)
repository.mail.fl_str_mv reposip@unicamp.br
_version_ 1766887310744354816

Registros relacionados