Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R

Detalhes bibliográficos
Autor(a) principal: Oliveira, Danielle F. M.
Data de Publicação: 2011
Outros Autores: Batista, Paulo Sérgio, Muller Junior, Paulo S., Velani, Valdemir, França, Marcela D., Souza, Danilo R. de, Machado, Antonio E. H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/5432
Resumo: texto completo: acesso restrito. p. 563-572.
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spelling Oliveira, Danielle F. M.Batista, Paulo SérgioMuller Junior, Paulo S.Velani, ValdemirFrança, Marcela D.Souza, Danilo R. deMachado, Antonio E. H.Oliveira, Danielle F. M.Batista, Paulo SérgioMuller Junior, Paulo S.Velani, ValdemirFrança, Marcela D.Souza, Danilo R. deMachado, Antonio E. H.2012-02-24T12:38:26Z20111873-3743http://www.repositorio.ufba.br/ri/handle/ri/5432v. 92texto completo: acesso restrito. p. 563-572.The performance of different titanium dioxide (TiO2) catalysts and a composite based on the association between TiO2 P25 and Zinc Phthalocyanine (TiO2/ZnPc 1.6%) was evaluated in the photocatalytic degradation of the dye Ponceau 4R (C.I. 16255). The results show that the composite presents a better performance than the other, reaching about 50% mineralization of the dye in 120 min of reaction, around three times higher than that observed under the action of pure TiO2 P25, although this catalyst presents a quantum yield of hydroxyl radical generation about three times higher than that estimated for the composite. This result seems to be a consequence of the synergism between the electronically excited ZnPc aggregates and the TiO2 surface. A parallel study, based on methods from quantum mechanics also suggested the most feasible routes for the photodegradation of the dye in the absence of the catalyst.Submitted by Ana Valéria de Jesus Moura (anavaleria_131@hotmail.com) on 2012-02-24T12:38:26Z No. of bitstreams: 1 Evaluating the effectiveness of photocatalysts based on titanium dioxide.pdf: 286285 bytes, checksum: 38f33327fb33057c8fe092b034c1790e (MD5)Made available in DSpace on 2012-02-24T12:38:26Z (GMT). No. of bitstreams: 1 Evaluating the effectiveness of photocatalysts based on titanium dioxide.pdf: 286285 bytes, checksum: 38f33327fb33057c8fe092b034c1790e (MD5) Previous issue date: 2011TiO2/zinc phthalocyanine compositeAOPTiO2 photocatalystsPhotodegradationPonceau 4RDFTEvaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4RDyes and Pigmentsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01engreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAinfo:eu-repo/semantics/openAccessORIGINALEvaluating the effectiveness of photocatalysts based on titanium dioxide.pdfEvaluating the effectiveness of photocatalysts based on titanium dioxide.pdfapplication/pdf286285https://repositorio.ufba.br/bitstream/ri/5432/1/Evaluating%20the%20effectiveness%20of%20photocatalysts%20based%20on%20titanium%20dioxide.pdf38f33327fb33057c8fe092b034c1790eMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5432/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXTEvaluating the effectiveness of photocatalysts based on titanium dioxide.pdf.txtEvaluating the effectiveness of photocatalysts based on titanium dioxide.pdf.txtExtracted texttext/plain56932https://repositorio.ufba.br/bitstream/ri/5432/3/Evaluating%20the%20effectiveness%20of%20photocatalysts%20based%20on%20titanium%20dioxide.pdf.txtffd756b4d500e413a3cb52f9b7a81a11MD53ri/54322022-07-05 14:03:13.475oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:13Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
dc.title.alternative.pt_BR.fl_str_mv Dyes and Pigments
title Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
spellingShingle Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
Oliveira, Danielle F. M.
TiO2/zinc phthalocyanine composite
AOP
TiO2 photocatalysts
Photodegradation
Ponceau 4R
DFT
title_short Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
title_full Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
title_fullStr Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
title_full_unstemmed Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
title_sort Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
author Oliveira, Danielle F. M.
author_facet Oliveira, Danielle F. M.
Batista, Paulo Sérgio
Muller Junior, Paulo S.
Velani, Valdemir
França, Marcela D.
Souza, Danilo R. de
Machado, Antonio E. H.
author_role author
author2 Batista, Paulo Sérgio
Muller Junior, Paulo S.
Velani, Valdemir
França, Marcela D.
Souza, Danilo R. de
Machado, Antonio E. H.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Oliveira, Danielle F. M.
Batista, Paulo Sérgio
Muller Junior, Paulo S.
Velani, Valdemir
França, Marcela D.
Souza, Danilo R. de
Machado, Antonio E. H.
Oliveira, Danielle F. M.
Batista, Paulo Sérgio
Muller Junior, Paulo S.
Velani, Valdemir
França, Marcela D.
Souza, Danilo R. de
Machado, Antonio E. H.
dc.subject.por.fl_str_mv TiO2/zinc phthalocyanine composite
AOP
TiO2 photocatalysts
Photodegradation
Ponceau 4R
DFT
topic TiO2/zinc phthalocyanine composite
AOP
TiO2 photocatalysts
Photodegradation
Ponceau 4R
DFT
description texto completo: acesso restrito. p. 563-572.
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2012-02-24T12:38:26Z
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 http://www.repositorio.ufba.br/ri/handle/ri/5432
dc.identifier.issn.none.fl_str_mv 1873-3743
dc.identifier.number.pt_BR.fl_str_mv v. 92
identifier_str_mv 1873-3743
v. 92
url http://www.repositorio.ufba.br/ri/handle/ri/5432
dc.language.iso.fl_str_mv eng
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dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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