Evaluating the effectiveness of photocatalysts based on titanium dioxide in the degradation of the dye Ponceau 4R
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , |
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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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 |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFBA instname:Universidade Federal da Bahia (UFBA) instacron:UFBA |
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Universidade Federal da Bahia (UFBA) |
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UFBA |
reponame_str |
Repositório Institucional da UFBA |
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Repositório Institucional da UFBA |
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