Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189

Detalhes bibliográficos
Autor(a) principal: Santana, Veronice Slusarski
Data de Publicação: 2008
Outros Autores: Machado, Nádia Regina Camardo Fernandes
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta scientiarum. Technology (Online)
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1189
Resumo: The influence of the VIS or UV irradiation was evaluated on the phenol photocatalytic degradation in different experimental conditions. Tests with TiO2 as photocatalyst were carried out during 5h, in which parameters as irradiation, aeration, mass of TiO2 and initial concentration of phenol were changed. The textural analysis and XRD results showed that the TiO2 is a mesoporous material and it is constituted of a rutile and anatase phase mixture. The photodegradation tests showed that the sensitized photocatalysis was much slower than the direct photocatalysis, that it was much easier to degrade diluted solutions and that the oxygen presence had no influence on the process efficiency
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spelling Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189Avaliação da degradação de fenol via fotocatálise direta e sensibilizada - DOI: 10.4025/actascitechnol.v28i2.1189fotocatálise direta e sensibilizadacompostos fenólicosTiO23.06.00.00-6 Engenharia QuímicaThe influence of the VIS or UV irradiation was evaluated on the phenol photocatalytic degradation in different experimental conditions. Tests with TiO2 as photocatalyst were carried out during 5h, in which parameters as irradiation, aeration, mass of TiO2 and initial concentration of phenol were changed. The textural analysis and XRD results showed that the TiO2 is a mesoporous material and it is constituted of a rutile and anatase phase mixture. The photodegradation tests showed that the sensitized photocatalysis was much slower than the direct photocatalysis, that it was much easier to degrade diluted solutions and that the oxygen presence had no influence on the process efficiencyA influência do tipo de irradiação, VIS ou UV, foi avaliada na degradação fotocatalítica do fenol em diferentes condições operacionais. Testes com TiO2 como fotocatalisador foram realizados durante 5h, nos quais parâmetros como irradiação, aeração, massa de TiO2 e concentração inicial de fenol foram variados. Os resultados de análise textural e DRX mostraram que o TiO2 é um material mesoporoso e constituído de uma mistura das fases rutile e anatase. Os testes de fotodegradação mostraram que a fotocatálise sensibilizada foi muito mais lenta que a fotocatálise direta, que foi muito mais fácil degradar soluções diluídas e que a presença de oxigênio não influenciou a eficiência do processoUniversidade Estadual De Maringá2008-03-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/118910.4025/actascitechnol.v28i2.1189Acta Scientiarum. Technology; Vol 28 No 2 (2006); 155-163Acta Scientiarum. Technology; v. 28 n. 2 (2006); 155-1631806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1189/701Santana, Veronice SlusarskiMachado, Nádia Regina Camardo Fernandesinfo:eu-repo/semantics/openAccess2024-05-17T13:02:32Zoai:periodicos.uem.br/ojs:article/1189Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:32Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
Avaliação da degradação de fenol via fotocatálise direta e sensibilizada - DOI: 10.4025/actascitechnol.v28i2.1189
title Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
spellingShingle Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
Santana, Veronice Slusarski
fotocatálise direta e sensibilizada
compostos fenólicos
TiO2
3.06.00.00-6 Engenharia Química
title_short Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
title_full Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
title_fullStr Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
title_full_unstemmed Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
title_sort Phenol degradation evaluation by direct and sensitized photocatalysis - DOI: 10.4025/actascitechnol.v28i2.1189
author Santana, Veronice Slusarski
author_facet Santana, Veronice Slusarski
Machado, Nádia Regina Camardo Fernandes
author_role author
author2 Machado, Nádia Regina Camardo Fernandes
author2_role author
dc.contributor.author.fl_str_mv Santana, Veronice Slusarski
Machado, Nádia Regina Camardo Fernandes
dc.subject.por.fl_str_mv fotocatálise direta e sensibilizada
compostos fenólicos
TiO2
3.06.00.00-6 Engenharia Química
topic fotocatálise direta e sensibilizada
compostos fenólicos
TiO2
3.06.00.00-6 Engenharia Química
description The influence of the VIS or UV irradiation was evaluated on the phenol photocatalytic degradation in different experimental conditions. Tests with TiO2 as photocatalyst were carried out during 5h, in which parameters as irradiation, aeration, mass of TiO2 and initial concentration of phenol were changed. The textural analysis and XRD results showed that the TiO2 is a mesoporous material and it is constituted of a rutile and anatase phase mixture. The photodegradation tests showed that the sensitized photocatalysis was much slower than the direct photocatalysis, that it was much easier to degrade diluted solutions and that the oxygen presence had no influence on the process efficiency
publishDate 2008
dc.date.none.fl_str_mv 2008-03-20
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1189
10.4025/actascitechnol.v28i2.1189
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1189
identifier_str_mv 10.4025/actascitechnol.v28i2.1189
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1189/701
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.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Technology; Vol 28 No 2 (2006); 155-163
Acta Scientiarum. Technology; v. 28 n. 2 (2006); 155-163
1806-2563
1807-8664
reponame:Acta scientiarum. Technology (Online)
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta scientiarum. Technology (Online)
collection Acta scientiarum. Technology (Online)
repository.name.fl_str_mv Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actatech@uem.br
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