Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491

Detalhes bibliográficos
Autor(a) principal: Santana, Veronice Slusarski
Data de Publicação: 2008
Outros Autores: Alberton, André Luís, 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/1491
Resumo: Degradation tests were carried out to determine the luminous intensity influence on textile industry effluent photodegradation. TiO2, Nb2O5, Nb2O5-TiO2 and Nb2O5/TiO2 were used as photocatalysts. FTIR (Fourrier Transform Infrared) and TPR (Temperature Program Reduction) results showed interaction between different forms of the oxides in the Nb2O5-TiO2 and Nb2O5/TiO2 catalysts and the forming of a new phase in Nb2O5-TiO2. The reaction rate was significantly influenced by the luminous intensity. Luminous intensity decrease caused decolourisation increase and COD reduction decrease, suggesting that the concentration of the hydroxyl groups, which are responsible for the chromophores groups degradation, is proportional to the luminous intensity
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spelling Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491Influência da intensidade luminosa na fotodegradação de efluente têxtil - DOI: 10.4025/actascitechnol.v27i1.1491fotodegradaçãointensidade luminosaTiO2Nb2O5efluente têxtil3.06.00.00-6 Engenharia QuímicaDegradation tests were carried out to determine the luminous intensity influence on textile industry effluent photodegradation. TiO2, Nb2O5, Nb2O5-TiO2 and Nb2O5/TiO2 were used as photocatalysts. FTIR (Fourrier Transform Infrared) and TPR (Temperature Program Reduction) results showed interaction between different forms of the oxides in the Nb2O5-TiO2 and Nb2O5/TiO2 catalysts and the forming of a new phase in Nb2O5-TiO2. The reaction rate was significantly influenced by the luminous intensity. Luminous intensity decrease caused decolourisation increase and COD reduction decrease, suggesting that the concentration of the hydroxyl groups, which are responsible for the chromophores groups degradation, is proportional to the luminous intensityTestes de degradação foram realizados com o objetivo de determinar a influência da intensidade luminosa na fotodegradação de um efluente industrial têxtil. Como fotocatalisadores foram utilizados TiO2, Nb2O5, Nb2O5-TiO2 e Nb2O5/TiO2. Os resultados de FTIR (Infravermelho com Transformada de Fourrier)e RTP (Redução à Temperatura programada) mostraram a existência de interação entre os óxidos de forma diferenciada nos catalisadores Nb2O5-TiO2 e Nb2O5/TiO2 e a formação de uma nova fase no Nb2O5-TiO2. A taxa de reação foi significativamente influenciada pela intensidade luminosa. A redução da intensidade luminosa ocasionou o aumento da descoloração e a diminuição da redução de DQO, sugerindo que a concentração dos grupos hidroxila, que são responsáveis pela degradação dos grupos cromóforos, é proporcional à intensidade luminosaUniversidade Estadual De Maringá2008-03-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/149110.4025/actascitechnol.v27i1.1491Acta Scientiarum. Technology; Vol 27 No 1 (2005); 1-6Acta Scientiarum. Technology; v. 27 n. 1 (2005); 1-61806-25631807-8664reponame:Acta scientiarum. Technology (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1491/850Santana, Veronice SlusarskiAlberton, André LuísMachado, Nádia Regina Camardo Fernandesinfo:eu-repo/semantics/openAccess2024-05-17T13:02:37Zoai:periodicos.uem.br/ojs:article/1491Revistahttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/indexPUBhttps://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/oai||actatech@uem.br1807-86641806-2563opendoar:2024-05-17T13:02:37Acta scientiarum. Technology (Online) - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
Influência da intensidade luminosa na fotodegradação de efluente têxtil - DOI: 10.4025/actascitechnol.v27i1.1491
title Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
spellingShingle Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
Santana, Veronice Slusarski
fotodegradação
intensidade luminosa
TiO2
Nb2O5
efluente têxtil
3.06.00.00-6 Engenharia Química
title_short Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
title_full Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
title_fullStr Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
title_full_unstemmed Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
title_sort Influence of luminous intensity on textile effluent photodegradation - DOI: 10.4025/actascitechnol.v27i1.1491
author Santana, Veronice Slusarski
author_facet Santana, Veronice Slusarski
Alberton, André Luís
Machado, Nádia Regina Camardo Fernandes
author_role author
author2 Alberton, André Luís
Machado, Nádia Regina Camardo Fernandes
author2_role author
author
dc.contributor.author.fl_str_mv Santana, Veronice Slusarski
Alberton, André Luís
Machado, Nádia Regina Camardo Fernandes
dc.subject.por.fl_str_mv fotodegradação
intensidade luminosa
TiO2
Nb2O5
efluente têxtil
3.06.00.00-6 Engenharia Química
topic fotodegradação
intensidade luminosa
TiO2
Nb2O5
efluente têxtil
3.06.00.00-6 Engenharia Química
description Degradation tests were carried out to determine the luminous intensity influence on textile industry effluent photodegradation. TiO2, Nb2O5, Nb2O5-TiO2 and Nb2O5/TiO2 were used as photocatalysts. FTIR (Fourrier Transform Infrared) and TPR (Temperature Program Reduction) results showed interaction between different forms of the oxides in the Nb2O5-TiO2 and Nb2O5/TiO2 catalysts and the forming of a new phase in Nb2O5-TiO2. The reaction rate was significantly influenced by the luminous intensity. Luminous intensity decrease caused decolourisation increase and COD reduction decrease, suggesting that the concentration of the hydroxyl groups, which are responsible for the chromophores groups degradation, is proportional to the luminous intensity
publishDate 2008
dc.date.none.fl_str_mv 2008-03-27
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/1491
10.4025/actascitechnol.v27i1.1491
url http://www.periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/1491
identifier_str_mv 10.4025/actascitechnol.v27i1.1491
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/1491/850
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 27 No 1 (2005); 1-6
Acta Scientiarum. Technology; v. 27 n. 1 (2005); 1-6
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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