Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035 |
Resumo: | The main goal of this paper was to study the degradation of synthetic dyes using photoelectrocatalytic properties of particulate films of TiO2 supported on plates of titanium and stimulated by UV-Vis radiation. The dyes decolorizations were measured using spectrophotometric methods to verify which the conditions on Ti/TiO2 electrode was the best for the photoelectrodegradation of them. The results showed that decolorization rates were higher than 90% during a period of 270 min. FT-IR spectroscopy showed that intermediate substances were formed after the decolorization and N=N group/aromatic structures were preserved independently of the specific structure of the dyes. |
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Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticosheterogeneous photocatalysistitanium dioxidesynthetic dyesThe main goal of this paper was to study the degradation of synthetic dyes using photoelectrocatalytic properties of particulate films of TiO2 supported on plates of titanium and stimulated by UV-Vis radiation. The dyes decolorizations were measured using spectrophotometric methods to verify which the conditions on Ti/TiO2 electrode was the best for the photoelectrodegradation of them. The results showed that decolorization rates were higher than 90% during a period of 270 min. FT-IR spectroscopy showed that intermediate substances were formed after the decolorization and N=N group/aromatic structures were preserved independently of the specific structure of the dyes.Sociedade Brasileira de Química2009-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035Química Nova v.32 n.9 2009reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422009000900035info:eu-repo/semantics/openAccessCervantes,Thiago N. M.Zaia,Dimas A. M.Santana,Henrique depor2010-01-06T00:00:00Zoai:scielo:S0100-40422009000900035Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2010-01-06T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
title |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
spellingShingle |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos Cervantes,Thiago N. M. heterogeneous photocatalysis titanium dioxide synthetic dyes |
title_short |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
title_full |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
title_fullStr |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
title_full_unstemmed |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
title_sort |
Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos |
author |
Cervantes,Thiago N. M. |
author_facet |
Cervantes,Thiago N. M. Zaia,Dimas A. M. Santana,Henrique de |
author_role |
author |
author2 |
Zaia,Dimas A. M. Santana,Henrique de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Cervantes,Thiago N. M. Zaia,Dimas A. M. Santana,Henrique de |
dc.subject.por.fl_str_mv |
heterogeneous photocatalysis titanium dioxide synthetic dyes |
topic |
heterogeneous photocatalysis titanium dioxide synthetic dyes |
description |
The main goal of this paper was to study the degradation of synthetic dyes using photoelectrocatalytic properties of particulate films of TiO2 supported on plates of titanium and stimulated by UV-Vis radiation. The dyes decolorizations were measured using spectrophotometric methods to verify which the conditions on Ti/TiO2 electrode was the best for the photoelectrodegradation of them. The results showed that decolorization rates were higher than 90% during a period of 270 min. FT-IR spectroscopy showed that intermediate substances were formed after the decolorization and N=N group/aromatic structures were preserved independently of the specific structure of the dyes. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422009000900035 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.32 n.9 2009 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318109936320512 |