Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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=S0100-40422012000100006 |
Resumo: | The Zn-TiO2nanocomposite films were prepared by electrodeposition, using an acidic zinc sulphate solution with TiO2 nanoparticles in suspension. The as-deposited samples have been heated in air at 450 ºC for 6 h. The XRD and SEM analyses pointed out to the metal matrix conversion from Zn to ZnO and a rich morphology of needles-shaped grains. These materials were used on the photoelectrochemical degradation of AO7, which was efficiently degraded, with 40% of color removal, after 2 h period at 1.0 V, under white light irradiation. The apparent first order rate constant of the photoelectrodegradation reaction was 4.12 x 10-3 min-1. |
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Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2ZnO-TiO2 nanocomposite filmsAO7 dyephotoelectrodegradationThe Zn-TiO2nanocomposite films were prepared by electrodeposition, using an acidic zinc sulphate solution with TiO2 nanoparticles in suspension. The as-deposited samples have been heated in air at 450 ºC for 6 h. The XRD and SEM analyses pointed out to the metal matrix conversion from Zn to ZnO and a rich morphology of needles-shaped grains. These materials were used on the photoelectrochemical degradation of AO7, which was efficiently degraded, with 40% of color removal, after 2 h period at 1.0 V, under white light irradiation. The apparent first order rate constant of the photoelectrodegradation reaction was 4.12 x 10-3 min-1.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000100006Química Nova v.35 n.1 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000100006info:eu-repo/semantics/openAccessFrade,TâniaGomes,AnabelaPereira,Maria Isabel da SilvaLopes,AnaCiríaco,Lurdespor2012-02-27T00:00:00Zoai:scielo:S0100-40422012000100006Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-02-27T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
title |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
spellingShingle |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 Frade,Tânia ZnO-TiO2 nanocomposite films AO7 dye photoelectrodegradation |
title_short |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
title_full |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
title_fullStr |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
title_full_unstemmed |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
title_sort |
Fotoeletrodegradação do corante AO7 utilizando filmes de nanocompósitos de ZnO-TiO2 |
author |
Frade,Tânia |
author_facet |
Frade,Tânia Gomes,Anabela Pereira,Maria Isabel da Silva Lopes,Ana Ciríaco,Lurdes |
author_role |
author |
author2 |
Gomes,Anabela Pereira,Maria Isabel da Silva Lopes,Ana Ciríaco,Lurdes |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Frade,Tânia Gomes,Anabela Pereira,Maria Isabel da Silva Lopes,Ana Ciríaco,Lurdes |
dc.subject.por.fl_str_mv |
ZnO-TiO2 nanocomposite films AO7 dye photoelectrodegradation |
topic |
ZnO-TiO2 nanocomposite films AO7 dye photoelectrodegradation |
description |
The Zn-TiO2nanocomposite films were prepared by electrodeposition, using an acidic zinc sulphate solution with TiO2 nanoparticles in suspension. The as-deposited samples have been heated in air at 450 ºC for 6 h. The XRD and SEM analyses pointed out to the metal matrix conversion from Zn to ZnO and a rich morphology of needles-shaped grains. These materials were used on the photoelectrochemical degradation of AO7, which was efficiently degraded, with 40% of color removal, after 2 h period at 1.0 V, under white light irradiation. The apparent first order rate constant of the photoelectrodegradation reaction was 4.12 x 10-3 min-1. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-01 |
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=S0100-40422012000100006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000100006 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422012000100006 |
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.35 n.1 2012 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_ |
1750318112754892800 |