Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron

Detalhes bibliográficos
Autor(a) principal: Bernardes,Arthur Alaím
Data de Publicação: 2011
Outros Autores: Bulhosa,Maria Carolina S., Gonçalves,Fábio Ferreira, D'Oca,Marcelo G. Montes, Wolke,Silvana I., Santos,João Henrique Z. dos
Tipo de documento: Artigo
Idioma: por
Título da fonte: Química Nova (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800009
Resumo: SiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 ºC). The samples were characterized by N2 adsorption-desorption measurements, scanning electron microscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy and infrared diffuse reflectance spectroscopy. The results showed that the materials synthesized with the surfactant had higher surface areas and band-gap values similar to anatase. All materials were more active than the commercial catalyst P-25 and better performance was achieved using the surfactant in the material synthesis.
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spelling Materiais SiO2-TiO2 para a degradação fotocatalítica de diuronphotocatalysissol-gel methoddiuronSiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 ºC). The samples were characterized by N2 adsorption-desorption measurements, scanning electron microscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy and infrared diffuse reflectance spectroscopy. The results showed that the materials synthesized with the surfactant had higher surface areas and band-gap values similar to anatase. All materials were more active than the commercial catalyst P-25 and better performance was achieved using the surfactant in the material synthesis.Sociedade Brasileira de Química2011-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800009Química Nova v.34 n.8 2011reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422011000800009info:eu-repo/semantics/openAccessBernardes,Arthur AlaímBulhosa,Maria Carolina S.Gonçalves,Fábio FerreiraD'Oca,Marcelo G. MontesWolke,Silvana I.Santos,João Henrique Z. dospor2011-10-06T00:00:00Zoai:scielo:S0100-40422011000800009Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2011-10-06T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
title Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
spellingShingle Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
Bernardes,Arthur Alaím
photocatalysis
sol-gel method
diuron
title_short Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
title_full Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
title_fullStr Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
title_full_unstemmed Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
title_sort Materiais SiO2-TiO2 para a degradação fotocatalítica de diuron
author Bernardes,Arthur Alaím
author_facet Bernardes,Arthur Alaím
Bulhosa,Maria Carolina S.
Gonçalves,Fábio Ferreira
D'Oca,Marcelo G. Montes
Wolke,Silvana I.
Santos,João Henrique Z. dos
author_role author
author2 Bulhosa,Maria Carolina S.
Gonçalves,Fábio Ferreira
D'Oca,Marcelo G. Montes
Wolke,Silvana I.
Santos,João Henrique Z. dos
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Bernardes,Arthur Alaím
Bulhosa,Maria Carolina S.
Gonçalves,Fábio Ferreira
D'Oca,Marcelo G. Montes
Wolke,Silvana I.
Santos,João Henrique Z. dos
dc.subject.por.fl_str_mv photocatalysis
sol-gel method
diuron
topic photocatalysis
sol-gel method
diuron
description SiO2-TiO2 materials prepared by sol-gel method were evaluated in the photocatalytic degradation of diuron. The materials were prepared with and without surfactant cetyltrimethylammonium chloride at different temperatures (25, 50 and 100 ºC). The samples were characterized by N2 adsorption-desorption measurements, scanning electron microscopy, X-ray diffraction, ultraviolet-visible diffuse reflectance spectroscopy and infrared diffuse reflectance spectroscopy. The results showed that the materials synthesized with the surfactant had higher surface areas and band-gap values similar to anatase. All materials were more active than the commercial catalyst P-25 and better performance was achieved using the surfactant in the material synthesis.
publishDate 2011
dc.date.none.fl_str_mv 2011-01-01
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=S0100-40422011000800009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000800009
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv 10.1590/S0100-40422011000800009
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.34 n.8 2011
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
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