Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/1757 |
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 adsorptiondesorption 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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Bernardes, Arthur AlaimBulhosa, Maria Carolina SalumGonçalves, Fábio FerreiraD'Oca, Marcelo Gonçalves MontesWolke, Silvana InêsSantos, João Henrique Zimnoch dos2012-01-17T21:55:37Z2012-01-17T21:55:37Z2011BERNARDES, Arthur Alaím et al. Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron. Química Nova, São Paulo, v. 34, n. 8, p.1343-1348, 2011. Disponível em: <www.scielo.br/pdf/qn/v34n8/09.pdf>. Acesso em: 05 jan. 2012.http://repositorio.furg.br/handle/1/1757SiO2-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 adsorptiondesorption 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.porPhotocatalysisSol-gel methodDiuronMateriais SIO2 - TIO2 para a degradação fotocatalítica de DiuronSIO2-TIO2 materials for Diuron photocatalytic degradationinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINAL01_Materiais_SIO2.pdf01_Materiais_SIO2.pdfapplication/pdf965846https://repositorio.furg.br/bitstream/1/1757/1/01_Materiais_SIO2.pdf2e9c358eb697f2504e6ae92aa78eb325MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/1757/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/17572012-01-17 19:55:37.897open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2012-01-17T21:55:37Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron |
dc.title.alternative.pt_BR.fl_str_mv |
SIO2-TIO2 materials for Diuron photocatalytic degradation |
title |
Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron |
spellingShingle |
Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron Bernardes, Arthur Alaim 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 Alaim |
author_facet |
Bernardes, Arthur Alaim Bulhosa, Maria Carolina Salum Gonçalves, Fábio Ferreira D'Oca, Marcelo Gonçalves Montes Wolke, Silvana Inês Santos, João Henrique Zimnoch dos |
author_role |
author |
author2 |
Bulhosa, Maria Carolina Salum Gonçalves, Fábio Ferreira D'Oca, Marcelo Gonçalves Montes Wolke, Silvana Inês Santos, João Henrique Zimnoch dos |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Bernardes, Arthur Alaim Bulhosa, Maria Carolina Salum Gonçalves, Fábio Ferreira D'Oca, Marcelo Gonçalves Montes Wolke, Silvana Inês Santos, João Henrique Zimnoch 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 adsorptiondesorption 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.issued.fl_str_mv |
2011 |
dc.date.accessioned.fl_str_mv |
2012-01-17T21:55:37Z |
dc.date.available.fl_str_mv |
2012-01-17T21:55:37Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
BERNARDES, Arthur Alaím et al. Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron. Química Nova, São Paulo, v. 34, n. 8, p.1343-1348, 2011. Disponível em: <www.scielo.br/pdf/qn/v34n8/09.pdf>. Acesso em: 05 jan. 2012. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/1757 |
identifier_str_mv |
BERNARDES, Arthur Alaím et al. Materiais SIO2 - TIO2 para a degradação fotocatalítica de Diuron. Química Nova, São Paulo, v. 34, n. 8, p.1343-1348, 2011. Disponível em: <www.scielo.br/pdf/qn/v34n8/09.pdf>. Acesso em: 05 jan. 2012. |
url |
http://repositorio.furg.br/handle/1/1757 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
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FURG |
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Repositório Institucional da FURG (RI FURG) |
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Repositório Institucional da FURG (RI FURG) |
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https://repositorio.furg.br/bitstream/1/1757/1/01_Materiais_SIO2.pdf https://repositorio.furg.br/bitstream/1/1757/2/license.txt |
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