TiO2/CuO films obtained by citrate precursor method for photocatalytic application
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://www.scirp.org/journal/PaperInformation.aspx?PaperID=5381#.VUy9no5VhHw http://hdl.handle.net/11449/123601 |
Resumo: | In the present work, the hybrid catalyst films of TiO2/CuO containing up to 10% in mol of copper were deposited onto glass surface. Precursor solutions were obtained by citrate precursor method. Films were porous and the average particle size was 20 nm determined by FEG-SEM analysis. The photocatalytic activities of these films were studied using Rhodamine B as a target compound in a fixed bed reactor developed in our laboratory and UV lamp. It was observed that the addition of copper to TiO2 increased significantly its photocatalytic activity during the oxidation of Rhodamine B. The degradation exceeded 90% within 48 hours of irradiation compared to 38% when pure TiO2 was used. Moreover, there was a reduction in the particles band gap energy when compared to that of pure TiO2. These results indicate that the TiO2/CuO films are promising catalysts for the development of fixed bed reactors to be used to treat effluents containing azo dyes. |
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Repositório Institucional da UNESP |
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TiO2/CuO films obtained by citrate precursor method for photocatalytic applicationfotocatálisesíntese hidrotérmicaCitratesRhodamine BIn the present work, the hybrid catalyst films of TiO2/CuO containing up to 10% in mol of copper were deposited onto glass surface. Precursor solutions were obtained by citrate precursor method. Films were porous and the average particle size was 20 nm determined by FEG-SEM analysis. The photocatalytic activities of these films were studied using Rhodamine B as a target compound in a fixed bed reactor developed in our laboratory and UV lamp. It was observed that the addition of copper to TiO2 increased significantly its photocatalytic activity during the oxidation of Rhodamine B. The degradation exceeded 90% within 48 hours of irradiation compared to 38% when pure TiO2 was used. Moreover, there was a reduction in the particles band gap energy when compared to that of pure TiO2. These results indicate that the TiO2/CuO films are promising catalysts for the development of fixed bed reactors to be used to treat effluents containing azo dyes.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação de Amparo à Pesquisa de Minas Gerais (FAPEMIG)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual Paulista Júlio de Mesquita Filho, Instituto de Química de AraraquaraUniversidade Estadual Paulista (Unesp)Universidade Federal de Itajubá (UNIFEI)Perazolli, Leinig [UNESP]Nuñez, Luciana [UNESP]Silva, Milady Renata Apolinário daPegler, Guilherme Francisco [UNESP]Costalonga, Ademir Geraldo Cavallari [UNESP]Gimenes, RossanoKondo, Márcia MatikoZaghete, Maria Aparecida [UNESP]2015-05-15T13:30:29Z2015-05-15T13:30:29Z2011info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article564-571application/pdfhttp://www.scirp.org/journal/PaperInformation.aspx?PaperID=5381#.VUy9no5VhHwMaterials Sciences and Applications, v. 2, p. 564-571, 2011.2153-117Xhttp://hdl.handle.net/11449/12360110.4236/msa.2011.26075ISSN2153-117X-2011-02-564-571.pdf32339425114965833822723627284619829210967858789176458449362726526600147460290032Currículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMaterials Sciences and Applicationsinfo:eu-repo/semantics/openAccess2024-01-28T06:48:33Zoai:repositorio.unesp.br:11449/123601Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:08:45.607940Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
title |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
spellingShingle |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application Perazolli, Leinig [UNESP] fotocatálise síntese hidrotérmica Citrates Rhodamine B |
title_short |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
title_full |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
title_fullStr |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
title_full_unstemmed |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
title_sort |
TiO2/CuO films obtained by citrate precursor method for photocatalytic application |
author |
Perazolli, Leinig [UNESP] |
author_facet |
Perazolli, Leinig [UNESP] Nuñez, Luciana [UNESP] Silva, Milady Renata Apolinário da Pegler, Guilherme Francisco [UNESP] Costalonga, Ademir Geraldo Cavallari [UNESP] Gimenes, Rossano Kondo, Márcia Matiko Zaghete, Maria Aparecida [UNESP] |
author_role |
author |
author2 |
Nuñez, Luciana [UNESP] Silva, Milady Renata Apolinário da Pegler, Guilherme Francisco [UNESP] Costalonga, Ademir Geraldo Cavallari [UNESP] Gimenes, Rossano Kondo, Márcia Matiko Zaghete, Maria Aparecida [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Itajubá (UNIFEI) |
dc.contributor.author.fl_str_mv |
Perazolli, Leinig [UNESP] Nuñez, Luciana [UNESP] Silva, Milady Renata Apolinário da Pegler, Guilherme Francisco [UNESP] Costalonga, Ademir Geraldo Cavallari [UNESP] Gimenes, Rossano Kondo, Márcia Matiko Zaghete, Maria Aparecida [UNESP] |
dc.subject.por.fl_str_mv |
fotocatálise síntese hidrotérmica Citrates Rhodamine B |
topic |
fotocatálise síntese hidrotérmica Citrates Rhodamine B |
description |
In the present work, the hybrid catalyst films of TiO2/CuO containing up to 10% in mol of copper were deposited onto glass surface. Precursor solutions were obtained by citrate precursor method. Films were porous and the average particle size was 20 nm determined by FEG-SEM analysis. The photocatalytic activities of these films were studied using Rhodamine B as a target compound in a fixed bed reactor developed in our laboratory and UV lamp. It was observed that the addition of copper to TiO2 increased significantly its photocatalytic activity during the oxidation of Rhodamine B. The degradation exceeded 90% within 48 hours of irradiation compared to 38% when pure TiO2 was used. Moreover, there was a reduction in the particles band gap energy when compared to that of pure TiO2. These results indicate that the TiO2/CuO films are promising catalysts for the development of fixed bed reactors to be used to treat effluents containing azo dyes. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011 2015-05-15T13:30:29Z 2015-05-15T13:30:29Z |
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.uri.fl_str_mv |
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=5381#.VUy9no5VhHw Materials Sciences and Applications, v. 2, p. 564-571, 2011. 2153-117X http://hdl.handle.net/11449/123601 10.4236/msa.2011.26075 ISSN2153-117X-2011-02-564-571.pdf 3233942511496583 3822723627284619 8292109678587891 7645844936272652 6600147460290032 |
url |
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=5381#.VUy9no5VhHw http://hdl.handle.net/11449/123601 |
identifier_str_mv |
Materials Sciences and Applications, v. 2, p. 564-571, 2011. 2153-117X 10.4236/msa.2011.26075 ISSN2153-117X-2011-02-564-571.pdf 3233942511496583 3822723627284619 8292109678587891 7645844936272652 6600147460290032 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Materials Sciences and Applications |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
564-571 application/pdf |
dc.source.none.fl_str_mv |
Currículo Lattes reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129589264777216 |