Bentonites impregnated with TiO2 for photodegradation of methylene blue

Detalhes bibliográficos
Autor(a) principal: Rossetto, Enéderson
Data de Publicação: 2010
Outros Autores: Petkowicz, Diego Ivan, Santos, João Henrique Zimnoch dos, Pergher, Sibele Berenice Castellã, Penha, Fábio Garcia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/29119
Resumo: Four bentonites and one diatomite from Rio Negro (Argentina) were used as supports for titanium oxide (TiO2). The materials were characterized by X-ray diffraction, scanning electron microscopy, infrared spectroscopy, textural analysis by nitrogen adsorption, elemental analysis and diffuse reflectance spectroscopy. The specific surface areas calculated by the BET method were 76, 46, 80, and 31 for the bentonites and 153 m2/g for diatomite and were not changed by impregnation with TiO2. SEM analysis revealed agglomerates, probably due to titania domains on the surface. The properties of the lamellar materials were maintained after TiO2 impregnation, and all materials showed methylene blue photodegradation activity. The bentonites showed a higher activity than the commercial catalyst P25, likely due to the TiO2 distribution and better accessibility.
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spelling Rossetto, EnédersonPetkowicz, Diego IvanSantos, João Henrique Zimnoch dosPergher, Sibele Berenice CastellãPenha, Fábio Garcia2020-06-03T01:28:22Z2020-06-03T01:28:22Z2010-05PERGHER, Sibele Berenice Castellã et al. Bentonites impregnated with TiO2 for photodegradation of methylene blue. Applied Clay Science, [s. l.], v. 48, n. 4, p. 602-606, maio 2010. ISSN 0169-1317. DOI https://doi.org/10.1016/j.clay.2010.03.010. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0169131710000773?via%3Dihub. Acesso em 16 maio 2020.0169-1317https://repositorio.ufrn.br/jspui/handle/123456789/2911910.1016/j.clay.2010.03.010.ElsevierAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessBentonitesDiatomitesTitanium oxidePhotodegradationBentonites impregnated with TiO2 for photodegradation of methylene blueinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleFour bentonites and one diatomite from Rio Negro (Argentina) were used as supports for titanium oxide (TiO2). The materials were characterized by X-ray diffraction, scanning electron microscopy, infrared spectroscopy, textural analysis by nitrogen adsorption, elemental analysis and diffuse reflectance spectroscopy. The specific surface areas calculated by the BET method were 76, 46, 80, and 31 for the bentonites and 153 m2/g for diatomite and were not changed by impregnation with TiO2. SEM analysis revealed agglomerates, probably due to titania domains on the surface. The properties of the lamellar materials were maintained after TiO2 impregnation, and all materials showed methylene blue photodegradation activity. 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dc.title.pt_BR.fl_str_mv Bentonites impregnated with TiO2 for photodegradation of methylene blue
title Bentonites impregnated with TiO2 for photodegradation of methylene blue
spellingShingle Bentonites impregnated with TiO2 for photodegradation of methylene blue
Rossetto, Enéderson
Bentonites
Diatomites
Titanium oxide
Photodegradation
title_short Bentonites impregnated with TiO2 for photodegradation of methylene blue
title_full Bentonites impregnated with TiO2 for photodegradation of methylene blue
title_fullStr Bentonites impregnated with TiO2 for photodegradation of methylene blue
title_full_unstemmed Bentonites impregnated with TiO2 for photodegradation of methylene blue
title_sort Bentonites impregnated with TiO2 for photodegradation of methylene blue
author Rossetto, Enéderson
author_facet Rossetto, Enéderson
Petkowicz, Diego Ivan
Santos, João Henrique Zimnoch dos
Pergher, Sibele Berenice Castellã
Penha, Fábio Garcia
author_role author
author2 Petkowicz, Diego Ivan
Santos, João Henrique Zimnoch dos
Pergher, Sibele Berenice Castellã
Penha, Fábio Garcia
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Rossetto, Enéderson
Petkowicz, Diego Ivan
Santos, João Henrique Zimnoch dos
Pergher, Sibele Berenice Castellã
Penha, Fábio Garcia
dc.subject.por.fl_str_mv Bentonites
Diatomites
Titanium oxide
Photodegradation
topic Bentonites
Diatomites
Titanium oxide
Photodegradation
description Four bentonites and one diatomite from Rio Negro (Argentina) were used as supports for titanium oxide (TiO2). The materials were characterized by X-ray diffraction, scanning electron microscopy, infrared spectroscopy, textural analysis by nitrogen adsorption, elemental analysis and diffuse reflectance spectroscopy. The specific surface areas calculated by the BET method were 76, 46, 80, and 31 for the bentonites and 153 m2/g for diatomite and were not changed by impregnation with TiO2. SEM analysis revealed agglomerates, probably due to titania domains on the surface. The properties of the lamellar materials were maintained after TiO2 impregnation, and all materials showed methylene blue photodegradation activity. The bentonites showed a higher activity than the commercial catalyst P25, likely due to the TiO2 distribution and better accessibility.
publishDate 2010
dc.date.issued.fl_str_mv 2010-05
dc.date.accessioned.fl_str_mv 2020-06-03T01:28:22Z
dc.date.available.fl_str_mv 2020-06-03T01:28:22Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.citation.fl_str_mv PERGHER, Sibele Berenice Castellã et al. Bentonites impregnated with TiO2 for photodegradation of methylene blue. Applied Clay Science, [s. l.], v. 48, n. 4, p. 602-606, maio 2010. ISSN 0169-1317. DOI https://doi.org/10.1016/j.clay.2010.03.010. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0169131710000773?via%3Dihub. Acesso em 16 maio 2020.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/29119
dc.identifier.issn.none.fl_str_mv 0169-1317
dc.identifier.doi.none.fl_str_mv 10.1016/j.clay.2010.03.010.
identifier_str_mv PERGHER, Sibele Berenice Castellã et al. Bentonites impregnated with TiO2 for photodegradation of methylene blue. Applied Clay Science, [s. l.], v. 48, n. 4, p. 602-606, maio 2010. ISSN 0169-1317. DOI https://doi.org/10.1016/j.clay.2010.03.010. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0169131710000773?via%3Dihub. Acesso em 16 maio 2020.
0169-1317
10.1016/j.clay.2010.03.010.
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dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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