Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10971-018-4744-5 http://hdl.handle.net/11449/186873 |
Resumo: | Abstract: This work reports the preparation of bacterial cellulose (BC) membranes with self-cleaning properties. SiO 2 @TiO 2 (anatase) spherical nanocomposites (around 50 nm in diameter) were prepared by sol–gel process and were successfully immobilized into the BC membrane, in wet and dry states, by post-grafting method, following two different methodologies: dip-coating and spin-coating. Characterization techniques included Raman scattering, energy-dispersive X-ray spectroscopies (EDS), thermogravimetric analyses (TGA), and scanning electron microscopy (SEM). The photocatalytic activity was higher in the BC membrane in the wet state, presenting a good self-cleaning performance (fast methyl violet 2B dye decomposition in 30 min). The functional BC membranes with self-cleaning properties also presented high resistance to washing, high chemical stability, and the original features (color and texture) were maintained. [Figure not available: see fulltext.]. |
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Repositório Institucional da UNESP |
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spelling |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning propertiesDip-coatingFunctional bacterial cellulose membranePhotocatalytic activitySelf-cleaning propertiesSiO 2 @TiO 2 (anatase) nanocompositesSpin-coatingAbstract: This work reports the preparation of bacterial cellulose (BC) membranes with self-cleaning properties. SiO 2 @TiO 2 (anatase) spherical nanocomposites (around 50 nm in diameter) were prepared by sol–gel process and were successfully immobilized into the BC membrane, in wet and dry states, by post-grafting method, following two different methodologies: dip-coating and spin-coating. Characterization techniques included Raman scattering, energy-dispersive X-ray spectroscopies (EDS), thermogravimetric analyses (TGA), and scanning electron microscopy (SEM). The photocatalytic activity was higher in the BC membrane in the wet state, presenting a good self-cleaning performance (fast methyl violet 2B dye decomposition in 30 min). The functional BC membranes with self-cleaning properties also presented high resistance to washing, high chemical stability, and the original features (color and texture) were maintained. [Figure not available: see fulltext.].Institute of Chemistry São Paulo State University UNESPInstitut Charles Gerhardt Montpellier UMR5253 CNRS-ENSCM-UMUniversity of Araraquara – UNIARABrazilian Nanotechnology National Laboratory (LNNano) Brazilian Center for Research in Energy and Materials (CNPEM)Institute of Chemistry São Paulo State University UNESPUniversidade Estadual Paulista (Unesp)UMR5253 CNRS-ENSCM-UMUniversity of Araraquara – UNIARABrazilian Center for Research in Energy and Materials (CNPEM)Monteiro, A. S. [UNESP]Domeneguetti, R. R. [UNESP]Wong Chi Man, M.Barud, H. S.Teixeira-Neto, E.Ribeiro, S. J.L. [UNESP]2019-10-06T15:18:20Z2019-10-06T15:18:20Z2019-01-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2-11http://dx.doi.org/10.1007/s10971-018-4744-5Journal of Sol-Gel Science and Technology, v. 89, n. 1, p. 2-11, 2019.1573-48460928-0707http://hdl.handle.net/11449/18687310.1007/s10971-018-4744-52-s2.0-85049957089Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Sol-Gel Science and Technologyinfo:eu-repo/semantics/openAccess2021-10-23T20:19:25Zoai:repositorio.unesp.br:11449/186873Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:12:38.640614Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
title |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
spellingShingle |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties Monteiro, A. S. [UNESP] Dip-coating Functional bacterial cellulose membrane Photocatalytic activity Self-cleaning properties SiO 2 @TiO 2 (anatase) nanocomposites Spin-coating |
title_short |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
title_full |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
title_fullStr |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
title_full_unstemmed |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
title_sort |
Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties |
author |
Monteiro, A. S. [UNESP] |
author_facet |
Monteiro, A. S. [UNESP] Domeneguetti, R. R. [UNESP] Wong Chi Man, M. Barud, H. S. Teixeira-Neto, E. Ribeiro, S. J.L. [UNESP] |
author_role |
author |
author2 |
Domeneguetti, R. R. [UNESP] Wong Chi Man, M. Barud, H. S. Teixeira-Neto, E. Ribeiro, S. J.L. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) UMR5253 CNRS-ENSCM-UM University of Araraquara – UNIARA Brazilian Center for Research in Energy and Materials (CNPEM) |
dc.contributor.author.fl_str_mv |
Monteiro, A. S. [UNESP] Domeneguetti, R. R. [UNESP] Wong Chi Man, M. Barud, H. S. Teixeira-Neto, E. Ribeiro, S. J.L. [UNESP] |
dc.subject.por.fl_str_mv |
Dip-coating Functional bacterial cellulose membrane Photocatalytic activity Self-cleaning properties SiO 2 @TiO 2 (anatase) nanocomposites Spin-coating |
topic |
Dip-coating Functional bacterial cellulose membrane Photocatalytic activity Self-cleaning properties SiO 2 @TiO 2 (anatase) nanocomposites Spin-coating |
description |
Abstract: This work reports the preparation of bacterial cellulose (BC) membranes with self-cleaning properties. SiO 2 @TiO 2 (anatase) spherical nanocomposites (around 50 nm in diameter) were prepared by sol–gel process and were successfully immobilized into the BC membrane, in wet and dry states, by post-grafting method, following two different methodologies: dip-coating and spin-coating. Characterization techniques included Raman scattering, energy-dispersive X-ray spectroscopies (EDS), thermogravimetric analyses (TGA), and scanning electron microscopy (SEM). The photocatalytic activity was higher in the BC membrane in the wet state, presenting a good self-cleaning performance (fast methyl violet 2B dye decomposition in 30 min). The functional BC membranes with self-cleaning properties also presented high resistance to washing, high chemical stability, and the original features (color and texture) were maintained. [Figure not available: see fulltext.]. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:18:20Z 2019-10-06T15:18:20Z 2019-01-15 |
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://dx.doi.org/10.1007/s10971-018-4744-5 Journal of Sol-Gel Science and Technology, v. 89, n. 1, p. 2-11, 2019. 1573-4846 0928-0707 http://hdl.handle.net/11449/186873 10.1007/s10971-018-4744-5 2-s2.0-85049957089 |
url |
http://dx.doi.org/10.1007/s10971-018-4744-5 http://hdl.handle.net/11449/186873 |
identifier_str_mv |
Journal of Sol-Gel Science and Technology, v. 89, n. 1, p. 2-11, 2019. 1573-4846 0928-0707 10.1007/s10971-018-4744-5 2-s2.0-85049957089 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Sol-Gel Science and Technology |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2-11 |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808128480099958784 |