Bacterial cellulose–SiO 2 @TiO 2 organic–inorganic hybrid membranes with self-cleaning properties

Detalhes bibliográficos
Autor(a) principal: Monteiro, A. S. [UNESP]
Data de Publicação: 2019
Outros Autores: Domeneguetti, R. R. [UNESP], Wong Chi Man, M., Barud, H. S., Teixeira-Neto, E., Ribeiro, S. J.L. [UNESP]
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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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
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