Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/36972 |
Resumo: | Titanium dioxide (TiO2) in different forms such as films, fibers or particles are being extensively studied for removal of contaminants from aquatic environments due to its outstanding photocatalytic activity. This work reports the development of TiO2-polyamide 12 electrospun fiber mats. A systematic study on the influence of electrospun processing parameters on polymer fiber morphology was performed. It was observed that the average fiber diameter is mainly influenced by polymer concentration and average fiber diameters between 404 ± 82 nm and 1442 ± 360 nm were obtained. Polyamide-12 (PA-12) was used as a polymer matrix and electrospun with 0, 10 and 20 wt% of TiO2. It was observed that the filler does not change the average fiber diameter, being similar to that observed for neat PA-12 fibers processed under the same experimental conditions. The TiO2 were particles dispensed not only in the bulk of the polymeric matrix but also on the surface of the fibers, especially for the samples with higher filler contents. Neat and nanocomposite electrospun samples show a hydrophobic behavior and a degree of crystallinity of ~25%. The photocatalytic performance of the processed samples was measured by following the degradation capability of a chosen dye, methylene blue (MB). Results show that the nanocomposite samples have a remarkable photocatalytic activity, especially the one with a higher load of TiO2 particles (20 wt%), with all MB being removed from the solution after 100 min. |
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Development of electrospun photocatalytic TiO2-polyamide-12 nanocompositesComposite materialsSurface propertiesMicroporous materialsDifferential scanning calorimetry (DSC)Visible and ultraviolet spectrometersCiências Naturais::Ciências FísicasScience & TechnologyTitanium dioxide (TiO2) in different forms such as films, fibers or particles are being extensively studied for removal of contaminants from aquatic environments due to its outstanding photocatalytic activity. This work reports the development of TiO2-polyamide 12 electrospun fiber mats. A systematic study on the influence of electrospun processing parameters on polymer fiber morphology was performed. It was observed that the average fiber diameter is mainly influenced by polymer concentration and average fiber diameters between 404 ± 82 nm and 1442 ± 360 nm were obtained. Polyamide-12 (PA-12) was used as a polymer matrix and electrospun with 0, 10 and 20 wt% of TiO2. It was observed that the filler does not change the average fiber diameter, being similar to that observed for neat PA-12 fibers processed under the same experimental conditions. The TiO2 were particles dispensed not only in the bulk of the polymeric matrix but also on the surface of the fibers, especially for the samples with higher filler contents. Neat and nanocomposite electrospun samples show a hydrophobic behavior and a degree of crystallinity of ~25%. The photocatalytic performance of the processed samples was measured by following the degradation capability of a chosen dye, methylene blue (MB). Results show that the nanocomposite samples have a remarkable photocatalytic activity, especially the one with a higher load of TiO2 particles (20 wt%), with all MB being removed from the solution after 100 min.This work was supported by FEDER through the COMPETE Program and by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Project PEST-C/FIS/ UI607/2014, and CNPq (Conselho Nacional de Desenvolvimento Científico e Tecnol ogico e Brazil). The authors also thank funding from “Matepro eOptimizing Materials and Processes”, ref. NORTE- 07-0124-FEDER-000037”, co-funded by the “Programa Operacional Regional do Norte” (ON.2 e O Novo Norte), under the “Quadro de Refer^encia Estrat egico Nacional” (QREN), through the “Fundo Europeu de Desenvolvimento Regional” (FEDER). PM thanks the FCT for the, SFRH/BD/98616/2013 grant. VS and SLM also thank support from the COST Action MP1206 “Electrospun Nano-fibers for bio inspired composite materials and innovative industrial applications”. VS thanks the EIS Faculty at UOW for the starting grant.Elsevier Science SAUniversidade do MinhoCossich, E.Bergamasco, R.Amorim, M. T. Pessoa deMartins, P. M.Marques, J.Tavares, C. J.Lanceros-Méndez, S.Sencadas, Vítor João Gomes Silva20152015-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/36972engCossich, E., Bergamasco, R., Pessoa De Amorim, M. T., Martins, P. M., Marques, J., Tavares, C. J., . . . Sencadas, V. (2015). Development of electrospun photocatalytic TiO<inf>2</inf>-polyamide-12 nanocomposites. Materials Chemistry and Physics, 164, 91-97. doi: 10.1016/j.matchemphys.2015.08.0290254-058410.1016/j.matchemphys.2015.08.029info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:55:33ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
title |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
spellingShingle |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites Cossich, E. Composite materials Surface properties Microporous materials Differential scanning calorimetry (DSC) Visible and ultraviolet spectrometers Ciências Naturais::Ciências Físicas Science & Technology |
title_short |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
title_full |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
title_fullStr |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
title_full_unstemmed |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
title_sort |
Development of electrospun photocatalytic TiO2-polyamide-12 nanocomposites |
author |
Cossich, E. |
author_facet |
Cossich, E. Bergamasco, R. Amorim, M. T. Pessoa de Martins, P. M. Marques, J. Tavares, C. J. Lanceros-Méndez, S. Sencadas, Vítor João Gomes Silva |
author_role |
author |
author2 |
Bergamasco, R. Amorim, M. T. Pessoa de Martins, P. M. Marques, J. Tavares, C. J. Lanceros-Méndez, S. Sencadas, Vítor João Gomes Silva |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Cossich, E. Bergamasco, R. Amorim, M. T. Pessoa de Martins, P. M. Marques, J. Tavares, C. J. Lanceros-Méndez, S. Sencadas, Vítor João Gomes Silva |
dc.subject.por.fl_str_mv |
Composite materials Surface properties Microporous materials Differential scanning calorimetry (DSC) Visible and ultraviolet spectrometers Ciências Naturais::Ciências Físicas Science & Technology |
topic |
Composite materials Surface properties Microporous materials Differential scanning calorimetry (DSC) Visible and ultraviolet spectrometers Ciências Naturais::Ciências Físicas Science & Technology |
description |
Titanium dioxide (TiO2) in different forms such as films, fibers or particles are being extensively studied for removal of contaminants from aquatic environments due to its outstanding photocatalytic activity. This work reports the development of TiO2-polyamide 12 electrospun fiber mats. A systematic study on the influence of electrospun processing parameters on polymer fiber morphology was performed. It was observed that the average fiber diameter is mainly influenced by polymer concentration and average fiber diameters between 404 ± 82 nm and 1442 ± 360 nm were obtained. Polyamide-12 (PA-12) was used as a polymer matrix and electrospun with 0, 10 and 20 wt% of TiO2. It was observed that the filler does not change the average fiber diameter, being similar to that observed for neat PA-12 fibers processed under the same experimental conditions. The TiO2 were particles dispensed not only in the bulk of the polymeric matrix but also on the surface of the fibers, especially for the samples with higher filler contents. Neat and nanocomposite electrospun samples show a hydrophobic behavior and a degree of crystallinity of ~25%. The photocatalytic performance of the processed samples was measured by following the degradation capability of a chosen dye, methylene blue (MB). Results show that the nanocomposite samples have a remarkable photocatalytic activity, especially the one with a higher load of TiO2 particles (20 wt%), with all MB being removed from the solution after 100 min. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015 2015-01-01T00:00:00Z |
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://hdl.handle.net/1822/36972 |
url |
http://hdl.handle.net/1822/36972 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Cossich, E., Bergamasco, R., Pessoa De Amorim, M. T., Martins, P. M., Marques, J., Tavares, C. J., . . . Sencadas, V. (2015). Development of electrospun photocatalytic TiO<inf>2</inf>-polyamide-12 nanocomposites. Materials Chemistry and Physics, 164, 91-97. doi: 10.1016/j.matchemphys.2015.08.029 0254-0584 10.1016/j.matchemphys.2015.08.029 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science SA |
publisher.none.fl_str_mv |
Elsevier Science SA |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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