Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles
Autor(a) principal: | |
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Data de Publicação: | 2013 |
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/1822/24546 |
Resumo: | In this study we propose a suitable method for the solar-activated controlled release of volatile compounds from polymeric microcapsules bonded with photocatalytic nanoparticles. These reservoirs can find applications, for example, in the controlled release of insecticides, repellents, or fragrances, amongst other substances. The surfaces of the microcapsules have been functionalized with TiO2 nanoparticles.Upon ultraviolet irradiation, redox mechanisms are initiated on the semiconductor surface resulting in the dissociation of the polymer chains of the capsule wall and, finally, volatilization of the encapsulated compounds. The quantification of the output release has been performed by gas chromatography analysis coupled with mass spectroscopy. |
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Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticlesPhotocatalysisControlled releaseNanoparticlesMicrocapsulesTitanium dioxideTiO2Science & TechnologyIn this study we propose a suitable method for the solar-activated controlled release of volatile compounds from polymeric microcapsules bonded with photocatalytic nanoparticles. These reservoirs can find applications, for example, in the controlled release of insecticides, repellents, or fragrances, amongst other substances. The surfaces of the microcapsules have been functionalized with TiO2 nanoparticles.Upon ultraviolet irradiation, redox mechanisms are initiated on the semiconductor surface resulting in the dissociation of the polymer chains of the capsule wall and, finally, volatilization of the encapsulated compounds. The quantification of the output release has been performed by gas chromatography analysis coupled with mass spectroscopy.Strategic Project PEST-C/FIS/UI607/2011 and PTDC/CTMNAN/119979/2010 ProjectHindawi Publishing CorporationUniversidade do MinhoMarques, Juliana Filipa GouveiaOiveira, L. FilipaPinto, RenatoCoutinho, Paulo J. G.Parpot, PierGois, J. R.Coelho, J. F. J.Magalhães, F. D.Tavares, C. J.2013-07-032013-07-03T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/24546eng1110-662X10.1155/2013/712603http://www.hindawi.com/journals/ijp/2013/712603info: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:RCAAP2023-07-21T12:47:08Zoai:repositorium.sdum.uminho.pt:1822/24546Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:45:12.904393Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
title |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
spellingShingle |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles Marques, Juliana Filipa Gouveia Photocatalysis Controlled release Nanoparticles Microcapsules Titanium dioxide TiO2 Science & Technology |
title_short |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
title_full |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
title_fullStr |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
title_full_unstemmed |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
title_sort |
Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
author |
Marques, Juliana Filipa Gouveia |
author_facet |
Marques, Juliana Filipa Gouveia Oiveira, L. Filipa Pinto, Renato Coutinho, Paulo J. G. Parpot, Pier Gois, J. R. Coelho, J. F. J. Magalhães, F. D. Tavares, C. J. |
author_role |
author |
author2 |
Oiveira, L. Filipa Pinto, Renato Coutinho, Paulo J. G. Parpot, Pier Gois, J. R. Coelho, J. F. J. Magalhães, F. D. Tavares, C. J. |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Marques, Juliana Filipa Gouveia Oiveira, L. Filipa Pinto, Renato Coutinho, Paulo J. G. Parpot, Pier Gois, J. R. Coelho, J. F. J. Magalhães, F. D. Tavares, C. J. |
dc.subject.por.fl_str_mv |
Photocatalysis Controlled release Nanoparticles Microcapsules Titanium dioxide TiO2 Science & Technology |
topic |
Photocatalysis Controlled release Nanoparticles Microcapsules Titanium dioxide TiO2 Science & Technology |
description |
In this study we propose a suitable method for the solar-activated controlled release of volatile compounds from polymeric microcapsules bonded with photocatalytic nanoparticles. These reservoirs can find applications, for example, in the controlled release of insecticides, repellents, or fragrances, amongst other substances. The surfaces of the microcapsules have been functionalized with TiO2 nanoparticles.Upon ultraviolet irradiation, redox mechanisms are initiated on the semiconductor surface resulting in the dissociation of the polymer chains of the capsule wall and, finally, volatilization of the encapsulated compounds. The quantification of the output release has been performed by gas chromatography analysis coupled with mass spectroscopy. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-07-03 2013-07-03T00:00:00Z |
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/1822/24546 |
url |
http://hdl.handle.net/1822/24546 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1110-662X 10.1155/2013/712603 http://www.hindawi.com/journals/ijp/2013/712603 |
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 |
Hindawi Publishing Corporation |
publisher.none.fl_str_mv |
Hindawi Publishing Corporation |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
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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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133016435458048 |