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/10316/109775 https://doi.org/10.1155/2013/712603 |
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 NanoparticlesIn 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.Hindawi2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/109775http://hdl.handle.net/10316/109775https://doi.org/10.1155/2013/712603eng1110-662X1687-529XMarques, J.Oliveira, L. F.Pinto, R. T.Coutinho, P. J. G.Parpot, P.Góis, J. R.Coelho, J. F. J.Magalhães, F. D.Tavares, C. J.info: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:RCAAP2023-10-26T09:04:09Zoai:estudogeral.uc.pt:10316/109775Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:25:55.383971Repositório 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, J. |
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, J. |
author_facet |
Marques, J. Oliveira, L. F. Pinto, R. T. Coutinho, P. J. G. Parpot, P. Góis, J. R. Coelho, J. F. J. Magalhães, F. D. Tavares, C. J. |
author_role |
author |
author2 |
Oliveira, L. F. Pinto, R. T. Coutinho, P. J. G. Parpot, P. Góis, J. R. Coelho, J. F. J. Magalhães, F. D. Tavares, C. J. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Marques, J. Oliveira, L. F. Pinto, R. T. Coutinho, P. J. G. Parpot, P. Góis, J. R. Coelho, J. F. J. Magalhães, F. D. Tavares, C. J. |
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 |
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/10316/109775 http://hdl.handle.net/10316/109775 https://doi.org/10.1155/2013/712603 |
url |
http://hdl.handle.net/10316/109775 https://doi.org/10.1155/2013/712603 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1110-662X 1687-529X |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Hindawi |
publisher.none.fl_str_mv |
Hindawi |
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 |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799134140861251584 |