Release of Volatile Compounds from Polymeric Microcapsules Mediated by Photocatalytic Nanoparticles
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...
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| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/712603 |
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| author | J. Marques L. F. Oliveira R. T. Pinto P. J. G. Coutinho P. Parpot J. R. Góis J. F. J. Coelho F. D. Magalhães C. J. Tavares |
| author_facet | J. Marques L. F. Oliveira R. T. Pinto P. J. G. Coutinho P. Parpot J. R. Góis J. F. J. Coelho F. D. Magalhães C. J. Tavares |
| author_sort | J. Marques |
| collection | DOAJ |
| 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. |
| format | Article |
| id | doaj-art-bbc2b951473d46c88cf17c5375be8834 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-bbc2b951473d46c88cf17c5375be88342025-02-03T05:46:56ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/712603712603Release of Volatile Compounds from Polymeric Microcapsules Mediated by Photocatalytic NanoparticlesJ. Marques0L. F. Oliveira1R. T. Pinto2P. J. G. Coutinho3P. Parpot4J. R. Góis5J. F. J. Coelho6F. D. Magalhães7C. J. Tavares8Centre of Physics, University of Minho, 4800-058 Guimarães, PortugalCentre of Physics, University of Minho, 4800-058 Guimarães, PortugalCentre of Physics, University of Minho, 4800-058 Guimarães, PortugalCentre of Physics, University of Minho, 4800-058 Guimarães, PortugalCentre of Chemistry, University of Minho, 4710-057 Braga, PortugalChemical Engineering Department, Polo II, University of Coimbra, 3030-790 Coimbra, PortugalChemical Engineering Department, Polo II, University of Coimbra, 3030-790 Coimbra, PortugalLEPAE, Chemical Engineering Department, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, PortugalCentre of Physics, University of Minho, 4800-058 Guimarães, PortugalIn 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.http://dx.doi.org/10.1155/2013/712603 |
| spellingShingle | J. Marques L. F. Oliveira R. T. Pinto P. J. G. Coutinho P. Parpot J. R. Góis J. F. J. Coelho F. D. Magalhães C. J. Tavares Release of Volatile Compounds from Polymeric Microcapsules Mediated by Photocatalytic Nanoparticles International Journal of Photoenergy |
| title | 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_short | Release of Volatile Compounds from Polymeric Microcapsules Mediated by Photocatalytic Nanoparticles |
| title_sort | release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
| url | http://dx.doi.org/10.1155/2013/712603 |
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