Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/24546
Título: | Release of volatile compounds from polymeric microcapsules mediated by photocatalytic nanoparticles |
Autor(es): | 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. |
Palavras-chave: | Photocatalysis Controlled release Nanoparticles Microcapsules Titanium dioxide TiO2 |
Data: | 3-Jul-2013 |
Editora: | Hindawi Publishing Corporation |
Revista: | International Journal of Photoenergy |
Resumo(s): | 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/24546 |
DOI: | 10.1155/2013/712603 |
ISSN: | 1110-662X |
Versão da editora: | http://www.hindawi.com/journals/ijp/2013/712603 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - GRF - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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IJP-712603-2013.pdf | 1,14 MB | Adobe PDF | Ver/Abrir |