Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/60397
Título: | Photocatalytic microporous membrane against the increasing problem of water emerging pollutants |
Autor(es): | Martins, Pedro M. Ribeiro, Joana Margarida Fernandes Silva Teixeira, Sara Petrovykh, Dmitri. Y. Cuniberti, Gianaurelio Pereira, Luciana Lanceros-Méndez, S. |
Palavras-chave: | Immobilization Pharmaceuticals Photocatalysis PVDF-TrFE Titanium dioxide |
Data: | 2019 |
Editora: | MDPI |
Revista: | Materials |
Citação: | Martins, Pedro M.; Ribeiro, Joana M.; Teixeira, Sara; Petrovykh, Dmitri. Y.; Cuniberti, Gianaurelio; Pereira, Luciana; Lanceros-Méndez, Senentxu, Photocatalytic microporous membrane against the increasing problem of water emerging pollutants. Materials, 12(10), 1649, 2019 |
Resumo(s): | Emerging pollutants are an essential class of recalcitrant contaminants that are not eliminated from water after conventional treatment. Here, a photocatalytic microporous membrane based on polyvinylidene difluoride-co-trifluoroethylene (PVDF−TrFE) with immobilised TiO2 nanoparticles, prepared by solvent casting, was tested against representative emerging pollutants. The structure and composition of these polymeric membranes were characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, porosimetry, and contact angle goniometry. The nanocomposites exhibited a porous structure with a uniform distribution of TiO2 nanoparticles. The addition of TiO2 did not change the structure of the polymeric matrix; however, it increased the wettability of the nanocomposite. The nanocomposites degraded 99% of methylene blue (MB), 95% of ciprofloxacin (CIP), and 48% of ibuprofen (IBP). The microporous nanocomposite exhibited no photocatalytic efficiency loss after four use cycles, corresponding to 20 h of UV irradiation. The reusability of this system confirms the promising nature of polymer nanocomposites as the basis for cost-effective and scalable treatments of emerging pollutants. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/60397 |
DOI: | 10.3390/ma12101649 |
ISSN: | 1996-1944 |
Versão da editora: | http://www.mdpi.com/journal/materials |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_51727_1.pdf | 2,06 MB | Adobe PDF | Ver/Abrir |