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https://hdl.handle.net/1822/73005
Título: | Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications |
Autor(es): | Correia, F. C. Calheiros, M. Marques, Juliana Filipa Gouveia Ribeiro, J. M. Tavares, C. J. |
Palavras-chave: | Bi2O3 TiO2 Photocatalysis Reactive sputtering Vapour-liquid-solid mechanism Dendritic Bi O 2 3 |
Data: | 2018 |
Editora: | Elsevier 1 |
Revista: | Ceramics International |
Citação: | Correia, F. C., Calheiros, M., Marques, J., Ribeiro, J. M., & Tavares, C. J. (2018). Synthesis of Bi2O3/TiO2 nanostructured films for photocatalytic applications. Ceramics International, 44(18), 22638-22644. doi: https://doi.org/10.1016/j.ceramint.2018.09.040 |
Resumo(s): | Dendritic growth of bismuth oxide nanostructured films was accomplished by reactive magnetron sputtering. The deposition of the Bi2O3 template layers was adapted to abide a vapour-liquid-solid mechanism in order to develop a 3D growth morphology with high surface area templates for photocatalytic applications. TiO2 photocatalytic thin films were deposited at a later stage onto Bi2O3 layers. The obtained heterostructured films were characterized by scanning electron microscopy, X-ray diffraction and atomic force microscopy. Additionally, the photocatalytic efficiency was assessed by conducting an assay using methylene blue dye as testing pollutant under a UV-A illumination. The photocatalytic tests revealed that the Bi2O3 layers functionalized with TiO2 thin films are more efficient at degrading the pollutant, by a factor of 6, when compared with the individual layered films. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/73005 |
DOI: | 10.1016/j.ceramint.2018.09.040 |
ISSN: | 0272-8842 |
Versão da editora: | https://www.sciencedirect.com/science/article/pii/S0272884218325082 |
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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2018-CI-CTavares.pdf | 2,18 MB | Adobe PDF | Ver/Abrir |