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| 11. |  | MIRANDA, V. J.; VIANA, A. A. B.; OLIVEIRA NETO, O. B de; CARNEIRO, R. M. D. G.; SA, M. F. G. de; FRAGOSO, R. da R. Codificador transcrito da enzima de conjugação a ubiquitina (E2) ativado em galhas de soja inoculada com Meloidogyne incognita. In: CONGRESSO BRASILEIRO DE NEMATOLOGIA, 29., 2011, Brasília, DF. Anais... Brasília, DF: Sociedade Brasileira de Nematologia, 2011. p. 152-153.| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
20/09/2021 |
|
Data da última atualização: |
10/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
MACHADO, M. B. M. de; CEBIM, M. A.; MEIRELLES, M. R.; PARIS, E. C.; ROSA, A. H. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
|
Título: |
Influence of terbium (III) ions on the photocatalytic activity of TiO2 and CeO2 for the degradation of methylene blue in industrial effluents. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 28, 2021. |
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Páginas: |
27147?27161 |
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ISSN: |
0944-1344 |
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DOI: |
https://doi.org/10.1007/s11356-021-12571-z |
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Idioma: |
Inglês |
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Conteúdo: |
This study reports the preparation of TiO2 and CeO2 doped with different quantities of terbium and discusses the influence of this dopant on the photocatalytic activity of the semiconductors, with respect to the degradation of methylene blue, under ultraviolet and solar radiations. The oxides obtained were characterized by X-ray diffraction, infrared vibrational spectroscopy, diffuse reflectance spectroscopy, scanning electron microscopy, and dispersive energy spectroscopy. The results indicate that the presence of the dopant in TiO2 favored the formation of the anatase crystalline phase to the detriment of rutile, increased the band gap energy, and decreased the size of the nanoparticles. Doping CeO2 with Tb resulted in a fluorite-type crystalline structure, reduced band gap, and smaller particle size. The photocatalytic activity decreases as the concentration of terbium increases regardless of the radiation source and nature of the oxide. Furthermore, a better performance was observed for all semiconductors excited by solar radiation in comparison to ultraviolet light. The samples of pure TiO2 and TiO2 doped with 0.5 and 1% terbium showed total removal of the dye after less than 120 min of reaction, while the samples of pure CeO2 and CeO2 doped with 0.5% terbium showed approximately 80% and 57% of dye removal after 120 min, suggesting that these materials can be promising for the treatment of industrial effluents. |
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Palavras-Chave: |
Doping; Industrial effluent treatment; Photocatalytic activity; TiO2. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02260naa a2200253 a 4500
001 2134589
005 2022-06-10
008 2021 bl uuuu u00u1 u #d
022 $a0944-1344
024 7 $ahttps://doi.org/10.1007/s11356-021-12571-z$2DOI
100 1 $aMACHADO, M. B. M. de
245 $aInfluence of terbium (III) ions on the photocatalytic activity of TiO2 and CeO2 for the degradation of methylene blue in industrial effluents.$h[electronic resource]
260 $c2021
300 $a27147?27161
520 $aThis study reports the preparation of TiO2 and CeO2 doped with different quantities of terbium and discusses the influence of this dopant on the photocatalytic activity of the semiconductors, with respect to the degradation of methylene blue, under ultraviolet and solar radiations. The oxides obtained were characterized by X-ray diffraction, infrared vibrational spectroscopy, diffuse reflectance spectroscopy, scanning electron microscopy, and dispersive energy spectroscopy. The results indicate that the presence of the dopant in TiO2 favored the formation of the anatase crystalline phase to the detriment of rutile, increased the band gap energy, and decreased the size of the nanoparticles. Doping CeO2 with Tb resulted in a fluorite-type crystalline structure, reduced band gap, and smaller particle size. The photocatalytic activity decreases as the concentration of terbium increases regardless of the radiation source and nature of the oxide. Furthermore, a better performance was observed for all semiconductors excited by solar radiation in comparison to ultraviolet light. The samples of pure TiO2 and TiO2 doped with 0.5 and 1% terbium showed total removal of the dye after less than 120 min of reaction, while the samples of pure CeO2 and CeO2 doped with 0.5% terbium showed approximately 80% and 57% of dye removal after 120 min, suggesting that these materials can be promising for the treatment of industrial effluents.
653 $aDoping
653 $aIndustrial effluent treatment
653 $aPhotocatalytic activity
653 $aTiO2
700 1 $aCEBIM, M. A.
700 1 $aMEIRELLES, M. R.
700 1 $aPARIS, E. C.
700 1 $aROSA, A. H.
773 $tEnvironmental Science and Pollution Research$gv. 28, 2021.
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