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Registro Completo |
Biblioteca(s): |
Embrapa Hortaliças. |
Data corrente: |
09/09/1996 |
Data da última atualização: |
09/09/1996 |
Autoria: |
ROSA, J.; PEIL, R. M.; MARTINS, S. R.; MENDEZ, M. E.; SCHWENGBER, J. E. |
Afiliação: |
UFPEL/FAEM, Pelotas, RS. |
Título: |
Avaliacao de cultivares de alface em estufa plastica no inverno no sul do Rio Grande do Sul. |
Ano de publicação: |
1996 |
Fonte/Imprenta: |
Horticultura Brasileira, Brasilia, v.14, n.1, p.113, maio 1996. |
Idioma: |
Português |
Notas: |
Resumo. |
Palavras-Chave: |
Avaliacao; Brasil; Evaluation; Plastic film covers; Plastic house; Rio Grande do Sul. |
Thesagro: |
Alface; Estufa Plástica; Lactuca Sativa; Variedade. |
Thesaurus Nal: |
Brazil; lettuce; varieties. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00866naa a2200325 a 4500 001 1755628 005 1996-09-09 008 1996 bl uuuu u00u1 u #d 100 1 $aROSA, J. 245 $aAvaliacao de cultivares de alface em estufa plastica no inverno no sul do Rio Grande do Sul. 260 $c1996 500 $aResumo. 650 $aBrazil 650 $alettuce 650 $avarieties 650 $aAlface 650 $aEstufa Plástica 650 $aLactuca Sativa 650 $aVariedade 653 $aAvaliacao 653 $aBrasil 653 $aEvaluation 653 $aPlastic film covers 653 $aPlastic house 653 $aRio Grande do Sul 700 1 $aPEIL, R. M. 700 1 $aMARTINS, S. R. 700 1 $aMENDEZ, M. E. 700 1 $aSCHWENGBER, J. E. 773 $tHorticultura Brasileira, Brasilia$gv.14, n.1, p.113, maio 1996.
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Embrapa Hortaliças (CNPH) |
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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
Biblioteca(s): |
Embrapa Instrumentação. |
Data corrente: |
20/09/2021 |
Data da última atualização: |
10/06/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
MACHADO, M. B. M. de; CEBIM, M. A.; MEIRELLES, M. R.; PARIS, E. C.; ROSA, A. H. |
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. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Environmental Science and Pollution Research, v. 28, 2021. |
Páginas: |
27147?27161 |
ISSN: |
0944-1344 |
DOI: |
https://doi.org/10.1007/s11356-021-12571-z |
Idioma: |
Inglês |
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. |
Palavras-Chave: |
Doping; Industrial effluent treatment; Photocatalytic activity; TiO2. |
Categoria do assunto: |
-- |
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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