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| 46. |  | QUADROS, B. R. de; CONCEIÇÃO, H. E. O. da; SILVA, A. F. T. Influência de espaçamentos sobre o crescimento de plantas de helicônia, nas condições edafoclimáticas de Benevides, Pará. In: SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA UFRA, 4.; SEMINÁRIO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA AMAZÔNIA ORIENTAL, 10., 2007, Belém, PA. Anais... Belém, PA: UFRA: Embrapa Amazônia Oriental, 2007. 1 CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 51. | | VIÉGAS, I. de J. M.; FRAZÃO, D. A. C.; THOMAZ, M. A. A.; CONCEIÇÃO, H. E. O. da; PINHEIRO, E. Limitações nutricionais para o cultivo de açaizeiro em Latossolo Amarelo textura média, Estado do Pará. Revista Brasileira de Fruticultura, v. 26, n. 2, p. 382-384, ago. 2004.| Biblioteca(s): Embrapa Amazônia Oriental; Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 134 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
23/11/2022 |
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Data da última atualização: |
22/01/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MACEDO, G. K.; DIAS, E. H.; RIBEIRO, C.; LOPES, O. F. |
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Afiliação: |
CAUE RIBEIRO DE OLIVEIRA, CNPDIA. |
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Título: |
Development of bismuth oxyhalides for organic pollutant photodegradation and water oxidation: Effect of synthesis parameter and halide species. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v. 33, n. 8, 2022. |
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Páginas: |
948-957 |
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DOI: |
https://dx.doi.org/10.21577/0103-5053.20220047 |
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Idioma: |
Inglês |
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Conteúdo: |
The development of visible-light active photocatalysts is vital to harvest the solar irradiation and build efficient photoelectrochemical devices. Bismuth oxyhalide (BiOCl, BiOBr and BiOI) materials stand out due to their remarkable properties, e.g., the band gap energy can be tuned from 1.9 to 3.4 eV depends on the halide employed. However, the hydrothermal synthesis of this material class was not properly investigated and compared. Then, we evaluated the effect of the hydrothermal treatment in the BiOX?s structural, electronic, morphological and textural properties and the relationship with their photocatalytic performance. Methylene blue (MB) dye was used as probe for photocatalytic performance evaluation under ultraviolet (UV) and visible (Vis) radiation. BiOCl and BiOBr samples showed a good photoactivity under both UV and visible radiation, on other hand the BiOI samples was not active, likely due to the fast charge recombination. BiOCl and BiOBr samples exhibit a favorably interaction with MB dye, because their surfaces are negatively charged. BiOCl samples were able to promote around 40 and 80% of the MB dye degradation under visible and UV radiation, respectively. The samples were also employed as photoanode for O2 evolution, BiOI sample exhibited the best performance, due to the synergistic effect of photocatalysis and electrocatalysis. |
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Palavras-Chave: |
BiOX; Hydrothermal treatment; O2 evolution. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1148647/1/Development-of-Bismuth-Oxyhalides-for-Organic-Pollutant-Photodegradation-and-Water-Oxidation-Effect-of-Synthesis-Parameter-and-Halide-Species.pdf
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Marc: |
LEADER 02085naa a2200217 a 4500
001 2148647
005 2024-01-22
008 2022 bl uuuu u00u1 u #d
024 7 $ahttps://dx.doi.org/10.21577/0103-5053.20220047$2DOI
100 1 $aMACEDO, G. K.
245 $aDevelopment of bismuth oxyhalides for organic pollutant photodegradation and water oxidation$bEffect of synthesis parameter and halide species.$h[electronic resource]
260 $c2022
300 $a948-957
520 $aThe development of visible-light active photocatalysts is vital to harvest the solar irradiation and build efficient photoelectrochemical devices. Bismuth oxyhalide (BiOCl, BiOBr and BiOI) materials stand out due to their remarkable properties, e.g., the band gap energy can be tuned from 1.9 to 3.4 eV depends on the halide employed. However, the hydrothermal synthesis of this material class was not properly investigated and compared. Then, we evaluated the effect of the hydrothermal treatment in the BiOX?s structural, electronic, morphological and textural properties and the relationship with their photocatalytic performance. Methylene blue (MB) dye was used as probe for photocatalytic performance evaluation under ultraviolet (UV) and visible (Vis) radiation. BiOCl and BiOBr samples showed a good photoactivity under both UV and visible radiation, on other hand the BiOI samples was not active, likely due to the fast charge recombination. BiOCl and BiOBr samples exhibit a favorably interaction with MB dye, because their surfaces are negatively charged. BiOCl samples were able to promote around 40 and 80% of the MB dye degradation under visible and UV radiation, respectively. The samples were also employed as photoanode for O2 evolution, BiOI sample exhibited the best performance, due to the synergistic effect of photocatalysis and electrocatalysis.
653 $aBiOX
653 $aHydrothermal treatment
653 $aO2 evolution
700 1 $aDIAS, E. H.
700 1 $aRIBEIRO, C.
700 1 $aLOPES, O. F.
773 $tJournal of the Brazilian Chemical Society$gv. 33, n. 8, 2022.
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