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Registro Completo |
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
27/11/2020 |
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Data da última atualização: |
16/08/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LIMA, N. A.; MENDONÇA, G. C.; SILVA, G. T. S. T.; LIMA, B. S.; PARIS, E. C.; BERNARDI, M. I. B. |
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Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
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Título: |
Influence of the synthesis method on CuWO4 nanoparticles for photocatalytic application. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Materials Science: Materials in Electronics, v. 32, n. 1, 2021. |
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Páginas: |
1139-1149 |
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ISSN: |
0957-4522 |
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DOI: |
https://doi.org/10.1007/s10854-020-04887-2 |
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Idioma: |
Inglês |
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Conteúdo: |
The textile industry is responsible for most of the consumption and inappropriate disposal of organic and highly toxic pollutants, such as dyes. Therefore, it is necessary to remediate polluting molecules before returning the water to the environment. Photocatalysis is a promising method for dye molecule degradation as it can provide complete mineralization through an efficient photocatalytic process. CuWO4 exhibits a band gap of 2.40 eV and can be excited with visible light, making it economically advantageous for industrial-scale applications. In this work, CuWO4 was synthesized by coprecipitation (CM), microwave-assisted hydrothermal (HM), and polymeric precursor (PPM) methods to evaluate the photocatalytic behavior in response to the different characteristics obtained from the synthesis routes. In photocatalytic measurements for OH· radical generation, the sacrificial agent H2O2 was used, and in order to delay the recombination process sodium oxalate and silver nitrate scavengers were applied under visible light. CuWO4 synthesized by PPM was more efficient in the dye degradation when the Ag+ scavenger was used, indicating that the predominant reaction mechanism was by direct oxidation or hydroxyl radicals. The surface charge (− 38.5 (PPM), − 29.7 (CM), and − 16.2 mV (HM)) influence was more relevant than the specific surface area (1 (PPM), 22 (CM), and 21 m2 g−1 (HM)) of the samples in the photocatalytic process. The complete degradation occurred in 80 min for the samples obtained by CM and HM and only 20 min were necessary for the sample synthesized by PPM. MenosThe textile industry is responsible for most of the consumption and inappropriate disposal of organic and highly toxic pollutants, such as dyes. Therefore, it is necessary to remediate polluting molecules before returning the water to the environment. Photocatalysis is a promising method for dye molecule degradation as it can provide complete mineralization through an efficient photocatalytic process. CuWO4 exhibits a band gap of 2.40 eV and can be excited with visible light, making it economically advantageous for industrial-scale applications. In this work, CuWO4 was synthesized by coprecipitation (CM), microwave-assisted hydrothermal (HM), and polymeric precursor (PPM) methods to evaluate the photocatalytic behavior in response to the different characteristics obtained from the synthesis routes. In photocatalytic measurements for OH· radical generation, the sacrificial agent H2O2 was used, and in order to delay the recombination process sodium oxalate and silver nitrate scavengers were applied under visible light. CuWO4 synthesized by PPM was more efficient in the dye degradation when the Ag+ scavenger was used, indicating that the predominant reaction mechanism was by direct oxidation or hydroxyl radicals. The surface charge (− 38.5 (PPM), − 29.7 (CM), and − 16.2 mV (HM)) influence was more relevant than the specific surface area (1 (PPM), 22 (CM), and 21 m2 g−1 (HM)) of the samples in the photocatalytic process. The complete degradation occurred in 80 min for the sample... Mostrar Tudo |
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Palavras-Chave: |
Oxic pollutants; Photocatalytic process. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02351naa a2200241 a 4500
001 2127141
005 2022-08-16
008 2021 bl uuuu u00u1 u #d
022 $a0957-4522
024 7 $ahttps://doi.org/10.1007/s10854-020-04887-2$2DOI
100 1 $aLIMA, N. A.
245 $aInfluence of the synthesis method on CuWO4 nanoparticles for photocatalytic application.$h[electronic resource]
260 $c2021
300 $a1139-1149
520 $aThe textile industry is responsible for most of the consumption and inappropriate disposal of organic and highly toxic pollutants, such as dyes. Therefore, it is necessary to remediate polluting molecules before returning the water to the environment. Photocatalysis is a promising method for dye molecule degradation as it can provide complete mineralization through an efficient photocatalytic process. CuWO4 exhibits a band gap of 2.40 eV and can be excited with visible light, making it economically advantageous for industrial-scale applications. In this work, CuWO4 was synthesized by coprecipitation (CM), microwave-assisted hydrothermal (HM), and polymeric precursor (PPM) methods to evaluate the photocatalytic behavior in response to the different characteristics obtained from the synthesis routes. In photocatalytic measurements for OH· radical generation, the sacrificial agent H2O2 was used, and in order to delay the recombination process sodium oxalate and silver nitrate scavengers were applied under visible light. CuWO4 synthesized by PPM was more efficient in the dye degradation when the Ag+ scavenger was used, indicating that the predominant reaction mechanism was by direct oxidation or hydroxyl radicals. The surface charge (− 38.5 (PPM), − 29.7 (CM), and − 16.2 mV (HM)) influence was more relevant than the specific surface area (1 (PPM), 22 (CM), and 21 m2 g−1 (HM)) of the samples in the photocatalytic process. The complete degradation occurred in 80 min for the samples obtained by CM and HM and only 20 min were necessary for the sample synthesized by PPM.
653 $aOxic pollutants
653 $aPhotocatalytic process
700 1 $aMENDONÇA, G. C.
700 1 $aSILVA, G. T. S. T.
700 1 $aLIMA, B. S.
700 1 $aPARIS, E. C.
700 1 $aBERNARDI, M. I. B.
773 $tJournal of Materials Science: Materials in Electronics$gv. 32, n. 1, 2021.
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| Registros recuperados : 79 | |
| 4. |  | BORTOLI, M.; PRÁ, M. C. de; KUNZ, A. Digestat treatment: nitrogen removal. KUNZ, A.; STEINMETZ, R. L. R.; AMARAL, A. C. do. Fundamentals of anaerobic digestion, biogas purification, use and treatment of digestate. Concórdia: Sbera: Embrapa Suínos e Aves, 2022. p. 126-184.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 5. | | BORTOLI, M.; PRÁ, M. C. de; KUNZ, A. Tratamento do digestato: remoção de nitrogênio. In: KUNZ, A.; STEINMETZ, R. L. R.; AMARAL, A. C. do (Ed.). Fundamentos da digestão anaeróbia, purificação do biogás, uso e tratamento do digestato. Concórdia: Sbera: Embrapa Suínos e Aves, 2019. p. 129-190. DOI: https://dx.doi.org/10.21452/978-85-93823-01-5.2019.01_6.| Tipo: Capítulo em Livro Técnico-Científico |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 6. | | PRÁ, M. C. de; KUNZ, A.; BORTOLI, M.; SCUSSIATO, L. A.; SOARES, H. M. Influência da concentração de nitrogênio em reatores com atividade anammox durante o start-up do sistema. In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 3., 2013, São Pedro, SP. Anais... São Pedro, SP: SBERA, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 7. | | SCUSSIATO, L. A.; KUNZ, A.; BORTOLI, M.; CHINI, A.; PERONDI, T.; PRÁ, M. C. de. Estabilidade do processo anammox mediante progressão de carga. In: JORNADA DE INICIAÇÃO CIENTÍFICA, 6.; SEMINÁRIO INTEGRADO DE PESQUISA E EXTENSÃO DA UnC, 2., 2012, Concórdia. Anais... Concórdia: Embrapa Suínos e Aves, 2012. p. 38. JINC. SIPEX. Projeto/Plano de Ação: 03.11.91200-03.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 8. | | CASAGRANDE, C. G.; KUNZ, A.; SOARES, H. M.; PRÁ, M. C. de; SCHIERHOLT NETO, G. F. Establishment of anammox process in sludge samples collected from swine wastewater treatment system. Engenharia Agrícola, Jaboticabal, v. 31, n. 6, p. 1170-1178, 2011. Projeto/Plano de Ação: 02.03.02.018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 10. | | RODRIGUES, H. C.; VENTURIN, B.; BOLSAN, A. C.; HOLLAS, C. E.; PRÁ, M. C. de. Conseguimos manter a atividade nitrificante de um reator operando em escala real pela ausência prolongada de aeração? In: Simpósio Luso-Brasileiro de Engenharia Sanitária e Ambiental, 20., 2022, Aveiro. Água e sustentabilidade ambiental: desafios e ação. Lisboa: APRH: APESB: Rio de Janeiro, RJ: ABES, 2022.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 13. | | PRÁ, M. C. de; KUNZ, A.; BORTOLI, M.; VIANCELLI, A.; SCUSSIATO, L. A.; SOARES, H. M. Biodiversity and quantification of functional bacteria in deammonification process. In: LATIN AMERICAN CONGRESS, 4., 2015, Florianópolis. Anais... Florianópolis: UFSC, 2015. Disponível on line. SOLABIAA.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 14. | | CHINI, A.; KUNZ, A.; SCUSSIATO, L. A.; PERONDI, T.; PRÁ, M. C. de; BORTOLI, M. Avaliação do efeito da substituição de meio sintético por efluente real no processo anammox. In: JORNADA DE INICIAÇÃO CIENTÍFICA, 6.; SEMINÁRIO INTEGRADO DE PESQUISA E EXTENSÃO DA UnC, 2., 2012, Concórdia. Anais... Concórdia: Embrapa Suínos e Aves, 2012. p. 35. JINC. SIPEX. Projeto/Plano de Ação: 03.11.91.200-03.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 19. | | MORÉS, R.; CESTONARO, T.; PRÁ, M. C. de; ABREU, P. G. de; FRANCISCON, L.; MAZZUCO, H. Efeito da qualidade da casca e total de poros de ovos em relação ao posicionamento da ave no aviário. In: CONGRESSO DE PRODUÇÃO, COMERCIALIZAÇÃO E CONSUMO DE OVOS, 7., 2009, São Pedro. Avicultura de postura: uma janela para o futuro: anais. São Paulo: APA, 2009. p. 257-259. Projeto/Plano de Ação: 03.06.62.000-03.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| 20. | | CHINI, A.; KUNZ, A.; BORTOLI, M.; PRÁ, M. C. de; PERONDI, T.; SCUSSIATO, L. A. Eficiência da remoção de nitrogênio utilizando o processo anammox em efluente da suinocultura. In: SIMPÓSIO INTERNACIONAL SOBRE GERENCIAMENTO DE RESÍDUOS AGROPECUÁRIOS E AGROINDUSTRIAIS, 3., 2013, São Pedro, SP. Anais... São Pedro, SP: SBERA, 2013.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Suínos e Aves. |
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| Registros recuperados : 79 | |
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