| |
|
|
| Registros recuperados : 42 | |
| 4. |  | PERES, C. H. M. A.; GIRALDI, T. R.; RIBEIRO, C. Development and characterization of thin films for application as ethanol sensors In: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES - NanoAgri, 2010, São Pedro, SP. [Anais…] São Pedro: Aptor Software, 2010. Editors: Caue Ribeiro, Odílio Benedito Garrido de Assis, Luiz Henrique Capparelli Mattoso, Sérgio Mascarenhas.| Biblioteca(s): Embrapa Instrumentação. |
|    |
| 5. | | ARRUDA, C. C.; GIRALDI, T. R.; RIBEIRO, C. Degradation of rhodamine by fenton process using magnetic ferrites nanoparticles. In: ENCONTRO DA SOCIEDADE BRASILEIRA DE PESQUISA EM MATERIAIS - SBPMat, 7., 2008, Guarujá; BRAZILIAN MRS MEETING, 7., 2008, Guarujá. Abstracts... Rio de Janeiro: SBPMat, 2008. não paginado. 1CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
|  |
| 6. | | FREGONESI, R. P.; GIRALDI, T. R.; RIBEIRO, C. Study of the photoactivated electronic transference from rhodamine B to TiO2-SnO2 encapsulated nanoparticles. In: ENCONTRO DA SOCIEDADE BRASILEIRA DE PESQUISA EM MATERIAIS - SBPMat, 7., 2008, Guarujá; BRAZILIAN MRS MEETING, 7., 2008, Guarujá. Abstracts... Rio de Janeiro: SBPMat, 2008. não paginado. 1CD-ROM.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 11. | | MORAIS, J. P. S.; THOMAZI, A. C.; MAMBRINI, G. P.; GIRALDI, T. R.; RIBEIRO, C. Análise da distribuição de tamanho de partículas de titânio metálico nanométrico. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 5., 2009, São Carlos. Anais...São Carlos, SP: Embrapa Instrumentação Agropecuária, 2009. p. 171-172| Biblioteca(s): Embrapa Algodão. |
| |
| 13. | | SANTOS, G. V. F; LUCENA, M. A. M.; RIBEIRO, C.; GIRALDI, T. R.; WEBER, I. T. Co/Mn-doped ZnO for photocatalytic degradation of Rhodamine B (RhB). In: ENCONTRO DA SBPMAT, 10.; BRAZILIAN MRS MEETING, 10., 2011, Gramado. Resumos... Rio de Janeiro: SBPMat, 2011. não paginado.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 14. | | GIRALDI, T. R.; MENDONÇA, V. R.; FONSECA, G. V.; RIBEIRO, C.; WEBER, T. Influence of surface effects and crystallinity of ZnO nanoparticles in photocatalysis In: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES - NanoAgri, 2010, São Pedro, SP. [Anais…] São Pedro: Aptor Software, 2010. Editors: Caue Ribeiro, Odílio Benedito Garrido de Assis, Luiz Henrique Capparelli Mattoso, Sérgio Mascarenhas.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 15. | | BERGER, D.; VARELA, J. A.; LAZARO, S. de; OLIVEIRA, C. R.; GIRALDI, T. R. Influence of the temperature on Sn0.75Ti0.25O2 samples used in dye photodegradation In: INTERNATIONAL CONFERENCE ON FOOD AND AGRICULTURE APPLICATIONS OF NANOTECHNOLOGIES - NanoAgri, 2010, São Pedro, SP. [Anais…] São Pedro: Aptor Software, 2010. Editors: Caue Ribeiro, Odílio Benedito Garrido de Assis, Luiz Henrique Capparelli Mattoso, Sérgio Mascarenhas.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 18. | | OLIVEIRA, J. A.; CASTRO, I. A.; RIBEIRO, C.; PARIS, E. C.; GIRALDI, T. R. Desenvolvimento de partículas de WO3:Ti aplicadas a processos oxidativos avançados para despoluição de águas. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 7.; ESCOLA DE NANOTECNOLOGIA, 3., 2013, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação, 2013. p. 445-447 Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso. CD-ROM. Editores: Maria Alice Martins, Odílio Benedito Garrido de Assis, Caue Ribeiro, Luiz Henrique Capparelli Mattoso.| Biblioteca(s): Embrapa Instrumentação. |
| |
| 19. | | CASTRO, I. A. de; OLIVEIRA, J. A. de; PARIS, E. C.; GIRALDI, T. R.; RIBEIRO, C. Production of heterostructured TiO2/WO3 nanoparticulated photocatalysts through a simple one pot method. Ceramics international, [S. l.], v. 41, n. 3, p. 3502-3510, 2015.| Biblioteca(s): Embrapa Instrumentação. |
|  |
| 20. | | SOUZA, G. de; NERY, L. H.; PARIS, E. C.; KLEIN-GUNNEWIEK, F.; GIRALDI, T. R. Nanostructured zinc oxide films obtained by the microwave hydrothermal method for application in photocatalysis. In: BRAZIL MRS MEETING - SBPMAT, 2021, Rio de Janeiro, RJ. Proceedings... Rio de Janeiro, RJ: SBPMat, 2021. 609| Biblioteca(s): Embrapa Instrumentação. |
| |
| Registros recuperados : 42 | |
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Instrumentação. |
|
Data corrente: |
30/09/2022 |
|
Data da última atualização: |
30/09/2022 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
SOUZA, G. de; NERY, L. H.; PARIS, E. C.; KLEIN-GUNNEWIEK, F.; GIRALDI, T. R. |
|
Afiliação: |
ELAINE CRISTINA PARIS, CNPDIA. |
|
Título: |
Nanostructured zinc oxide films obtained by the microwave hydrothermal method for application in photocatalysis. |
|
Ano de publicação: |
2022 |
|
Fonte/Imprenta: |
In: BRAZIL MRS MEETING - SBPMAT, 2021, Rio de Janeiro, RJ. Proceedings... Rio de Janeiro, RJ: SBPMat, 2021. |
|
Páginas: |
609 |
|
Idioma: |
Inglês |
|
Conteúdo: |
In this study, nanostructured ZnO films were synthesized by microwave hydrothermal method for application in photocatalysis. The synthesis was made starting a ethylene glycol and zinc acetate solution. Glass substract was submerged in solution and place em a reator microwaves at 180oC and 600W. The time of syntesis was varied in 10 and 30 minutes. Part of the films were dried in an oven at 100oC and part was subjected to heat treatment at 600oC. This films were characterized by DRX, DRS and SEM techniques. All films presented wurtzite crystalline structure, formation of nanoparticle clusters with average size 100nm and bandgap between 3,3 and 3,5eV. Films obtained in 10 minutes have a partially covered surface and films obtained in 30 minutes the surface was completely filled and homogeneous. The photocatalytic activity of the films was evaluated in a Rhodamine-B (RhB) degradation test in a bench reactor which was submerged in RhB solution (concentration of 5mg.L-1) and exposed to UVC radiation for 2 hours. Absorbance measurements of the solutions were made every 15 minutes in a UV-vis spectrophotometer. It was found that the heat thermal influenced in photocatalytic activity of the films. The percentage of photocatalytic activity was 69% for films obtained in 10 minutes and 76% for films obtained in 30 minutes |
|
Palavras-Chave: |
DRX; Hydrothermal method. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1147012/1/P-Nanostructured-zinc-oxide-films-obtained-by-the.pdf
|
|
Marc: |
LEADER 01975nam a2200193 a 4500
001 2147012
005 2022-09-30
008 2022 bl uuuu u00u1 u #d
100 1 $aSOUZA, G. de
245 $aNanostructured zinc oxide films obtained by the microwave hydrothermal method for application in photocatalysis.$h[electronic resource]
260 $aIn: BRAZIL MRS MEETING - SBPMAT, 2021, Rio de Janeiro, RJ. Proceedings... Rio de Janeiro, RJ: SBPMat$c2021
300 $a609
520 $aIn this study, nanostructured ZnO films were synthesized by microwave hydrothermal method for application in photocatalysis. The synthesis was made starting a ethylene glycol and zinc acetate solution. Glass substract was submerged in solution and place em a reator microwaves at 180oC and 600W. The time of syntesis was varied in 10 and 30 minutes. Part of the films were dried in an oven at 100oC and part was subjected to heat treatment at 600oC. This films were characterized by DRX, DRS and SEM techniques. All films presented wurtzite crystalline structure, formation of nanoparticle clusters with average size 100nm and bandgap between 3,3 and 3,5eV. Films obtained in 10 minutes have a partially covered surface and films obtained in 30 minutes the surface was completely filled and homogeneous. The photocatalytic activity of the films was evaluated in a Rhodamine-B (RhB) degradation test in a bench reactor which was submerged in RhB solution (concentration of 5mg.L-1) and exposed to UVC radiation for 2 hours. Absorbance measurements of the solutions were made every 15 minutes in a UV-vis spectrophotometer. It was found that the heat thermal influenced in photocatalytic activity of the films. The percentage of photocatalytic activity was 69% for films obtained in 10 minutes and 76% for films obtained in 30 minutes
653 $aDRX
653 $aHydrothermal method
700 1 $aNERY, L. H.
700 1 $aPARIS, E. C.
700 1 $aKLEIN-GUNNEWIEK, F.
700 1 $aGIRALDI, T. R.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Instrumentação (CNPDIA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
