| Campo DC | Valor | Idioma |
|---|
| dc.contributor.author | Ramírez, Alfonso E. | - |
| dc.contributor.author | Montero Muñoz, Marly | - |
| dc.contributor.author | López, Lizbeth L. | - |
| dc.contributor.author | Ramos Ibarra, Jesús Ernesto | - |
| dc.contributor.author | Huamaní Coaquira, José Antonio | - |
| dc.contributor.author | Heinrichs, Benoît | - |
| dc.contributor.author | Páez, Carlos A. | - |
| dc.date.accessioned | 2021-05-17T14:02:32Z | - |
| dc.date.available | 2021-05-17T14:02:32Z | - |
| dc.date.issued | 2021-02-02 | - |
| dc.identifier.citation | RAMÍREZ, Alfonso E. et al. Significantly enhancement of sunlight photocatalytic performance of ZnO by doping with transition metal oxides. Scientific Reports, v. 11, 2804, 2021. DOI: https://doi.org/10.1038/s41598-020-78568-9. Disponível em:https://www.nature.com/articles/s41598-020-78568-9. Acesso em: 17 maio 2021. | pt_BR |
| dc.identifier.uri | https://repositorio.unb.br/handle/10482/40922 | - |
| dc.language.iso | Inglês | pt_BR |
| dc.publisher | Springer Nature | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Significantly enhancement of sunlight photocatalytic performance of ZnO by doping with transition metal oxides | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Ciência de materiais | pt_BR |
| dc.subject.keyword | Nanociência | pt_BR |
| dc.subject.keyword | Tecnologia | pt_BR |
| dc.rights.license | Open Access Tis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. | pt_BR |
| dc.description.abstract1 | In this study we report, the synthesis of ZnO and its doping with Transition Metal Oxides -TMO-, such as Cr2O3, MnO2, FeO, CoO, NiO, Cu2O and CuO. Various characterization techniques were employed to investigate the structural properties. The X-ray diffraction (XRD) data and Rietveld refinement confirmed the presence of TMO phases and that the ZnO structure was not affected by the doping with TMO which was corroborated using transmission Electron microscopy (TEM). Surface areas were low due to blockage of adsorption sites by particle aggregation. TMO doping concentration in the range of 3.7–5.1% was important to calculate the catalytic activity. The UV–Visible spectra showed the variation in the band gap of TMO/ZnO ranging from 3.45 to 2.46 eV. The surface catalyzed decomposition of H2O2 was used as the model reaction to examine the photocatalytic activity following the oxygen production and the systems were compared to bulk ZnO and commercial TiO2-degussa (Aeroxyde-P25). The results indicate that the introduction of TMO species increase significantly the photocatalytic activity. The sunlight photocatalytic performance in ZnO-doped was greater than bulk-ZnO and in the case of MnO2, CoO, Cu2O and CuO surpasses TiO2 (P25-Degussa). This report opens up a new pathway to the design of high-performance materials used in photocatalytic degradation under visible light irradiation. | pt_BR |
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