Eu-modified ZnO nanoparticles for applications in photocatalysis
| Autor: | R. Torres-Ricárdez, M. F. García-Mendoza, L. Rojas-Blanco, Francisco Paraguay-Delgado, M.A. Hernández-Carrillo, G. Pérez-Hernández, G.E. Sepúlveda-Palacios, Lucio Díaz-Flores, E. Ramírez-Morales |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope Doping Nanoparticle Infrared spectroscopy chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Catalysis 0104 chemical sciences Ultraviolet visible spectroscopy chemistry Transmission electron microscopy Photocatalysis 0210 nano-technology Europium Nuclear chemistry |
| Zdroj: | Catalysis Today. 349:191-197 |
| ISSN: | 0920-5861 |
| DOI: | 10.1016/j.cattod.2018.04.060 |
| Popis: | Photocatalysis using semiconductor materials, such as ZnO and TiO2, allows the degradation of organic compounds through the redox process when it is irradiated by UV or solar light. In the present work the nanoparticles of ZnO and ZnO:Eu were synthesized using the forced-hydrolysis method. It was determined the effect of the heat treatment on ZnO nanoparticles at 400, 450 and 500 °C. The percentages of doped ZnO with Europium (Eu) was 0.97, 1.62 and 3% weight. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), infrared spectroscopy (FT-IR), visible ultraviolet spectroscopy (UV–vis) and the photocatalytic activity was evaluated to degradation of methylene blue (MB). The ZnO:Eu with 1.62% show MB degradation of 99.3% in 80 min. |
| Databáze: | OpenAIRE |
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