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http://cio.repositorioinstitucional.mx/jspui/handle/1002/988| Effect of Eu3 + concentration on the photocatalytic activity of LaSr2AlO5 powders | |
| LUIS ARMANDO DIAZ TORRES | |
| En Embargo | |
| 01-08-2020 | |
| Atribución-NoComercial-SinDerivadas | |
| The photocatalytic activity of LaSr2AlO5:Eu3 + (LSA:Eu) ceramic powders was studied by monitoring the degradation of methylene blue (MB) dye in water under UV excitation (253 nm). Several LSA:Eu samples were fabricated with Eu3 + concentrations from 1 to 10 at.%. XRD patterns show a single tetragonal phase for all LSA:Eu samples. Scanning electron micrographs of the ceramic powders depicted coalesced particles with average sizes in the range of 3.5–4.27 μm. The optical bandgap of these powders varies between 4.7 eV and 5.1 eV depending on the Eu3 + concentration. The results of photocatalytic activity indicate that MB degradation rate increases as the Eu content increases. In fact, total MB degradation is reached after 360 min under UV light by using LSA:Eu (10 at.%) powders, and these can be removed easily after photocatalytic water treatment. Thus, LSA:Eu powders could be potential photocatalyst for water cleaning applications. | |
| 09-07-2015 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2015 |