SiO2-TiO2 Films Supported on Ignimbrite by Spray Coating for the Photocatalytic Degradation of NOx Gas and Methyl Orange Dye
[EN] n this work, a SiO-TiO coating, composed of different numbers of TiO and SiO layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO layers applied, 10 and 15 layers of SiO and 5 layers of TiO...
| Autores: | , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/212383 |
| Acceso en línea: | http://hdl.handle.net/10261/212383 |
| Access Level: | acceso abierto |
| Palabra clave: | SiO2-TiO2 Coatings Photocatalytic Degradation |
| Sumario: | [EN] n this work, a SiO-TiO coating, composed of different numbers of TiO and SiO layers, was fabricated by a spray-coating technique. The films were deposited onto ignimbrite rock and divided into two groups according to the number of SiO layers applied, 10 and 15 layers of SiO and 5 layers of TiO for each group. The morphology and chemical composition of the synthesized samples were characterized by field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectrometer (EDS), which reveal the successful SiO-TiO coating on ignimbrite. The photocatalytic activities of samples obtained were evaluated toward the decomposition of 3 ppm of methyl orange (MO). Finally, NO gas degradation was studied. The obtained results evidenced that the SiO and TiO coating improved the photocatalytic activity of ignimbrite. |
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