síntesis, caracterización y actividad fotocatalítica de óxido de titanio modificado con nitrógeno
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ID: 183940
2011
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Abstract
Titanium oxides (TiO<sub>2</sub>) were synthesized by precipitation of titanium tetrachloride (TiCl<sub>4</sub>) using ammonium hydroxide (NH<sub>4</sub>OH). The synthesized materials were characterized by means of nitrogen physisorption, X-ray diffraction, infrared spectroscopy, U.V.-visible diffuse reflectance spectroscopy and the photocatalytic activity of the samples were measured by the degradation of the methyl orange. By means of this synthesis method we have doped the titanium oxide structure with nitrogen (N-TiO<sub>2</sub>), stabilizing the anatase phase and obtaining mesoporous and nanocrystalline materials. The titanium oxide with higher specific surface area (132 m<sup>2</sup>/g) degraded the azo-compound to 100% in 180 min of reaction.<br><br>Se sintetizaron óxidos de titanio (TiO<sub>2</sub>) a partir de la precipitación del tetracloruro de titanio (TiCl<sub>4</sub>) con hidróxido de amonio (NH<sub>4</sub>OH). Los materiales sintetizados se caracterizaron mediante fisisorción de nitrógeno, difracción de rayos X, espectroscopía infrarroja, reflectancia difusa U.V.-visible y la actividad fotocatalítica de los mismos se evaluó en la degradación del naranja de metilo. Mediante el método de síntesis se logró dopar la estructura del óxido de titanio con nitrógeno (N-TiO<sub>2</sub>), estabilizando la fase anatasa y obteniéndose materiales catalíticos mesoporosos y nanocristalinos. El óxido de titanio de mayor área específica (132 m<sup>2</sup>/g) degradó el azo-colorante al 100% en 180 minutos de reacción.
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| Authors | ;Hernández Enríquez, J. M.;García Alamilla, R.;García Serrano, L. A.;Cueto Hernández, Y. A. |
| Journal | medicinal chemistry (shariqah (united arab emirates)) |
| Year | 2011 |
| DOI |
10.3989/cyv.322011
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| URL | |
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