MURCIA MESA , Julie Joseane

La presente tesis doctoral se llevó a cabo en el Grupo de Fotocatálisis Heterogénea - Aplicaciones del Instituto de Ciencia de Materiales de Sevilla ¿ España (Centro Mixto Universidad de Sevilla ¿ Consejo Superior de Investigaciones Científicas (CSIC)). En el trabajo de investigación desarrollado se utilizó como material de referencia un...

In this study, commercial and lab-prepared TiO 2 were modified by fluorination and platinum photodeposition; and the effect of these modifications over the physicochemical and photocatalytic properties of TiO 2 was evaluated. It was found that F and Pt addition leads to the modification of the optical and textural properties of TiO2. The...

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In this work, the simultaneous production of CH4 and H2 from photocatalytic reforming of glucose aqueous solution on Pd-TiO2 catalysts under UV light irradiation by Light-Emitting Diodes (LED) was investigated. The Pd-TiO2 catalysts were prepared by the photodeposition method. The Pd content was in the range 0.5-2 wt% and a photodeposition time...

In this work it was studied the efficiency of a photocatalytic process for the removal of patent blue V. This dye is very difficult to remove by conventional treatments such as adsorption or coagulation therefore the photocatalytic process is a very interesting alternative for the removal this dye mainly because it does not require expensive...

Los fotocatalizadores Pt-TiO2 y Au-TiO2 se prepararon por fotodeposición del metal noble sobre el TiO2 sulfatado. Se encontró que las propiedades ópticas, el estado de oxidación y el tamaño de partícula de las especies metálicas (Pt o Au) juegan un papel fundamental en la actividad fotocatalítica del TiO2 bajo luz visible. La actividad...

For this present work, a series of Au-metallized TiO 2 catalysts were synthesized and characterized in order to compare their performance in two different catalytic environments: the phenol degradation that occurs during the liquid phase and in the CO oxidation phase, which proceeds the gas phase. The obtained materials were analyzed by...

In this study, titanium dioxide powder obtained by the sol-gel method and TiO2nanotubes, were prepared. In order to increase the TiO2 photoactivity, the powders and nanotubes obtained were modified by dye sensitization treatment during the oxide synthesis. The sensitizers applied were Quinizarin (Q) and Zinc protoporphyrin (P). The materials...