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Browsing by Subject "Photocatalyst"

Now showing items 1-17 of 17

3D Structured Graphenes as (Photo)Catalysts

García Mulero, Ana (Universitat Politècnica de València, 2023-03-20)

[ES] En la actualidad, el elevado consume energético y el aumento de la concentración de CO2 en la atmósfera han hecho necesaria la búsqueda de nuevas opciones para los procesos actuales. Una respuesta ha sido el aprovechamiento ...
Active site imprinting on Ti oxocluster metal-organic frameworks for photocatalytic hydrogen release from formic acid

García-Baldoví, Alberto; Del Angel, Raquel; Mouchaham, Georges; Liu, Shanping; Fan, Dong; Maurin, Guillaume; Navalón Oltra, Sergio; Serre, Christian; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2023-01-18)

[EN] On-board hydrogen release from liquid organic carriers is a process that can make feasible the use of H-2 as a transportation fuel. Formic acid is considered as one of the most convenient liquid hydrogen organic ...
Cathodoluminescence characterization of Zno/Zns nanostructures anodized under hydrodynamic conditions

Sanz-Marco, Arturo; Sánchez Tovar, Rita; Montes Bajo, Miguel; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2018)

[EN] ZnO/ZnS nanostructures were successfully synthesized by a simple electrochemical anodization of zinc in a glycerol based electrolyte containing sulfide-ammonium fluoride. The influence of different hydrodynamic ...
Controlled hydrodynamic conditions on the formation of iron oxide nanostructures synthesized by electrochemical anodization: Effect of the electrode rotation speed

Lucas-Granados, Bianca; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2017-01-15)

[EN] Iron oxide nanostructures are of particular interest because they can be used as photocatalysts in water splitting due to their advantageous properties. Electrochemical anodization is one of the best techniques to ...
Degradation of N-methyl 2-pyrrolidone trough advanced oxidation process in presence of Bismuth-based heterogenous catalysts

Molina García, Miquel (Universitat Politècnica de València, 2022-07-19)

[EN] This study investigates the degradation of N-methyl-2-pyrrolidone (NMP) by UV-C and UV-C/PMS-treatment processes. The degradation of NMP was less than 2% by UV-C photolysis. To enhance the degradation of NMP, zinc and ...
Developing a novel Ti-doped γAl2O3 xerogel with high photocatalytic chemical and microbial removal performance: Characterization and mechanistic insights

Ostovar, Somayeh; Moussavi, Gholamreza; Mohammadi, Samira; Marín García, Mª Luisa; Bosca Mayans, Francisco; Diego-López, Ander; Giannakis, Stefanos (Elsevier, 2023-05-15)

[EN] In this work, a Ti-doped alumina (Ti-Al2O3) xerogel (TAX) was synthesized from Al powder as a cost-effective precursor. Full physical, chemical, structural, and electrochemical characterization of the prepared materials ...
Doped Framework Iron Hydroxyl Phosphate as Photocatalyst for Hydrogen Production from Water/Methanol Mixtures

Serra, Marco; García Baldoví, Hermenegildo; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Wiley, 2015-09)

[EN] In the search for novel photocatalysts for hydrogen production and with the alpha-Fe2O3 photoelectrocatalyst as a recent precedent, we report herein the preparation, semiconductor properties and photocatalytic activity ...
Estudio de la actividad y estabilidad de fotoelectrodos basados en grafenos dopados para la producción de hidrógeno

Navarro Gázquez, Pedro José (Universitat Politècnica de València, 2019-09-02)

[ES] El objetivo del presente Trabajo Fin de Máster (TFM) es estudiar la eficiencia de fotoelectrodos preparados a base de grafeno dopado para la producción fotoelectroquímica de hidrógeno a partir de agua. Además, se ...
Estudio de nuevos fotocatalizadores para la obtención de combustibles solares

Segura Sanchis, Elena (Universitat Politècnica de València, 2017-10-25)

The aim of this Master Thesis is to synthesize a new material to be used as photocatalyst in the production of hydrogen from water triggered by sunlight. First, the photocatalytic material was synthesized, since this ...
Experimental and theoretical investigations on the polymorphism and metastability of BiPO4

Achary, S. N.; Errandonea, Daniel; Muñoz, Alfonso; Rodríguez Hernández, Plácida; Manjón Herrera, Francisco Javier; Krishna, P. S. R.; Patwe, S. J.; Grover, V.; Tyagi, A. (Royal Society of Chemistry, 2013)

In this work we report the metastability and the energetics of the phase transitions of three different polymorphs of BiPO4, namely trigonal (Phase-I, space group P3(1)21), monoclinic monazite-type (Phase-II, space group ...
Norfloxacin mineralization under light exposure using Sb-SnO2 ceramic anodes coated with BiFeO3 photocatalyst

Domingo-Torner, Carlos; García Gabaldón, Montserrat; Martí Calatayud, Manuel César; Mestre, S.; Pérez-Herranz, Valentín (Elsevier, 2023-02)

[EN] Advanced Oxidation Processes have been proven to be an efficient way to remove organic pollutants from wastewaters. In this work, a ceramic electrode of Sb-SnO2 (BCE) with a layer of the photocatalytic material BiFeO3 ...
Novel Sb-doped SnO2 ceramic anode coated with a photoactive BiPO4 layer for the photoelectrochemical degradation of an emerging pollutant

Balseviciute, Adele; Martí Calatayud, Manuel César; Pérez-Herranz, Valentín; Mestre, S.; García Gabaldón, Montserrat (Elsevier, 2023-09)

[EN] In the present work, a study about the electrochemical and photoelectrochemical degradation of an emerging pollutant using an Sb-doped SnO2 anode coated with a photocatalytic layer of BiPO4 has been performed. The ...
Perovskite Nanocomposite: A Step Toward Photocatalytic Degradation of Organic Dyes

Minguez-Avellan, Miriam; Farinós-Navajas, Noemí; Noguera-Gómez, Jaume; Sagra Rodríguez,Victor; Vallés-Pelarda, Marta; Momblona, Cristina; Ripolles, Teresa S.; Boix, Pablo P.; Abargues, Rafael (John Wiley & Sons, 2024-08)

[EN] Metal halide perovskites offer a promising opportunity for transforming solar energy into chemical energy, thereby addressing pressing environmental challenges. While their excellent optoelectronic properties have ...
Propiedades optoelectrónicas en perovskitas halogenadas y su aplicación en energía y sensores

García Aboal, Rocío (Universitat Politècnica de València, 2021-10-22)

[ES] La creciente urbanización e industrialización de las sociedades en las últimas décadas han provocado una alta demanda de energía. No obstante, mientras no se desarrollen fuentes de energía renovables que se constituyan ...
Silver Nanoparticles Supported on Diamond Nanoparticles as a Highly Efficient Photocatalyst for the Fenton Reaction under Natural Sunlight Irradiation

Espinosa López, Juan Carlos; Navalón Oltra, Sergio; Alvaro Rodríguez, Maria Mercedes; García Gómez, Hermenegildo (Wiley, 2015-09-01)

Diamond nanoparticles (NPs) purified conveniently by Fenton oxidn. and modified by a subsequent H2 annealing redn. (D3) are an adequate support for small Ag NPs that are highly active as a (photo-)Fenton ...
Study of the annealing conditions and photoelectrochemical characterization of a new iron oxide bi-layered nanostructure for water splitting

Lucas-Granados, Bianca; Sánchez Tovar, Rita; Fernández Domene, Ramón Manuel; Garcia-Anton, Jose (Elsevier, 2016-08)

Iron oxide nanostructures have emerged as promising materials for being used as photocatalysts for hydrogen production due to their advantageous properties. However, their low carrier mobility and short hole diffusion ...
Utilización de nitruros de carbono grafíticos como fotocatalizador para la eliminación de contaminantes emergentes

López Timoner, Rubén (Universitat Politècnica de València, 2023-07-24)

[ES] El presente TFM tiene como objetivo estudiar el comportamiento de diversos fotocatalizadores basados en nitruros de carbono grafítico provenientes de dos fuentes diferentes de nitrógeno, una de ellas es la urea y ...