Browsing by Subject "Fotocatàlisi"
Now showing items 1-20 of 60
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3D printing of TiO2 photocatalysts for hydrogen production
(Universitat Politècnica de Catalunya, 2019-06)
Bachelor thesis
Open AccessThis project consists in the production of pure hydrogen through a photocatalytic process. A series of models of different shapes and sizes have been printed using a 3D printer, which were made up of Pt / TiO2. The objective ... -
A direct Z-scheme for the photocatalytic hydrogen production from a water ethanol mixture on CoTiO3/TiO2 heterostructures
(2021-01-01)
Article
Open AccessPhotocatalytic H2 evolution from ethanol dehydrogenation is a convenient strategy to store solar energy in a highly valuable fuel with potential zero net CO2 balance. Herein, we report on the synthesis of CoTiO3/TiO2 ... -
A kinetic study for the fenton and photo-fenton paracetamol degradation in a pilot plant reactor
(2017)
Article
Restricted access - publisher's policyThe present study aims at proposing a kinetic model that can capture the complexity and non - linear nature of the Fenton and photo - Fenton processes in the degradation of a model pollutant . Moreover, t he pro posed model ... -
A SnS2 molecular precursor for conformal nanostructured coatings
(American Chemical Society (ACS), 2020-02-11)
Article
Open AccessWe present a simple, versatile, and scalable procedure to produce SnS2 nanostructured layers based on an amine/thiol-based molecular ink. The ratios amine/thiol and Sn/S, and the reaction conditions, are systematically ... -
A straightforward method to prepare supported Au clusters by mechanochemistry and its application in photocatalysis
(Elsevier, 2020-12)
Article
Open AccessReducing the metal particle size on semiconductor-based materials from a few nanometers down to well-dispersed clusters or single atoms has been demonstrated to be an effective strategy to enhance the photocatalytic ... -
Análisis del ciclo de vida de un proceso combinado de fotocatálisis on TiO2 y adsorción con PAC de una planta piloto para la degradación de antibióticos
(OmniaScience, 2021-03)
Conference report
Open Access -
Aplicabilidad de la producción catalítica de hidrógeno a partir de las aguas residuales en la industria de zumos de naranja
(Universitat Politècnica de Catalunya, 2020-07-22)
Master thesis
Open AccessLas aguas residuales procedentes de la industria de Zumos presentan una alta carga contaminante, debido al alto contenido de materia orgánica, sólidos en suspensión y variación de su pH, lo que hace viable y recomendable ... -
Au/TiO2 2D-photonic crystals as UV–visible photocatalysts for H2 production
(2022-02-10)
Article
Open AccessNoble metal decoration of wideband gap semiconductors enables the excitation of surface plasmons in the visible range that upon relaxation generate hot carriers used for catalysis. However, this strategy leads to photocatalytic ... -
Caracterització i optimització d’un tractament antibacterià de la superfície de titani
(Universitat Politècnica de Catalunya, 2020-11-25)
Bachelor thesis
Open AccessTot i que cada cop s’aconsegueixen reduir més i més els riscs associats als agents bacterians dins d’un quiròfan, la infecció de l’instrumental i/o dels equips que intervenen en aquest podria ser crítica per la persona que ... -
Comparison of TiO2 powder suspensions and TiO2 ceramic membranes supported on glass as photocatalytic systems in the reduction of chromium (VI)
(1992)
Article
Restricted access - publisher's policy -
Comprehensive study of all-solid-state Z-scheme photocatalytic systems of ZnO/Pt/CdZnS
(American Chemical Society (ACS), 2017-08-22)
Article
Open AccessWe have investigated a Z-scheme based on a ZnO/Pt/CdZnS photocatalyst, active in the presence of a complex medium composed of acetic acid and benzyl alcohol, the effects of which on the catalyst stability and performance ... -
Diseño de un reactor solar fotocatalítico para la producción de hidrógeno
(Universitat Politècnica de Catalunya, 2016-09-05)
Master thesis
Open AccessActualmente se está trabajando con microreactores que aprovechan la radiación solar ultravioleta para la producción de hidrógeno y para ello disponen de un catalizador semiconductor. Experimentalmente se ha demostrado que ... -
Disseny d'una planta basada en electrolitzadors PEM i fotocatàlisi per a l'obtenció d'hidrogen a partir d'aigua
(Universitat Politècnica de Catalunya, 2022-07-19)
Bachelor thesis
Restricted access - author's decisionEn el present treball s’ha dissenyat una planta per produir hidrogen a partir d’aigua mitjançant un reactor híbrid format per tres electrolitzadors PEM en sèrie i un reactor fotocatalític. En el disseny, també s’ha inclòs ... -
Effect of Ce and Mn co-doping on photocatalytic performance of sol-gel TiO2
(2019-02-01)
Article
Open AccessCo-doped titanium dioxide was synthesized by doping with manganese (Mn) and cerium (Ce) through a sol-gel method for the degradation of diclofenac (DCF). The synthesized products were successfully characterized by X-ray ... -
Effect of TiO 2 nanoshape on the photoproduction of hydrogen from water-ethanol mixtures over Au 3 Cu/TiO 2 prepared with preformed Au-Cu alloy nanoparticles
(2019-07-05)
Article
Open AccessA series of TiO2 nanoshapes (microurchins, nanobelts, nanowires, microrods and nanotubes) were prepared and decorated with preformed nanoparticles of Au-Cu alloy (Au:Cu¿=¿3:1 molar, 1¿wt.% metal content). The resulting ... -
Efficiency of new photocatalytic materials under UV and visible light, and towards various chemical compounds
(Universitat Politècnica de Catalunya / École Nationale Supérieure de Chimie de Rennes, 2008)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Eliminación fotocatalítica de fármacos en aguas
(Universitat Politècnica de Catalunya, 2018-06-14)
Master thesis
Open AccessEn el tratamiento de aguas persiste el problema de la permanencia de fármacos. Una manera de eliminarlos es mediante el uso de fotocatalizadores. En este trabajo se trata de evaluar el comportamiento de distintos ... -
Enhancing hydrogen generation in photocatalysis systems by the use of selective contacts
(Universitat Politècnica de Catalunya, 2022-06)
Bachelor thesis
Open AccessHydrogen stands as a good energy vector to replace fossil fuels due to its high energy density and green production. Moreover, hydrogen can be used to complement other green energy sources. One of the most craved methods ... -
Estudio del uso de la fotocatálisis para la degradación de materia orgánica y obtención de H2 de aguas residuales.
(Universitat Politècnica de Catalunya, 2016-04-15)
Master thesis
Open AccessEl presente proyecto pretende evaluar la compatibilidad de obtención de hidrógeno con la depuración de aguas residuales mediante la fotocatálisis heterogénea con catalizadores basados en TiO2 y nanopartículas de ... -
Evaluación de la durabilidad de los elementos fotocatalíticos micro/nano-estructurados sobre superficies de mortero
(Universitat Politècnica de Catalunya, 2016-06)
Bachelor thesis
Open AccessL'ús de materials fotocatalítics en superfícies construïdes resulta atractiu pot ajudar molt significativament a la millora de la qualitat de l'aire en les ciutats. Amb la finalitat d'avançar en la consecució d'una aplicació ...
