Exploració per tema "Fotocatàlisi"
Ara es mostren els items 21-40 de 63
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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)
Projecte Final de Màster Oficial
Accés obertEl 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)
Treball Final de Grau
Accés obertL'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 ... -
Exploiting metallophilicity for the assembly of inorganic nanocrystals and conjugated organic molecules
(2016-07-18)
Article
Accés obertThe accurate engineering of interfaces between inorganic nanocrystals and semiconducting organic molecules is currently viewed as key for further developments in critical fields such as photovoltaics and photocatalysis. ... -
Fabrication of c-Si microstructures through reorganization at high temperatures
(Universitat Politècnica de Catalunya, 2015-06)
Treball Final de Grau
Accés obertSilicon photonics has gained increasing interest in recent years as it promises high performance, cost-effective integrated optical devices. The advent of Si fabrication techniques at the micro and nano-scales, in conjunction ... -
Facile fabrication of hybrid titanium(IV) isopropoxide/pozzolan nanosheets (TnS-Pz) of high photocatalytic activity: characterization and application for Cr(VI) reduction in an aqueous solution
(2020-05-30)
Article
Accés obertThis paper presents the synthesis of a hybrid material through the use of natural pozzolan and titanium(IV) isopropoxide using the sol-gel method and its application in the photocatalytic hexavalent chromium reduction. The ... -
Fotocatalizador M/TiO2 con control morfológico para la eliminación de compuestos orgánicos volátiles
(Universitat Politècnica de Catalunya, 2019-06-11)
Projecte Final de Màster Oficial
Accés obertEls compostos orgànics volàtils constitueixen un problema ambiental i una amenaça per a la salut. Una manera d'eliminar-los de manera efectiva i amb cost baix és amb fotocatalitzadors capaços d'oxidar-los amb llum solar i ... -
Hydrogen photochemical production in a microreactor with Au/TiO2 nanoparticles
(Universitat Politècnica de Catalunya, 2015-06-30)
Treball Final de Grau
Accés obertThe major aim of this bachelor’s thesis is the production of hydrogen (H2) from mixtures containing water (H2O) & ethanol (EtOH) by means of a photocatalytic process using Au/TiO2 nanoparticles. The reaction was carried ... -
Hydrogen photogeneration using ternary CuGaS2-TiO2-Pt nanocomposites
(2020-01-13)
Article
Accés obertIn this contribution we synthesized ternary CuGaS2-TiO2-Pt materials. The semiconductor components were surface functionalized with mercapto-alifatic acids to drive their linking and were platinized prior to or after contact ... -
Hydrogen photoproduction on TiO2-reduced graphene oxide hybrid materials from water-ethanol mixture
(2021-09-01)
Article
Accés obertTitanium dioxide mixed with reduced graphene oxide (rGO) has been tested in the photoproduction of hydrogen using UV light from water-ethanol combination in gas phase. The presence of the reduced graphene oxide in TiO2/rGO ... -
Hydrogen production with photocatalysts prepared by mechanochemical methods
(Universitat Politècnica de Catalunya, 2020-07-09)
Projecte Final de Màster Oficial
Accés obertThe objective of this thesis is to study the hydrogen production according to the preparation of photocatalysts with mechanochemical methods from semiconductors such as titanium dioxide. The preparation of the photocatalysts ... -
In situ decolorization monitoring of textile dyes for an optimized UV-LED/TiO2 reactor
(2019-08-01)
Article
Accés obertHeterogeneous photocatalysis, using photocatalysts in suspension to eliminate diverse contaminants, including textile wastewater, has several advantages. Nevertheless, current absorbance and decolorization measurements ... -
Influence of Pt particle size and reaction phase on the photocatalytic performances of ultradispersed Pt/TiO2 catalysts for hydrogen evolution
(2019-07-01)
Article
Accés obertPt/TiO2 photocatalysts were prepared by incipient wetness impregnation followed by oxidative and/or reductive thermal treatments. By varying the TiO2 form (commercial P25 and P90, and homemade shape-controlled), the Pt ... -
Influence of SnO2 layer and thickness of BiVO4 photoanodes for photoelectrochemical water splitting
(Universitat Politècnica de Catalunya, 2022-09-06)
Projecte Final de Màster Oficial
Accés obert
Realitzat a/amb: Institut de Ciències Fotòniques (ICFO)Bismuth vanadate has attracted much attention as one of the most promising materials for photoelectrochemical (PEC) water splitting. This Master Thesis is aimed at understanding BiVO4 films growth to use it as photoanodes. ... -
Investigation of the photocatalytic activity of laser patterned titanium
(Universitat Politècnica de Catalunya, 2021-10-31)
Projecte Final de Màster Oficial
Accés restringit per decisió de l'autorThe capacity of direct laser interference patterning (DLIP)to generate periodic surface structures has demonstrated advantages to other structuring techniques such as the large diversity of materials and geometries ... -
Life cycle analysis of a combined process of photocatalysis with TiO2 and adsorption with PAC o a pilot plant for the degradation of antibiotics
(OmniaScience, 2021-03)
Text en actes de congrés
Accés obert -
Macroporous silicon coated with M/TiO2 (M=Au,Pt) as a highly efficient photoreactor for hydrogen production
(2020-03-07)
Article
Accés obertMacroporous silicon disks containing ordered channels of 2 µm side and 0.2 mm length (9 × 106 channels cm-2) have been functionalized with a thin layer of Au/TiO2 and Pt/TiO2 photocatalysts and tested in the photoproduction ... -
Methodology for lighting optimization applied to photocatalytic reactors
(Institute of Electrical and Electronics Engineers (IEEE), 2019)
Comunicació de congrés
Accés obertReplacement of conventional UV-lamps used in photocatalytic reactors by UV-LED sources with lower energy consumption and larger versatility has been proposed recently; However, the implementation of these types of sources ... -
Nature and properties of pure and Nb-Doped TiO2 ceramic membranes affecting the photocatalytic degradation of 3-Chlorosalicylic acid as a model of halogenated organic compounds
(1992)
Article
Accés restringit per política de l'editorial -
Obtenció d'hidrogen a partir d'aigua i etanol amb fotocatalitza dors Au-M/TiO2
(Universitat Politècnica de Catalunya, 2014-10-15)
Projecte Final de Màster Oficial
Accés obert -
Operando X-ray absorption spectroscopy investigation of photocatalytic hydrogen evolution over ultradispersed Pt/TiO2 catalysts
(2020-11-06)
Article
Accés obertPhotocatalytic hydrogen generation from water or oxygenates is foreseen as a sustainable energy production route. In spite of recent performance achievements through Pt particle downsizing, knowledge of the prototypical ...