Gas-phase ethanol photocatalytic degradation study with TiO2 doped with Fe, Pd and Cu

Araña, J.; Doña-Rodrı́guez, J.M.; Díaz, O. González; Rendón, E. Tello; Melián, J.A. Herrera; Colón, G.; Navı́o, J.A.; Peña, J. Pérez

doi:10.1016/j.molcata.2004.01.020

Cited by 112 publications

(48 citation statements)

References 36 publications

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“…The effect of the doping agent in the degradation efficiency is not evident. Positive effect of additives in the decomposition of different organic compounds has been published [2][3][4][5][6][7][8][9], but opposite results have been also reported [1,7,9]. This miscellaneous behaviour can be explained by the difference in the morphology, crystal structure, specific surface area and the surface density of the OH groups of the studied TiO 2 catalysts, due to the various preparation methods applied in their synthesis [22].…”

Section: Introductionmentioning

confidence: 94%

“…photosensitization) resulting in enhanced photocatalytic activity is one of the most important aspects of heterogeneous photocatalysis. Deposition of different metals (like Pt, Pd, Au, Ag, Fe, Nb and Cu) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] or oxides such as WO 3 [17] onto titanium dioxide has been widely used as a technique to extend the light absorption to the visible region.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic activity of silver-modified titanium dioxide at solid–liquid and solid–gas interfaces

Kőrösi

Papp

Ménesi

et al. 2008

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Silver-modified titania samples (Ag-TiO 2 ) with varying silver content (0.1-1.0 wt%) were prepared. Silver-modification of titanium dioxide was examined by TEM, XRD, XPS and DR-UV-vis spectroscopy. Ag or AgO x particles on TiO 2 surface could not be observed by XRD and TEM investigation, however the color of the Ag-TiO 2 samples varied between light rose and purple-brown. XPS measurements revealed that silver exists mainly in oxide form. The photocatalytic activity of pure and Ag-TiO 2 samples were compared both in solid-liquid and in solid-gas interfaces. In the liquid phase the 2,2 -thiodiethanol was used as test molecule. Ethanol photodegradation was examined in gas phase at dry initial condition. It was shown that the rate of photooxidation of organic compounds significantly enhanced by silver-modification of titania.

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Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Photocatalytic activity of silver-modified titanium dioxide at solid–liquid and solid–gas interfaces

Kőrösi

Papp

Ménesi

et al. 2008

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…Numerous photocatalytic studies have been performed using Cu as TiO 2 dopant [18][19][20][21][22][23][24]. Thus, it has been indicated that Cu(II) may extend the light absorption to visible region [18], modify the TiO 2 valence band spectrum [20] and improve photocatalytic activity [19,[21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, it has been indicated that Cu(II) may extend the light absorption to visible region [18], modify the TiO 2 valence band spectrum [20] and improve photocatalytic activity [19,[21][22][23]. In this paper the effect of doping TiO 2 with Cu on the photodegradation of dihydroxybenzenes (hydroquinone, catechol and resorcinol) has been investigated.…”

Section: Introductionmentioning

confidence: 99%

Role of Cu in the Cu-TiO2 photocatalytic degradation of dihydroxybenzenes

Araña¹,

Fernández-Rodríguez²,

Díaz³

et al. 2005

Catalysis Today

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“…The Nafion suspension used to prepare SEA contained residual ethanol solvent. EtOH is a known hole scavenger and readily oxidizes on TiO 2 surfaces to form acetaldehyde (Araña et al, 2004).…”

Section: Upscaling Of Monolithic Assemblies and Experimental Pec Cellsmentioning

confidence: 99%

Design of Compact Photoelectrochemical Cells for Water Splitting

Bosserez

Rongé

Humbeeck

et al. 2015

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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-Solar driven water splitting can be achieved by coupling electrolyzers with PhotoVoltaics (PV). Integration of both functions in a compact PhotoElectroChemical (PEC) cell is an attractive option but presents significant scientific challenges. In this work, the design of single-and dualcompartment PEC cells for research purposes is discussed. The fabrication of separator-electrode assemblies is an important aspect, and upscaling of these architectures even to centimeter scale is not trivial. The layout of a new dual-compartment compact PEC cell with in-situ monitoring of pH, temperatures, and oxygen and hydrogen evolution for research purposes is presented. Finally, a prospect of future PEC cells for practical applications is presented.Résumé -Conception de cellules photoélectrochimiques compactes pour la décomposition de l'eau -La décomposition de l'eau en utilisant la lumière du soleil s'effectue par couplage d'un électrolyseur aux cellules PhotoVoltaïques (PV). L'intégration des deux fonctions dans une seule cellule PhotoElectroChimique (PEC) compacte est envisagée, mais présente un très grand défi scientifique. Cet article traite la conception des cellules PEC de recherche avec ou sans compartimentation. L'assemblage de séparateurs et d'électrodes est un aspect important, et la fabrication de ces architectures, même à l'échelle centimétrique et n'est pas évidente. La disposition d'une nouvelle cellule compacte PEC à deux compartiments permettant de contrôler in situ l'évolution du pH, de la température, et les concentrations d'oxygène et d'hydrogène est présentée. Enfin, une perspective de futures cellules PEC pour des applications pratiques est présentée.

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Gas-phase ethanol photocatalytic degradation study with TiO2 doped with Fe, Pd and Cu

Cited by 112 publications

References 36 publications

Photocatalytic activity of silver-modified titanium dioxide at solid–liquid and solid–gas interfaces

Photocatalytic activity of silver-modified titanium dioxide at solid–liquid and solid–gas interfaces

Role of Cu in the Cu-TiO2 photocatalytic degradation of dihydroxybenzenes

Design of Compact Photoelectrochemical Cells for Water Splitting

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