Photoelectrocatalytic degradation of methyl red dye using Au doped TiO<sub>2</sub>photocatalyst

Hernández, Rafael; Elizalde, E.; Domínguez, Adrian Sosa; Olvera-Rodriguez, I.; Esquivel, Karen; Guzmán, C.

doi:10.1109/coniin.2016.7498122

Cited by 1 publication

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“…In similar degradation conditions but with another organic dye, methyl orange (similar structure), our nanostructure also provided better results [ 75 ]. Compared with other metal oxides such as TiO 2 doped with Au, the WO 3 nanostructures fabricated in the presence of EMIM and BMIM exhibit better degradation yields in less time, although in that study, two ultraviolet lamps were used during the degradation tests [ 76 ].…”

Section: Resultsmentioning

confidence: 99%

Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications

Da Silva,

Sánchez-García,

Pérez-Calvo

et al. 2024

Materials

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This research examines the influence of adding a commercial ionic liquid to the electrolyte during the electrochemical anodization of tungsten for the fabrication of WO3 nanostructures for photoelectrochemical applications. An aqueous electrolyte composed of 1.5 M methanesulfonic acid and 5% v/v [BMIM][BF4] or [EMIM][BF4] was used. A nanostructure synthesized in an ionic-liquid-free electrolyte was taken as a reference. Morphological and structural studies of the nanostructures were performed via field emission scanning electron microscopy and X-ray diffraction analyses. Electrochemical characterization was carried out using electrochemical impedance spectroscopy and a Mott–Schottky analysis. From the results, it is highlighted that, by adding either of the two ionic liquids to the electrolyte, well-defined WO3 nanoplates with improved morphological, structural, and electrochemical properties are obtained compared to samples synthesized without ionic liquid. In order to evaluate their photoelectrocatalytic performance, the samples were used as photocatalysts to generate hydrogen by splitting water molecules and in the photoelectrochemical degradation of methyl red dye. In both applications, the nanostructures synthesized with the addition of either of the ionic liquids showed a better performance. These findings confirm the suitability of ionic liquids, such as [BMIM][BF4] and [EMIM][BF4], for the synthesis of highly efficient photoelectrocatalysts via electrochemical anodization.

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Section: Resultsmentioning

confidence: 99%

Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications

Da Silva,

Sánchez-García,

Pérez-Calvo

et al. 2024

Materials

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Photoelectrocatalytic degradation of methyl red dye using Au doped TiO₂photocatalyst

Cited by 1 publication

References 20 publications

Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications

Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications

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Photoelectrocatalytic degradation of methyl red dye using Au doped TiO2photocatalyst

Cited by 1 publication

References 20 publications

Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications

Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications

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Photoelectrocatalytic degradation of methyl red dye using Au doped TiO₂photocatalyst