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Journal of Nanoparticle Research
Erschienen in: Journal of Nanoparticle Research 8/2014

01.08.2014 | Research Paper

Structural and photoelectrochemical properties of porous TiO2 nanofibers decorated with Fe2O3 by sol-flame

verfasst von: N. Sobti, A. Bensouici, F. Coloma, C. Untiedt, S. Achour

Erschienen in: Journal of Nanoparticle Research | Ausgabe 8/2014

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Abstract

The hybrid structure of Fe2O3 nanoparticles/TiO2 nanofibers (NFs), combines the merits of large surface areas of TiO2 NFs and absorption in ultraviolet light–visible light range. This structure can be used for many applications such as photoelectrochemical water splitting and photo-catalysis. Here, a sol-flame method is used for depositing Fe2O3 on TiO2 NFs that were prepared by hydrothermal on Ti sheets. The obtained materials were characterized by XRD, SEM, UV/Vis diffuse reflectance, Raman, and XPS. The results revealed the formation of rutile and anatase crystalline phases together with Fe2O3. This process moves the absorption threshold of TiO2 NFs support into visible spectrum range and enhances the photocurrent in comparison to bare TiO2 NFs, although no hole scavenger was used. The impedance measurement at low and high frequencies revealed an increase in series resistance and a decrease in resistance of charge transfer with sol-flame treatment time. A mechanism for explaining the charge transfer in these TiO2 NFs decorated with Fe2O3 nanoparticles was proposed.
Vorheriger Artikel Comparison of the electronic transport properties of metallic graphene and silicene nanoribbons
Nächster Artikel Synthesis of iron oxide/manganese oxide composite particles and their magnetic properties

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Metadaten
Titel
Structural and photoelectrochemical properties of porous TiO2 nanofibers decorated with Fe2O3 by sol-flame
verfasst von
N. Sobti
A. Bensouici
F. Coloma
C. Untiedt
S. Achour
Publikationsdatum
01.08.2014
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 8/2014
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-014-2577-x

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