Journal
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
Volume 9, Issue -, Pages 2628-2643Publisher
BEILSTEIN-INSTITUT
DOI: 10.3762/bjnano.9.244
Keywords
fluorine doping; nanotubes; photocatalytic activity; photoelectrochemistry; titanium(IV) oxide (TiO2)
Funding
- Mexican Council for Science and Technology CONACyT through Fondo Sectorial CONACYT-SENER-Sustentabilidad Energetica [246079]
- CONACYT [242857]
- University of Poitiers
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Titanium oxide nanotubes (TNTs) were anodically grown in ethylene glycol electrolyte. The influence of the anodization time on their physicochemical and photoelectrochemical properties was evaluated. Concomitant with the anodization time, the NT length, fluorine content, and capacitance of the space charge region increased, affecting the opto-electronic properties (bandgap, bathochromic shift, band-edge position) and surface hydrophilicity of TiO2 NTs. These properties are at the origin of the photocatalytic activity (PCA), as proved with the photooxidation of methylene blue.
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