Highly efficient photocatalytic activity in the visible region in hydrothermally synthesized N-doped TiO2

Maja Lešnik


Nanocrystalline rutile titanium dioxide (TiO2) samples doped with various amounts of nitrogen (N) atoms were prepared using a hydrothermal synthesis route and a polycrystalline TiO2 precursor. The doped rutile nanocrystallites were analysed with transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV–Vis spectroscopy. The Kubelka–Munk band-gap calculation were used to examine the UV–Vis reflectance spectra. The measurements of the photocatalytic activity were performed utilizing FT-IR A remarkable increase in the photocatalytic activity of the doped rutile nanocrystallites was detected when applying the isopropanol degradation method with UV–Vis light irradiation.


Nanoparticles; TiO2; Rutile; Visible photocatalyst

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