N-doped TiO2 nanoparticles obtained by a facile coprecipitation method at low temperature

N-doped TiO2 nanoparticles (NPs) were synthesized using a facile synthesis route by coprecipitation method. The effect of the HNO3 volume and calcination temperature on the structural, morphological, optical and surface properties of the N-doped TiO2 NPs was studied. X-ray diffraction analysis showe...

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Bibliographic Details
Published in:Ceramics international Vol. 44; no. 5; pp. 5273 - 5283
Main Authors: Sanchez-Martinez, A., Ceballos-Sanchez, O., Koop-Santa, C., López-Mena, Edgar R., Orozco-Guareño, E., García-Guaderrama, M.
Format: Journal Article
Language:English
Published: Elsevier Ltd 01-04-2018
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Summary:N-doped TiO2 nanoparticles (NPs) were synthesized using a facile synthesis route by coprecipitation method. The effect of the HNO3 volume and calcination temperature on the structural, morphological, optical and surface properties of the N-doped TiO2 NPs was studied. X-ray diffraction analysis showed particles of nanometric size (< 16nm), which are consistent with HR-TEM micrographs. A slight shift of the absorption edge to higher wavelengths is observed as the HNO3 volume and calcination temperature increases. Both X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FT-IR) show the presence and stability of nitrogen in the N-doped TiO2 structure. The photocatalytic activity of the N-doped TiO2 NPs was assessed by testing the degradation of rhodamine B (RhB) under ultraviolet (UV) and visible light.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2017.12.140