Abstract
Lanthanum- and nitrogen-codoped TiO2 photocatalysts was synthesized using orthorhombic nanotubes titanic acid as the precursor by a simple impregnation and subsequent calcination method. The morphology, phase structure, and properties of La- and N-codoped TiO2 were well characterized by transmission electron microscopy, X-ray diffraction, Raman spectra, X-ray photoelectron spectroscopy, and UV–Vis diffuse reflectance spectra. The La-/N-codoped TiO2 showed excellent photoactivity of propylene oxidation compared with the single-doped TiO2 and La-/N-codoped P25 TiO2 nanoparticles under visible light irradiation. The origin of the enhancement of the visible light-responsive photocatalytic activity was discussed in detail.
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Acknowledgments
The authors gratefully acknowledge the support of the National Natural Science Foundation of China (Nos. 21103042, 21471047, 21203054), Program for Science & Technology Innovation Talents in Universities of Henan Province (No. 15HASTIT043), and Program for Changjiang Scholars and Innovation Research Team in University (No. PCS IRT1126).
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Liu, J., Li, H., Zong, L. et al. Photocatalytic oxidation of propylene on La and N codoped TiO2 nanoparticles. J Nanopart Res 17, 114 (2015). https://doi.org/10.1007/s11051-015-2916-6
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DOI: https://doi.org/10.1007/s11051-015-2916-6