Abstract
Pt/N-codoped TiO 2 nanotubes were prepared and characterized by various analytical methods, such as transmission electron microscope (TEM), diffuse reflection spectra (DRS), X-ray powder diffraction (XRD), X-ray photoelectron emission spectroscopy (XPS) and fluorescence spectra (FL). The photocatalytic efficiency was evaluated by the photodegradation of Rhodamine B (RB) in an aqueous solution under visible light irradiation. It has been confirmed that Pt/N-codoped TiO 2 nanotubes could be excited by visible light and the recombination rate of electron–hole pairs declined significantly. The higher visible light activity is due to the codoping of nitrogen and platinum.
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