Abstract
Bi-doped TiO 2 nanofibers with different Bi content were firstly prepared by an electrospinning method. The as-prepared nanofibers were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), photoluminescence spectra (PL), and UV–vis diffuse reflectance spectroscopy (DRS). The results indicated that Bi 3+ ions were successfully incorporated into TiO 2 and extended the absorption of TiO 2 into visible light region. The photocatalytic experiments showed that Bi-doped TiO 2 nanofibers exhibited higher activities than sole TiO 2 in the degradation of rhodamine B (RhB) and phenol under visible light irradiation ( λ > 420 nm), and 3% Bi:TiO 2 samples showed the highest photocatalytic activities.
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