Synthesis and characterization of Bi(VO4)1−m(PO4)m nanofibers by electrospinning process with enhanced photocatalytic activity under visible light

Abstract

Bi(VO₄)_1−m(PO₄)_m nanofibers were prepared by effective structural doping through an electrospinning method with subsequent calcination. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM), UV-vis absorbance spectroscopy, electrochemical impedance spectra (EIS), Mott–Schottky analysis, and photoluminescence (PL) spectroscopy. The diameter of the as-prepared fibers was about 200–400 nm. We found that the 0.5% P(molar ratio)-doped BiVO₄ samples exhibited better photocatalytic activity for methylene blue (MB) than monoclinic BiVO₄.