| TiO2/Fe2O3 nanofibers were prepared from poly vinyl pyrrolidone (PVP)/ Ti(OiPr)4/ FeCl3composite were formed as a result of combining the sol–gel process with electrospinning technique. These nanofibers could be subsequently converted into TiO2/Fe2O3 without changing their morphology via calcination in air.The morphology of fibers was discussed by adjusting conditions such as the concentration of PVP, the capillary screen distance, the voltage, and the velocity of calcination. As a result, with increasing the concentration of PVP, the diameter of electrospun fibers increased and the morphology changed from beads to regular and then unregular. Increasing the concentration of ethanol decreased the surface tension and increased the viscosity of solution. Increasing the concentration of inorgnic salts made the diameter of fibers increased and increasing the electrospinning voltage decreased the diameter of the fibers. The fibers ruptured when the temperature raised quickly, then the velocity should be controled below 40oC/h.The structures and physicochemical properties of the composites were characterized by powder X-ray diffraction (XRD), Raman scattering studies(Raman),UV diffuse reflectance spectroscopy (UV/DRS), field emission scanning electron microscopy(SEM). All the results show that five kinds of favorite nanofibers with smooth surface, homogeneous diameters of 50-150nm and uniform morphology were obtained.The photocatalytic efficiencies of the products were assessed by monitoring the photodegradation of rhodamine B(RB). The photocatalytic reactions confirmed that the presence of the second metal oxide in the titania framework resulted in enhanced photocatalytic activity relative to the pure titania framework, and the reasons were discussed.
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