Abstract
One-dimensional (1D) α-Fe2O3/Bi2MoO6 heterostructures have been prepared by the electrospinning in combination with the calcination process. The length of α-Fe2O3/Bi2MoO6 heterostructures calcined at 500 °C for 2 h was up to several millimeters, and the diameter was approximately 100–150 nm. The as-prepared samples were characterized by thermogravimetric and differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and UV–vis diffuse reflectance spectrum (UV–vis DRS). The photocatalytic degradation tests reveal that the obtained α-Fe2O3/Bi2MoO6 heterostructures exhibit the higher degradation rate of methylene blue (MB) than the pure Bi2MoO6 nanofibers and TiO2 (Degussa P25) under the simulated sunlight irradiation. The construction of α-Fe2O3/Bi2MoO6 heterostructures can effectively impede the recombination of photoelectrons and holes and the possible photocatalytic mechanism has also been discussed in details.
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