Synthesis and Properties of Visible-light Photocatalytic Bi2WO6 via Microemulsion- assisted Hydrothermal Method

The novel Bi2WO6 and Fe3+/Bi2WO6 photocatalysts were fabricated separately via a reverse microemulsion method. The effect factors including synthesis temperature, pH value, molar ratio of water to surfactant (ω) and Fe3+ doping on the structure, morphologies and photocatalysis performance of photocatalysts were studied in detail. These results show that Bi2WO6 possesses a high degree of crystallinity of nano-spherical structure with the size of 15–25 nm. The photodegradation rate of methylene blue (MB) is 93.8% as the Bi2WO6 photocatalyst was synthesized at 150 The results reveal that the photodegradation rate of MB reaches 97.8% as ω is 27. It’s found that the photodegradation rate of MB for 1.03% Fe-doped Bi2WO6 sample has increased to 90.2%, which is two times higher than that of pure Bi2WO6.