Preparation and Photocatalytic Performance of WO3-TiO2-CNFs Nanocomposites with Hierarchical Structure
By loading TiO2 and WO3 on the surface of carbon nanofibers using hydrothermal method,WO3-TiO2-CNFs ternary composite materials with high exposure ratio,excellent photocatalytic performance,and easy recovery were successfully prepared.The effect of WO3 addition on photocatalytic performance was studied.The catalyst was characterized by SEM,TEM,XRD,BET,and UV vis methods,and its photocatalytic performance was investigated by degrading methylene blue(MB)solution.The results showed that the optimal composite molar percentage of WO3 and TiO2 is 4％.After 90 minutes of simulated solar irradiation,the degradation rate of 15 mg/L MB solution was 97.4％,and after 5 repeated uses,the degradation rate of MB solution remained at 93.6％.
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