| abstract |
The invention discloses a method for preparing a potassium niobate/α-iron oxide heterogeneous photocatalyst. First, KNbO 3 is prepared; then KNbO 3 powder is added to an aqueous solution of FeCl 3 ·6H 2 O and Na 2 SO 4 , And add glacial acetic acid, stir evenly, add to the reaction kettle, undergo hydrothermal reaction, after cooling, the reaction product is washed and dried, and finally calcined to obtain KNbO 3 /α-Fe 2 O 3 heterogeneous photocatalyst. The preparation process of the invention is simple, the reaction temperature is low, the reaction time is short, the material cost is low, and it is suitable for industrial production. The carrier separation efficiency is high, and it has excellent photocatalytic degradation performance of dyes. |