Bismuth Tungstate Preparation by Solid Phase Method
Bismuth tungstate is a new photocatalyst developed in recent years. It has the characteristics of narrow band gap, good catalytic performance, stable photocatalytic and environmental protection, and has become a new hot spot in the field of photocatalyst. The preparation methods of bismuth tungstate mainly include solid phase method and liquid phase method. In general, they are fire process and wet process. Solid phase method is the preparation of bismuth tungstate by sintering at high temperature, compared with the liquid phase method, the solid phase method is more adopted by enterprises. Because most of the smelting enterprises adopt solid phase method to obtain tungsten powder, calcination equipment can be used in conjunction with each other, and the equipment foundation is the reason why solid phase method is more popular. The synthesis principle of bismuth tungstate solid phase method is mechanical processing containing Bi and W elements in the oxide material or its...