Photocatalytic technology is a technology that uses light energy as energy to realize catalysis. The photocatalytic properties of tungstate have been confirmed by many researches. However, in terms of catalytic efficiency, zinc tungstate, bismuth tungstate and cadmium tungstate are reported more, while silver tungstate is relatively few. This is because the photocatalytic properties of silver tungstate are also worthy of improvement.

Nanocrystalline cemented carbide has excellent properties such as high strength, high toughness, high hardness, good wear resistance and heat resistance, which is difficult to be produced by conventional materials. Nano tungsten powder is the key raw material to prepare nano cemented carbide.

Studies have shown that tungsten can effectively reduce the phase transition temperature of vanadium dioxide, copper can enhance the conductivity of vanadium dioxide.

Bismuth tungstate is a star product in the field of photocatalyst. Because of its narrow forbidden band width (about 2.7eV), it can respond to visible light of 400-460 nm, and because of the layered characteristics of Bi₂WO₆ structure, which consist of WO₆ eight surface layer and Bi₂O₂ layer alternately.

Tungstic heteropoly acid generally refers to heteropoly acid and its salts. It is a polyoxometalate metal complex composed of central (Heteropoly) atoms (P, Si, etc.) and coordinated (multi atom W) bridged by oxygen atoms. It can be widely used in homogeneous and heterogeneous catalytic systems.

Tungsten nitride is a kind of material more popular in tungsten chemicals, some studies show that tungsten nitride is a new catalytic material, the surface properties and catalytic properties similar to platinum, tungsten nitride catalyst application can avoid the pollution caused by industrial catalyst sulfur vulcanization, therefore it has broad application prospects. Moreover, tungsten nitride is also a ceramic material with excellent mechanical and thermal stability. For these two applications, nanoscale tungsten nitride will have a significant advantage.