“Three wastes” pollution produced in the preparation of tungsten disulfide, harming the human health and environment. They are tungsten-containing residue, acid-containing liquor and hydrogen sulfide together with other gases. They deserve our attention.

Cations in ionic liquid form a cation layer around spherical tungsten disulfide particles to prevent their contact. In this way, ionic liquid can effectively disperse spherical tungsten disulfide in lubricating oil.

Composite of tungsten disulfide and graphene, with two-dimensional structure, has high catalytic activity and excellent electro-catalytic properties. It has broad application prospects in the field of full cell and is regarded as a material to replace the traditional electrocatalyst.

Nanocomposite of polypyrrole and tungsten disulfide can be prepared by inserting polypyrrole into tungsten disulfide layers. Usually, the peeling-recomposition technology and monomer intercalation method are applied in this simple preparation method.

Nanocomposite of polyether and tungsten disulfide can be prepared by inserting polyether polymer into tungsten disulfide layers and the peeling-recomposition technology is used in the preparation process. As for the peeling-recomposition technology, it involves three steps: monolayer peeling, polymer solution direct intercalation and recomposition.

Silver ions can be inserted to tungsten disulfide layers to prepare sandwich composite of silver and tungsten disulfide. The preparation is simple and suitable for large-scale production. And prepared sandwich composite usually has a better conductivity than that of tungsten disulfide.

Inorganic fullerene tungsten disulfide nanotube has high application value in many fields. How to prepare inorganic fullerene WS₂ nanotube? It can be prepared by chemical gas-solid reaction method and template method. Among them, the former is the most mature preparation method at present.

Inorganic fullerene tungsten disulfide nanotube has structure of concentric tube layers and can be widely used in many important fields. How to prepare inorganic fullerene WS₂ nanotube? The methods of thermal decomposition and direct heating can be taken, which are simple and time-saving.

Inorganic fullerene tungsten disulfide nanotube is a new material that has good mechanical properties, electronic transportation properties, together with excellent friction performance. So it has broad application value in many important fields such as electrode materials, hydrogen storage materials, catalysts and so on.

Flake tungsten disulfide can be prepared by solid state method. Tungsten powder and sulfur powder (the mass ratio is 1:3) is mixed in vacuum at high temperature in the preparation process. It is a simple, stable and controllable preparation method.