Bactericide wastewater is a typical kind of toxic and harmful industrial wastewater which is difficult to degrade, such as wastewater from pesticide industry and some chemical industry. Because of the high concentration of bactericide in wastewater, it can kill and inhibit the growth of microorganisms. On the other hand, most of the organic fungicides are polycyclic or heterocyclic organic compounds with poor biodegradability. Therefore, it is difficult to treat the bactericide wastewater directly by biotechnology.

Lubrication of aircraft tail is very important. With good lubricating performance and excellent resistance to high temperature and extreme pressure, tungsten disulfide has high application value in aircraft tail lubrication.

Polluted wastewater and anti biotic wastewater are typical toxic and harmful industrial wastewater that are difficult to degrade, such as wastewater from pesticide industry and wastewater from some chemical industry. Because of the high concentration of fungicides in wastewater, which can kill and inhibit the growth of microorganisms, it is difficult to treat this kind of wastewater directly by biotechnology.

The preparation of composite of tungsten disulfide and graphene involves the four steps: the preparation of graphene oxide, the preparation of RGO, the preparation of tungsten disulfide and the preparation of composite of WS₂ and RGO. This is a simple preparation method with low cost.