Spherical nano tungsten disulfide can be prepared by hydrothermal method using ionized water as a solvent, sodium tungstate and thiourea, along with hydroxylamine hydrochloride as reducing agent and CTAB as surfactant. It is a simple and cheap preparation method.

Tungsten disulfide is a new kind of photocatalyst that has high photocatalytic activity. Such a photocatalyst can be widely used in photocatalytic water-splitting for hydrogen production, because it can effectively improve the utilization of solar energy and hydrogen production rate under visible light.

As an efficient preparation method of tungsten disulfide (WS2), high pressure synthesis has attracted more and more attention. The preparation process is simple, low-cost and environmentally friendly. And the prepared tungsten disulfide usually has high density, crystallinity and good symmetry.

Radio frequency sputtering is a common and simple method for preparing tungsten disulfide film that has good compact and coating binding force. And in the preparation process, tungsten disulfide target is discharged continuously by radio frequency excitation in inert gas.