Tungsten disulfide (WS2) is a promising solid inorganic lubricating material. Graphite and molybdenum disulfide (MoS2) are the earliest and widely used solid lubricating materials. However, WS2 has the tendency to replace molybdenum disulfide or to develop together with molybdenum disulfide.

Yellow tungsten oxide for air purification is an emerging photocatalyst product, which is different from the air purification products with common adsorption and filtration methods on the market. Compared with traditional photocatalyst products, the requirements of tungsten trioxide on the use environment are greatly reduced. It can exert high effects under weak visible light such as indoor lights or sunlight, so it has been widely used in homes, companies, schools, hospitals and other places.

Yellow tungsten oxide photocatalyst is an active material with tungsten oxide nanoparticles as photocatalytic particles, whose application has attracted much attention as it is environmentally friendly and non-toxic with excellent photocatalytic degradation function.

Yellow tungsten oxide for antibacterial material is a photocatalyst and is regarded as one of the safest purification materials in the world. Under weak indoor lights, it absorbs light to form electrons and holes, releasing hydroxyl radicals and active oxygen, to easily decompose 99% of viruses and bacteria indoors.