Nano violet tungsten oxide has strong absorbing ability of near-infrared light. Therefore, it can be used as a kind of photothermal conversion material. And it has high application value in cancer treatment.

As a kind of multi-functional material, ultrafine W₁₈O₄₉ nanowire has high application value in many important fields, such as gas-sensing materials, sensors and photodetectors. It is usually prepared by solvothermal method, which is simple and environmentally friendly.

Nano violet tungsten oxide (WO_2.72) with size less than 10 nm can be synthesized by alcoholysis and heat treatment. Compared with other forms, nano-sized violet tungsten oxide has better photocatalytic performance. It is a kind of photocatalysis material with high efficiency.

Ultrafine W₁₈O₄₉ nanowire is prepared by WCl₆ and triethylene glycol. During the preparation process, WCl₆ is used as precursor, and triethylene glycol is used as solvent. This is an efficient and environmentally friendly preparation method.