After the report of Xiong Yujie ect. of University of Science and Technology of China (USTC) designed the tungsten trioxide (WO₃) defect state nanostructure, the reports about this great discovery is continued. This defective state of tungsten oxide nanostructures are prepared based on inorganic solid chemistry precise, with a crystal defect engineering, and it exhibits excellent catalytic performance under aerobic coupling a broad spectrum of lighting conditions, and achieves high hopes on the realizing of low energy consumption and cost of organic chemical technology.

 

According to the introduction of Xiong Yujie, "This achievement is the result of cross cooperation of multidisciplinary", on the basis of catalyst design has made progress, the research group cooperated with many professors of their university, to clearly describe the oxygen vacancy defect states in overcoming metal tungsten oxide metal atom saturated ligand and a light absorbing narrow margin disadvantage by the theoretical simulation method, thus to in-depth understand its action mechanism. "It is based on this understanding, we are able to regulate through the crystal defect engineering solar energy to chemical energy conversion performance, and offer the possibility for the solar energy to replace the thermal energy organic synthesis, also it has an important role in promoting the light of rational design of catalytic material."

 

Conventional organic synthesis is achieved by relying on thermal catalytic technology, however, that process takes a tremendous amount of heat which often results in high cost, and also causes some pressures to environmental protection. 1983, the realization of the photocatalytic halogenated aromatic carboxyl synthesis reaction started the researching in photocatalysis of organic synthesis. Then, as the photocatalysis in organic synthesis has attracted more and more attention, the application of photocatalytic selective organic synthesis is also carried out in succession. Photocatalytic can cause a lot of attention in organic synthesis will thank to some of its significant potential. WO₃ as a semiconductor photocatalyst has caused many concerned because of its mild reaction condition, low energy consumption, less secondary pollution and other advantages. In recent years, the photocatalytic properties of WO₃ are in the ongoing research, especially WO₃ ultrafine powder has broad prospects in catalytic field. The time, the discovery of defects tungsten trioxide nanostructure has undoubtedly added an important role on the expanding of WO₃ in application of photocatalytic.