Tungsten trioxide powder applying for thermal insulation dispersion liquid has high absorption efficiency of sunlight. They are mainly near infrared rays and ultraviolet rays in the sunlight. Tungsten trioxide is also a type of potential n-type semiconductor photocatalyst after titanium dioxide (TiO2). The photocatalytic activity of tungsten trioxide for degrading pollutants in water is high, especially for the degradation of diazo dyes. Tungsten trioxide is also a cheap and stable transition metal oxide with a low band gap (about 2.6-2.7eV).
The heat-insulating dispersion liquid prepared using tungsten trioxide as raw material plays a wetting role in the preparation of ceramic. Wetting generally refers to the process where the interface between particles and particles is replaced by interfaces between particles and solvents, dispersants, and others. In order to improve the dispersibility of the ceramic powder, it is necessary to use effective additives (tungsten trioxide powder) to reduce the surface tension of the medium.
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