Tungsten trioxide may be applied for the production of nano-ceramic dispersion solution, which is a type of nano energy-saving coating with high visible light transmittance and excellent heat insulation effect. In other words, WO3 can be applied in the field of building energy conservation.
Tungsten trioxide can be prepared by precipitation method. The precipitation method is mainly divided into coprecipitation method and chemical precipitation method. The precipitation method usually mixes different chemical components in the solution state. The basic principle is that a suitable precipitation agent is added to the salt solution to obtain the precursor precipitate, and the precipitate is dried and burned to form nanopowder. The powder crystals prepared by the precipitation method tend to be complete, the particle size distribution is uniform, and the particle size is small. But, the obtained WO3 powder is prone to agglomeration, which is not conducive to detection.
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