
Tungsten oxide nanopowder with photochromic properties may be applied for preparing thermal insulation coating, which may be widely applied in heat insulation field in the future with the implementation of more environmental policies. Nano grain size tungsten oxide is also a type of photocatalyst with photocatalytic properties, which can be used in photolysis of water to produce hydrogen. However, as the photocatalytic activity of tungsten oxide is not high, it needs to be improved by composition, metal loading, and semiconductor…