Tungsten oxide powder is a type of infrared thermal insulation nano material that can be applied to smart glass in the form of thermal insulation film with high visible light transmittance and high thermal insulation. Tungsten oxide is also a catalyst that can be used in photocatalytic degradation of organic pollutants. Certainly, tungsten oxide has many other applications.
Why do scientists study the photocatalytic degradation of organic pollutants of tungsten trioxide? Researchers have found that photocatalytic oxidation reactions driven by semiconductor materials can remove organic contaminants that are difficult to naturally degrade and process, and can also treat organic contaminants at very low concentrations. Among them, in this photocatalytic oxidation reaction, photogenerated holes with extremely strong oxidizing power generally have a main effect. While the valence band position of tungsten trioxide is relatively low, about 3.4eV, the photogenerated holes have large oxidizing ability, which means that the tungsten trioxide has a certain photocatalytic performance.
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