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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…

Tungsten oxide powder is a transparent thermal insulation nanopowder, which can be used in building glass to make “warm in winter and cool in summer” not a dream. And it is also energy-saving and environmentally friendly. Tungsten oxide is also a photocatalyst that can be used in photocatalytic hydrogen production, which means that the application range of tungsten oxide has been expanded. In order to verify the photocatalytic hydrogen production performance of tungsten trioxide, researchers have applied a photochemical battery…

Tungsten oxide powder is not only an infrared ultraviolet shielding material, but also may be used as a photocatalyst. And the hydrogen production performance of the composite photocatalyst of tungsten trioxide is higher than the photocatalytic hydrogen production activity of tungsten trioxide prepared by the same method and condition, its composite component and the sample of simple mixing of the two components. Some researchers have synthesized the tungsten trioxide/graphene composite photocatalyst by ultrasonic method and studied the performance of photocatalytic…

Tungsten oxide powder is not only a transparent thermal insulation material, but a photocatalyst, which has good visible light absorption capability with a band gap of about 2.7eV. Generally, it is considered that the suitable photocatalyst has a band gap of 1.8eV. In the study of the photocatalytic properties of tungsten trioxide, a more important research is using tungsten trioxide for photodecomposition of water to produce hydrogen. The conduction band and valence band positions of tungsten trioxide are around 0.7eV…

Tungsten oxide may be applied for manufacturing thermal insulation dispersion, and thus be used in the field of thermal insulation, such as glass window, glass door, and so on. It may also be used as a photocatalyst. Tungsten oxide has excellent light stability and various sources. And it is environmentally friendly. However, tungsten oxide has low photocatalytic activity due to its low conduction band position, which limits the effective separation of photogenerated carriers. Therefore, the research on the tungsten oxide…

Tungsten oxide may not only be applied for producing thermal insulation dispersion liquid, but be used as a photocatalyst in water splitting for hydrogen production. The all tungsten based Z-scheme composite photocatalyst (composed of WO3?0.33H2O and PbWO4) may be synthesized via liquid phase ion-exchange method. The photocatalytic performance test showed that the apparent photodegradation rate constants of RhB over composites are more than 6 to 8 times higher than that of two monomer components. The PL spectroscopy test showed that…

Tungsten oxide is not only a near infrared shielding material, but a photocatalyst. The interstitial carbon doping orthorhombic tungsten trioxide hydrate (C-doped WO3?0.33H2O) may be synthesized via the room temperature liquid phase method. The optical property and theoretical calculation of carbon doped sample have been studied to find that the carbon doping narrowed the Eg (energy gap), improved visible-light absorption and a new level formed above the valence band. And PL spectra show the recombination of photo-generated carriers is suppressed…

Tungsten oxide is not only a type of infrared thermal insulation nano material, but a photocatalytic material. Orthorhombic hydrate tungsten trioxide (o-WO3?0.33H2O) flower-like hierarchical structure may be synthesized via solvothermal method by regulating the amount of acetone. And the photocatalytic testing was carried out and the results showed that flower-like hierarchical structure tungsten trioxide hydrate displays superior photocatalytic performance than thorn sphere tungsten trioxide hydrate. And 88.5% of RhB may be eliminated after 240min. The results also showed that: Compared…

Tungsten oxide is not only a transparent thermal insulation nanopowder, but a photocatalyst. Cubic tungsten trioxide hemihydrates (c-WO3?0.5H2O) may be synthesized via solvothermal method by regulating the amount of acetone and urea, whose size is from 120nm to 180nm. The study found that the crystal water of cubic tungsten trioxide hemihydrate has an important effect on photocatalytic property and the reason has been discussed. The photocatalytic activity decreased when crystal water of as-prepared sample has been removed. While the photocatalytic…

Tungsten oxide is not only a type of infrared ultraviolet shielding material with high transparency, but a photocatalyst with good catalytic performance. Hexagonal tungsten trioxide (h-WO3) with ultrathin nanosheet can be synthesized via hydrothermal method to study the role of urea in the growth process of WO3. The thickness of as-prepared ultrathin nanosheet is about 5nm. Compared with hexagonal tungsten trioxide nanowire and nanorod of the same crystal phase, the as-prepared hexagonal tungsten trioxide ultrathin nanosheet displays superior photocatalytic activity.…