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Nano tungsten oxide is not only a kind of infrared ultraviolet shielding material, but also a very important member of photocatalysts. Tungsten oxide exhibits very good photocatalytic activity, which is similar to the most classic photocatalyst – titanium dioxide (Ti4+). So, what is a photocatalyst? Photocatalyst refers to a general term for a chemical substance that can act as a catalyst under the excitation of photons. Titanium dioxide, particularly in the anatase form, exhibits photocatalytic activity under ultraviolet (UV) irradiation.…

As a type of transparent thermal insulation material, nano tungsten oxide has the advantages of high heat insulation (infrared shielding rate of 60-99%, varying with the addition ratio) and high visible light transmittance (visible light transmittance of 50-80%). Tungsten oxide itself also has unique physical and chemical properties, such as high temperature resistance, high stability in the air, and so on. For example, tungsten trioxide will exhibit different crystal structures at different temperatures, and different crystal structures have different physical…

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…