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Tungsten oxide may be applied for producing near-infrared shielding material (thermal insulation material), and therefore be used for building energy conservation. In other words, tungsten oxide thermal insulation material may be used on architectural glass to reduce the use of air conditioners in hot summer, thereby reducing energy consumption and reducing energy charge of air conditioning. Tungsten oxide is also a photocatalyst that can treat dye water in wastewater systems. Dyes are wonderful materials that make the world glamorous, and…

Tungsten oxide, which may be applied for producing nano-ceramic dispersion solution, may be prepared by thermal decomposition method. Preparation of Tungsten Oxide by Thermal Decomposition Method An N2-inserted tungsten trioxide photoelectrode can be prepared by thermal decomposition of ammonium tungstate. And the product can be used for oxidation of water. The specific processes are shown as follows. H2WO4 was dissolved in 15NH4OH, and the solvent was evaporated, and then the obtained ammonium tungstate was heated under oxygen, after that, ammonium…

Tungsten oxide may be applied in thermal insulation film, which reflects its thermal insulation properties. And it may be used as a photocatalyst with good photocatalytic properties. However, there are some shortcomings in the photocatalysis process, so that it is necessary to improve the photocatalytic performance of tungsten oxide powder. Researchers have made a lot of efforts to address the shortcomings of semiconductor photocatalysts in the photocatalytic process. In 1976, the first article on the field of photoelectrochemistry of tungsten…

Tungsten oxide, which may be applied for producing thermal insulation paper, may be prepared by hydrothermal/solvent method (high pressure solution method). This production method is a common method of crystal growth. Preparation of Tungsten Oxide by Hydrothermal/Solvothermal Method A tungsten trioxide nanowire array can be synthesized by hydrothermal method. Compared to the sintering process, the process has a lower synthesis temperature, so that fewer defects are generated in the crystal during growth. Compared to the atmospheric pressure heating method, a…

Tungsten oxide may be applied for the manufacturing of thermal insulation masterbatch, and therefore be applied in many other different fields, such as heat insulating films in building glasses. The tungsten oxide powder may be prepared by template method. Preparation of Tungsten Oxide by Template Method The 3D ordered macroporous tungsten trioxide of anti-cobble structure can be synthesized by the colloidal template method using PMMA microspheres. The PMMA microspheres were immersed in the tungsten precursor solution, and excess tungsten precursor…

Tungsten oxide, which may be applied for preparing nano-ceramic color master, may be prepared by pulsed laser ablation (abbreviated as PLA). Laser ablation is the process of removing material from a solid (or occasionally liquid) surface by irradiating it with a laser beam. Preparation of Tungsten Oxide by Pulsed Laser Ablation Method Leaf-shaped tungsten trioxide can be prepared by pulsed laser ablation in a liquid medium. The tungsten foil was placed in distilled water, and then the tungsten foil was…

Tungsten oxide nanopowder, which may be used for manufacturing thermal insulation dispersion, may be prepared by vapor phase deposition method. Preparation of Tungsten Oxide by Vapor Deposition Method The tungsten trioxide powder was placed in a quartz tube, and a tungsten sheet was placed as a substrate in a section of the quartz tube. Then, tungsten trioxide powder was heated and passed through N2. After a while, a layer of purple product was obtained on the tungsten sheet. And it…

Tungsten oxide nanopowder, which may be applied for the production of thermal insulation dispersion liquid, may be prepared by chemical precipitation method – a type of liquid phase method. Preparation of Tungsten Oxide by Chemical Precipitation Method The SnO2-WO3 powder can be synthesized by chemical precipitation method. Specific processes are shown as below. The sodium tungstate and the tin tungstate solution are uniformly mixed, and then the solution is slowly dropped into boiling dilute sulfuric acid, and the obtained precipitate…

Tungsten oxide nanopowder is a kind of near infrared shielding material, which has certain development and application on the surface of transparent glasses such as ordinary glass, PMMA (polymethyl methacrylate) and the like. The tungsten oxide heat insulating material is not only economical and practical, but also energy-saving and environmentally friendly. And therefore it has great potential for market development. Today, energy and the environment have become two major issues that are attracting more and more attention from the whole…

Tungsten nanopowder powder is a type of infrared thermal insulation nano material, which can be used in building glasses to shield the heat source in sunlight, meeting the concept of building energy conservation and environmental protection. At present, there are two main ways to carry out energy-saving renovation of glass in existing buildings. One is to coat a film on glass. This kind of heat-insulating film of tungsten oxide is generally applied in high-grade automotive glass and high-end residential glass.…