Tungsten oxide may be used in heat insulating window glass, which mainly reflects its photochromic properties. Tungsten oxide powder may also be used for photocatalytic degradation of organic dyes (contaminants). Dye, as a substance that brings us color, is almost used in all aspects of life. For example, azo dyes, which have the advantages of low synthesis cost and outstanding dyeing properties, are widely used in the dyeing of fibers, leather, wood, plastics, rubber, and food, etc. And they are…

Tungsten oxide may be applied for producing window heat insulation film so that this type of thin film will has the characteristics of high heat insulation, high visible light transmittance, anti-glare, anti-radiation, stain resistance, anti-aging, self-cleaning and privacy protection. The tungsten oxide powder may be prepared by thermal decomposition method. Preparation of Tungsten Oxide by Thermal Decomposition Method The tungsten trioxide (WO3) is dissolved in aqueous ammonia, and citric acid is added as a shape control agent, and therefore tungsten…

Tungsten oxide may be used for producing thermal insulating glass to reduce indoor or in-car temperature, thereby improving human comfort and saving energy. Currently, there are various methods for preparing tungsten oxide. According to the nature of the raw materials and the difference of reaction process, it may be roughly divided into solid phase method, gas phase method, and liquid phase method. And the synthesis method has a significant influence on the physicochemical properties of the material as it directly…

Tungsten oxide may be applied as a heat insulation coating for the production of products such as heat-insulating films that require high heat insulation and high transparency. Tungsten oxide powder is also a photocatalyst, which is expected to be used to treat harmful substances such as azo dyes, anthraquinone dyes and triarylmethane dyes. These dyes have relatively stable physicochemical properties, which are difficult to degrade in nature. What worse, they are difficult to be handled during processing. At present, photocatalytic…

Tungsten oxide may be used in the preparation of thermal insulation coating, which may be applied in heat insulating window glass and heat insulation building glass. In other words, the heat insulating coating may be used on smart glass. Tungsten oxide powder is also a type of inorganic photocatalyst that can be used to treat wastewater discharge caused by dyes. Our world is colorful. In a way, it means that dyes are everywhere around us. And people are constantly pursuing…

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…