Violet tungsten oxide nano powder for producing glass curtain wall heat insulation coating is a new type of environmentally friendly building energy-saving material. We all know that the high outdoor temperature in summer leads to frequent use of refrigeration equipment such as air conditioners so that the energy consumption is huge. While the transparent heat-insulating glass coating of violet tungsten oxide nanoparticles can greatly reduce the heat of the sun into the room in the summer, thereby greatly reducing the cooling cost, achieving the energy-saving effect, and enhancing the indoor comfort.

Violet tungsten oxide nano powder is a new type of green building energy-saving material for preparing heat-insulating energy-saving film. Such film is an environmental protection film of nano particle size violet tungsten oxide, which is healthier as it has high UV resistance to shield 98%-99% of UV rays, protecting people from skin diseases and even skin cancer, preventing indoor carpets, curtains, fabrics and paints from fading, effectively prolonging their service life.

Violet tungsten oxide nano powder for heat-insulation glass coating can be prepared by a solvothermal method, in which the alcohol solution is ethanol, the reaction temperature is 180°C, the reaction time is 24h, and the molar concentration of the solution after mixing tungsten chloride with ethanol is 15mM.

Violet tungsten oxide nano powder is a kind of important raw material for producing nano transparent thermal insulation coating. And the obtained coating is a green building energy-saving material. As a raw material for energy-saving building materials, the UV-visible-near-infrared spectroscopy absorption properties of nano violet tungsten oxide are the focus of attention. Experts said that its performance can be directly measured on the powder or the aqueous solution thereof.