Nano tungsten trioxide has strong absorption in the near-infrared light region, so it is often used to prepare a new environmentally friendly material --- hotel heat insulating glass coating. You know, in recent years, people have begun to pay attention to energy and environment issues. According to the experts, in order to reduce the loss of air-conditioning equipment without affecting the visual effect, tungsten oxide materials, as a new type of near-infrared shielding material, have been studied and discussed one after another.
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It is reported that researchers have focused on cesium doped tungsten oxide, namely cesium tungsten bronze or cesium tungstate. For example, some experts synthesized cesium tungstate powder using tungstic acid and cesium carbonate as raw materials via high-temperature carbothermal reduction. Among them, in terms of grain size and purity, cesium tungstate powder heat treated at 700 °C for 5 hours is relatively preferred. Next, the zirconia beads with a diameter of 50 micrometers are used for wet ball milling, and the coarse particles of cesium tungstate powder can be reduced to about 100 nanometers in one hour.
