Nano Cesium Tungstate Applied for Heat Insulating Window Glass

Although the previous preparation method of nano cesium tungstate for heat insulating window glass has a good cost advantage, the steps of these preparation methods are mostly too complicated. And these preparation methods require manual operation and complicated operation. Therefore, experts have found that it is necessary to design a type of processing technology of nano grain size cesium tungstate.

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A preparation method of nanometer cesium tungstate powder comprises the following steps:

Step one: According to n (Cs)/n (W) =0.33:1, the cesium salt and the tungsten salt are dissolved in a citric acid solution and an alcohol solvent. After stirring uniformly, the reaction is carried out at 180-200°C for 2-3 hours to obtain tungsten and cesium mixture;

Step two: Add appropriate amount of urea to the mixture of tungsten and cesium, adjust the pH of the reaction solution to 3-5, stir until the urea is completely dissolved;

Step three: The mixed solution in step two is completely washed with argon gas, and subjected to chemical reaction under ultrasonic irradiation for 7-6 hours under the protection of argon gas at 70-90°C to obtain a gelatinous precipitate;

Step four: The gelatinous precipitate is aged for 4-24 hours, then filtered, washed, dried, and finally calcined to obtain nano cesium tungstate powder.

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