Nano Tungsten Trioxide Applied for Study Heat Insulating Glass Coating

With the popularization of applications in the field of transparent study heat insulating glass coating, more and more researchers have begun to pay attention to nano tungsten trioxide. Among them, the preparation of WO3 nano powder has attracted much attention. Therefore, the following mainly introduces a method for preparing nano tungsten trioxide.

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A Preparation Method of Nano Tungsten Trioxide for Study Heat Insulating Glass Coating

1 mmol of sodium tungstate (analytical pure) was dissolved in 20 mL of distilled water, and then the sodium tungstate aqueous solution was added to 0.5 g of molten octadecylamine (analytical pure) to form a white flocculent precipitate. Subsequently, 6 mL of concentrated HCl (analytical pure) was added to form a milky white precursor, and the precursor was transferred to a polytetrafluoroethylene liner in an autoclave. The reaction temperature was controlled to 150 °C, and the reaction time was 12 h. After the reaction was completed, the reaction kettle was naturally cooled to room temperature, and the obtained pale yellow precipitate was washed by centrifugation with anhydrous ethanol (analytical pure) several times, and then dried in a drying box to obtain nano tungsten trioxide.

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