A kind of normal temperature ion exchange preparation method of silver tungstate photocatalyst
A photocatalyst and ion exchange technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of expensive laser instruments, not suitable for wide application, energy Consumption and other issues
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Embodiment 1
[0019] Weigh 0.25 mmol Na 2 WO 4 Dissolve in 20.0 mL of deionized water to form a solution, then mix 20.0 mL of AgNO with vigorous stirring 3 The solution (1 mmol) was slowly added dropwise to the above solution, which was stirred for 0.5 hours. Finally, the product was collected by centrifugation, washed several times with deionized water and absolute ethanol, and then dried at 60 °C to obtain the photocatalyst AWO-1:0.25.
Embodiment 2
[0021] Weigh 0.5 mmol Na 2 WO 4 Dissolve in 20.0 mL of deionized water to form a solution, then mix 20.0 mL of AgNO with vigorous stirring 3 The solution (1 mmol) was slowly added dropwise to the above solution, which was stirred for 1.0 hour. Finally, the product was collected by centrifugation, washed several times with deionized water and absolute ethanol, and then dried at 60 °C to obtain the photocatalyst AWO-1:0.5.
Embodiment 3
[0023] Weigh 4.0 mmol Na 2 WO 4 Dissolve in 20.0 mL of deionized water to form a solution, then mix 20.0 mL of AgNO with vigorous stirring 3 The solution (1 mmol) was slowly added dropwise to the above solution, which was stirred for 1.5 hours. Finally, the product was collected by centrifugation, washed several times with deionized water and absolute ethanol, and then dried at 60 °C to obtain the AWO-1:4 photocatalyst.
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