Normal-temperature ion exchange preparation method for silver tungstate photocatalyst
A photocatalyst, ion exchange technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. high consumption problem
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Embodiment 1
[0019] Weigh 0.25 mmol Na 2 WO 4 Was dissolved in 20.0 mL of deionized water to form a solution, and then 20.0 mL of AgNO 3 The solution (1 mmol) was slowly added dropwise to the above solution and stirred for 0.5 hour. Finally, the product was collected by centrifugation, washed with deionized water and absolute ethanol for several times, and then dried at 60°C to obtain AWO-1:0.25 photocatalyst.
Embodiment 2
[0021] Weigh 0.5 mmol Na 2 WO 4 Was dissolved in 20.0 mL of deionized water to form a solution, and then 20.0 mL of AgNO 3 The solution (1 mmol) was slowly added dropwise to the above solution and stirred for 1.0 hour. Finally, the product was collected by centrifugation, washed with deionized water and absolute ethanol for several times, and then dried at 60°C to obtain AWO-1:0.5 photocatalyst.
Embodiment 3
[0023] Weigh 4.0 mmol Na 2 WO 4 Was dissolved in 20.0 mL of deionized water to form a solution, and then 20.0 mL of AgNO 3 The solution (1 mmol) was slowly added dropwise to the above solution and 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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