Preparation method of flaky zinc molybdate microcrystal
A flaky zinc molybdate and microcrystal technology, applied in chemical instruments and methods, molybdenum compounds, inorganic chemistry, etc., can solve problems such as difficulties in large-scale production, complicated preparation process, and difficult to control the shape, and meet the requirements, The effect of low preparation cost and easy operation control
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Embodiment 1
[0026] The metal zinc substrate (99.9%, thickness 0.15 mm) was ultrasonically cleaned for 20 minutes, then cleaned with deionized water and absolute ethanol, and then dried at room temperature. Soluble molybdate (sodium molybdate) and ammonia water (30% m) were formulated into a mixed solution at a molar ratio of 1:5, and the concentration of sodium molybdate was 0.5 mol / L. The cleaned metal zinc substrate was directly put into the mixed solution and reacted at 20 °C for 2 days. After the reaction finishes, take out the product, after washing, put into the baking oven, under 30 ℃ of conditions, dry 2 hours, promptly make the zinc molybdate microcrystal of sheet.
Embodiment 2
[0028] The metal zinc substrate (99.9%, thickness 0.15 mm) was ultrasonically cleaned for 20 minutes, then cleaned with deionized water and absolute ethanol, and then dried at room temperature. Soluble molybdate (sodium molybdate) and ammonia water (30% m) were prepared into a mixed solution at a molar ratio of 1:9, and the concentration of sodium molybdate was 0.2 mol / L. The cleaned metal zinc substrate was directly put into the mixed solution, and reacted at 25 °C for 1 day. After the reaction is over, take out the product, after washing, put it into an oven, and dry it for 2 hours at 30°C to obtain flaky zinc molybdate microcrystals.
Embodiment 3
[0030] The metal zinc substrate (99.9%, thickness 0.15 mm) was ultrasonically cleaned for 25 minutes, then cleaned with deionized water and absolute ethanol, and then dried at room temperature. Soluble molybdate (potassium molybdate) and ammonia water (30% m) were prepared into a mixed solution at a molar ratio of 1:3, and the concentration of potassium molybdate was 0.4 mol / L. The cleaned metal zinc substrate was directly put into the mixed solution and reacted at 20 °C for 2 days. After the reaction is over, take out the product, after washing, put it into an oven, and dry it for 2 hours at 30°C to obtain flaky zinc molybdate microcrystals.
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