Highly uniform zinc oxide submicrospheres with controllable particle size and preparation method thereof
A kind of zinc oxide, submicron technology, applied in the field of highly uniform zinc oxide submicron ball and its preparation
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Embodiment 1
[0028] The monodisperse zinc oxide submicron spheres with a particle size of 460±10nm are prepared by a multi-step growth method of precisely controlling the particle size. The specific preparation method is:
[0029] 1) Weigh 6.00g of polyvinylpyrrolidone with an average molecular weight of 40000, measure 450ml of ethanol, and stir and disperse the polyvinylpyrrolidone in the ethanol solution at room temperature;
[0030] 2) Weigh 1.08g of zinc acetate dihydrate, measure 50ml of ethylene glycol, and disperse the zinc acetate dihydrate in the ethylene glycol solution with ultrasonic stirring at room temperature;
[0031] 3) Mix the solutions obtained in steps 1) and 2), heat to 75°C, and stir for 2-4h;
[0032] 4) Measure 15ml of deionized water, add the deionized water into the solution obtained in step 3) and stir rapidly for 2 minutes;
[0033] 5) Stir and react in an oil bath at 75°C for 1.5h;
[0034] 6) The obtained zinc oxide submicron spheres are washed with ethanol...
Embodiment 2
[0039] The monodisperse zinc oxide submicron spheres with a particle size of 150±10nm are prepared through a multi-step growth method of precisely controlling the particle size. The specific preparation method is:
[0040] 1) Weigh 6.00g of polyvinylpyrrolidone with an average molecular weight of 40000, measure 450ml of ethanol, and stir and disperse the polyvinylpyrrolidone in the ethanol solution at room temperature;
[0041] 2) Weigh 0.54g of zinc acetate dihydrate, measure 50ml of ethylene glycol, and disperse the zinc acetate dihydrate in the ethylene glycol solution with ultrasonic stirring at room temperature;
[0042] 3) Mix the solutions obtained in steps 1) and 2), heat to 75°C, and stir for 2-4h;
[0043] 4) Measure 15ml of deionized water, add the deionized water into the solution obtained in step 3) and stir rapidly for 2 minutes;
[0044] 5) Stir and react in an oil bath at 75°C for 1.5h;
[0045] 6) The obtained zinc oxide submicron spheres are washed with et...
Embodiment 3
[0048] The monodisperse zinc oxide submicron spheres with a particle size of 320±10nm are prepared through a multi-step growth method of precisely controlling the particle size. The specific preparation method is:
[0049] 1) Weigh 6.00g of polyvinylpyrrolidone with an average molecular weight of 40000, measure 450ml of ethanol, and stir and disperse the polyvinylpyrrolidone in the ethanol solution at room temperature;
[0050] 2) Weigh 0.81g of zinc acetate dihydrate, measure 50ml of ethylene glycol, and disperse the zinc acetate dihydrate in the ethylene glycol solution with ultrasonic stirring at room temperature;
[0051] 3) Mix the solutions obtained in steps 1) and 2), heat to 75°C, and stir for 2-4h;
[0052] 4) Measure 15ml of deionized water, add the deionized water into the solution obtained in step 3) and stir rapidly for 2 minutes;
[0053] 5) Stir and react in an oil bath at 75°C for 1.5h;
[0054] 6) The obtained zinc oxide submicron spheres are washed with et...
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