Method for preparing monodisperse, non agglomerate Nano zinc oxide with high ultraviolet absorption
A nano-zinc oxide, monodisperse technology, used in nanostructure manufacturing, zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of decreased purity, uneven powder particle size, uneven dispersion, etc., and achieve good crystallinity , good uniformity, low cost effect
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Examples
Embodiment 1
[0028] 14.875g of zinc nitrate and 9.6g of ammonium carbonate were respectively dissolved in a mixed solvent composed of 150ml of absolute ethanol and 50ml of deionized water, and stirred evenly. Then adopt the reverse titration method, under vigorous stirring, gradually add the zinc nitrate solution to the ammonium carbonate solution dropwise, after the dropwise addition is completed, gradually raise the temperature to 60°C, and react at a constant temperature of 60°C for 1 hour under high-speed stirring. After cooling to room temperature, the white precipitate was obtained by suction filtration, which was washed 4-5 times with deionized water and absolute ethanol. After suction filtration, the obtained filter cake was dried in a vacuum drying oven at a drying temperature of 60° C. and a drying time of 12 hours. The dried precipitate was calcined in a muffle furnace at a temperature of 300° C. for 2 hours, and finally A monodisperse and non-agglomerated nano-zinc oxide white ...
Embodiment 2
[0033]14.875g of zinc nitrate and 9.6g of ammonium carbonate were respectively dissolved in a mixed solvent composed of 50ml of absolute ethanol and 50ml of deionized water, and stirred evenly. Then adopt the reverse titration method, under vigorous stirring, gradually add the zinc nitrate solution to the ammonium carbonate solution dropwise, after the dropwise addition is completed, gradually raise the temperature to 60°C, and react at a constant temperature of 60°C for 1 hour under high-speed stirring. After cooling to room temperature, the white precipitate was obtained by suction filtration, which was washed 4-5 times with deionized water and absolute ethanol. After suction filtration, the obtained filter cake was dried in a vacuum oven at a drying temperature of 60° C. and a drying time of 10 hours. The dried precipitate was calcined in a muffle furnace at a temperature of 300° C. for 2 hours, and finally A monodisperse and non-agglomerated nano-zinc oxide white powder is...
Embodiment 3
[0038] 16.1 g of anhydrous zinc sulfate and 16.0 g of ammonium bicarbonate were respectively dissolved in a mixed solvent composed of 250 ml of absolute ethanol and 250 ml of deionized water, and stirred evenly. Then use the reverse titration method, under vigorous stirring, add the zinc nitrate solution to the ammonium bicarbonate solution, after the dropwise addition is completed, gradually raise the temperature to 60°C, and react at a constant temperature of 60°C for 1 hour under high-speed stirring. After cooling to room temperature, the white precipitate was obtained by suction filtration, which was washed 4-5 times with deionized water and absolute ethanol. After suction filtration, the obtained filter cake was dried in an electric heating constant temperature blast drying oven, the drying temperature was 60° C., and the drying time was 24 hours. The dried precipitate was calcined in a muffle furnace at 350° C. for 2 hours; finally a monodisperse white nano-zinc oxide po...
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Abstract
Description
Claims
Application Information
- IPC
- C01G9/02; B82B3/00
- Inventors
- 施利毅; 马书蕊