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Preparation method of nano zinc oxide rod

A technology of nano-zinc oxide and zinc acetate, applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of large amount of template agent, pollution, lack of diversity of templates, etc., and achieves simple method, small amount and dispersion. uniform effect

Active Publication Date: 2013-03-06
CHINA RES INST OF DAILY CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There have been reports on the use of templates to assist rod-shaped nano-ZnO in the preparation of hydrothermal methods. Currently, the templates used mainly include benzoic acid, P123, polyethylene glycol, ethylenediamine, CTAB, etc. These templates are some Organic or inorganic templates with specific molecular weights basically have no diversity in the templates formed, and at the same time, the amount of templates used is large, and the pollution to the environment is also large.

Method used

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  • Preparation method of nano zinc oxide rod
  • Preparation method of nano zinc oxide rod

Examples

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Embodiment 1

[0019] Weigh 1.6gZn(AC) 2 2H 2 O, dissolve in 40ml of distilled water, stir to dissolve completely, add 4mol / L NaOH dropwise until the precipitate disappears completely, add 10mL of anionic polyacrylamide with a concentration of 1g / L and a molecular weight of 6 million as a template agent, and disperse with high shear Stir at 2500r / min for 10min, pour into a Teflon-lined reactor, and react at 180°C for 2 hours. Cool, filter, fully wash with distilled water and absolute ethanol, and dry at 80°C to obtain nano zinc oxide rods. The obtained rod-shaped nano zinc oxide has an average diameter of 94nm and an average length of 0.7um.

Embodiment 2

[0021] Weigh 0.8gZn(AC) 2 2H 2 O, dissolve in 40ml of distilled water, stir to dissolve completely, add 5mol / L NaOH dropwise until the precipitate disappears completely, add 15ml of cationic polyacrylamide with a concentration of 1g / L and a molecular weight of 8 million as a template agent, and use high shear Dispersion mode Stirring at a speed of 1500r / min for 30min, pouring into a polytetrafluoroethylene-lined reactor, and reacting at 100°C for 24 hours. Cool, filter, fully wash with distilled water and absolute ethanol, and dry at 90°C to obtain nano zinc oxide rods. The obtained rod-shaped nano zinc oxide has an average diameter of 30nm and an average length of 13.3um.

Embodiment 3

[0023] Weigh 1.2gZn(AC) 2 2H 2 O, dissolve in 30ml of distilled water, stir to dissolve completely, add 4mol / L NaOH dropwise until the precipitate disappears completely, add 5ml of anionic polyacrylamide with a concentration of 1.5g / L and a molecular weight of 4 million as a template agent, and use high shear Dispersion mode Stir at 2000r / min for 15min, pour into a polytetrafluoroethylene-lined reactor, and react at 130°C for 10 hours. Cool, filter, fully wash with distilled water and absolute ethanol, and dry at 90°C to obtain nano zinc oxide rods. The obtained rod-shaped nano zinc oxide has an average diameter of 56nm and an average length of 4.7um.

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Abstract

The invention relates to a preparation method of a nano zinc oxide rod, and the preparation method comprises the steps that zinc acetate is prepared into solution with concentration of 0.09 to 0.72mol / L; sodium hydroxide (NaOH) is dropped into the solution until the precipitate is completely dissolved; polyacrylamide polymer compound template agent which is 1.05 percent to 12.6 percent of the mass of the added zinc is added into the completely dissolved solution, the solution is poured into a reaction kettle after being blended for 10 to 30min with a rotation speed of 1500 to 2500r / min, and the solution is reacted for 1 to 24h under the temperature of 100DEG C to 180DEG C; and reaction products are filtered, washed and dried to obtain the nano zinc oxide rod. The preparation method has the advantages of small template agent consumption, no pollution, simplicity and convenience in method and adaptability to mass production.

Description

technical field [0001] The invention belongs to a preparation method of nano zinc oxide rods. Background technique [0002] Nano-zinc oxide is a self-activated semiconductor material with a band gap of 3.27eV at room temperature and an excitron binding ability of 60meV. This determines that nano-zinc oxide has the ability to emit light from visible light to ultraviolet light. Therefore, in addition to the application of nano-zinc oxide in the fields of rubber, ceramics, daily chemicals, coatings, and magnetic materials, nano-ZnO is also widely used in ultraviolet detectors, ultraviolet semiconductor lasers, transparent conductive films, ZnO heterojunctions, field emission, liquid crystal displays and Diluted magnetic semiconductors have broad application prospects. [0003] Among them, rod-like ZnO nanostructures, in addition to the excellent properties of bulk materials, also have unique electrical, optical and chemical properties, and can also form polymer-based nanocomp...

Claims

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Application Information

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IPC IPC(8): C01G9/02B82Y40/00
Inventor 李玉霞任真郭建平
Owner CHINA RES INST OF DAILY CHEM IND
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