Synthetic method for zinc oxide nano-particles

A technology of zinc oxide nanometer and synthesis method, applied in the field of nanomaterial synthesis, can solve the problems of difficulty in meeting industrial production, unfavorable industrial production, long preparation time, etc., and achieves the effects of low device requirements, simple operation and rapid reaction process

Inactive Publication Date: 2013-01-16
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, physical vapor deposition method, chemical vapor deposition method and template method have higher requirements on equipment, which is not conducive to industrial production
However, the liquid phase direct reaction method, electrochemical deposition method, and sol-gel method are cumbersome, and the preparation time is long and it is difficult to meet the requirements of industrial production.

Method used

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  • Synthetic method for zinc oxide nano-particles
  • Synthetic method for zinc oxide nano-particles
  • Synthetic method for zinc oxide nano-particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] According to the mass ratio of 12.6:26.4:30.2:30.8, weigh chemically pure Al, CuO, ZnO, ZrO with a particle size of 200 mesh 2 The powder is mixed evenly and then poured into the reaction container. Spread a layer of ignition powder on the surface of the powder, and use the ignition gun to ignite the ignition powder to induce a self-propagating reaction. After the reaction is over, the product is obtained in a stainless steel collection device placed 30-40 cm above the reaction vessel, and the collected product is placed in a tube furnace for annealing at 200 degrees Celsius for fifteen minutes and slowly cooled with the furnace. The final product is tested by XRD analysis and scanning electron microscope. Tests have proved that the product is high-purity zinc oxide particles with a spherical shape and an average particle size of about 250 nanometers.

Embodiment 2

[0028] According to the mass ratio of 11.6:24.4:32.3:31.7, weigh chemically pure Al, CuO, ZnO, ZrO with a particle size of 200 mesh 2 The powder is mixed evenly and then poured into the reaction container. Spread a layer of ignition powder on the surface of the powder, and use the ignition gun to ignite the ignition powder to induce a self-propagating reaction. After the reaction is over, the product is obtained in a stainless steel collection device placed 30-40 cm above the reaction vessel, and the collected product is placed in a tube furnace for annealing at 150 degrees Celsius for ten minutes and then slowly cooled with the furnace. The final product is tested by XRD analysis and scanning electron microscope. Tests have proved that the product is high-purity zinc oxide particles with a spherical shape and an average particle size of about 230 nanometers.

Embodiment 3

[0030] According to the mass ratio of 14.2:28.3:28.2:29.3, weigh chemically pure Al, CuO, ZnO, ZrO with a particle size of 300 mesh 2 The powder is mixed evenly and then poured into the reaction container. Spread a layer of ignition powder on the surface of the powder, and use the ignition gun to ignite the ignition powder to induce a self-propagating reaction. After the reaction is finished, the product is obtained in a stainless steel collection device placed 30 to 40 centimeters above the reaction vessel, and the collected product is placed in a tube furnace for annealing at 250 degrees Celsius for 30 minutes and slowly cooled with the furnace. The final product is tested by XRD analysis and scanning electron microscope. Tests have proved that the product is high-purity zinc oxide particles with a spherical shape and an average particle size of about 270 nanometers.

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Abstract

The invention discloses a method for synthetizing nano zinc oxide particles by utilizing high-temperature self-propagating reaction. The method includes: mixing chemically pure Al, CuO, ZnO and ZrO2 powder with grain size of 200 meshes according to a certain proportion, filling the powder in a graphite crucible and laying a layer of pyrophoric powder on the surface of the powder, generating self-propagation high-temperature reaction by igniting the pyrophoric powder, obtaining product in a stainless steel collector disposed at a position 30-40cm above the crucible, placing the collected product into a tubular furnace for annealing at the temperature of 150 DEG C-250 DEG C for 10-30min and carrying out slow furnace cooling to obtain a final product. The synthetic method for zinc oxide nano-particles is simple in process, low in equipment requirement, high in yield, high in purity and full of industrial production value.

Description

technical field [0001] The invention belongs to the field of nanomaterial synthesis, and in particular relates to a self-propagating high-temperature synthesis method of zinc oxide nanoparticles. Background technique [0002] In order to achieve the limitation of light radiation (especially ultraviolet light) in some occasions, materials with excellent ultraviolet light absorption ability or sensors with excellent photoelectric properties are required to limit or detect ultraviolet light radiation. In the field of environmental protection, materials with excellent catalytic degradation effects are required to promote the decomposition of organic products. At the same time, the rapid development of modern electronic technology requires the development of electronic components in a smaller direction. Nano-scale semiconductor materials with excellent UV resistance, catalytic degradation, photoluminescence and optoelectronic properties have attracted extensive research by schol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/03B82Y40/00
Inventor 张国栋肖亚东刘念
Owner WUHAN UNIV
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