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Method for preparing zinc oxide nanometer material with orientation arrangement nano-towers

A zinc oxide nanometer, directional arrangement technology, applied in the field of preparation of zinc oxide nanomaterials, can solve the problems of no tower-shaped zinc oxide nanostructure material, high preparation method requirements, unfavorable cost and efficiency, etc., and achieve cheap reaction raw materials, The effect of good uniformity and low cost

Inactive Publication Date: 2004-12-29
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among the many one-dimensional shapes of ZnO nanomaterials (nanorods, nanowires, nanobelts, nanofibers, and nanotubes), there is no report on tower-like ZnO nanostructure materials.
Moreover, the current research on zinc oxide nanomaterials has two deficiencies. One is the high requirements for the preparation method. The preparation methods of one-dimensional zinc oxide nanomaterials that have been reported so far mainly include gas phase method and solvothermal method.
However, these two methods require extremely harsh conditions such as high temperature, high pressure or high vacuum, which have a very negative impact on the cost and efficiency of material preparation, so they need to be improved or replaced.
Another shortcoming is that the one-dimensional zinc oxide nanomaterials currently prepared are mainly powdery and randomly dispersed, so there is still a certain distance for the application of nanodevices.

Method used

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  • Method for preparing zinc oxide nanometer material with orientation arrangement nano-towers
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  • Method for preparing zinc oxide nanometer material with orientation arrangement nano-towers

Examples

Experimental program
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Embodiment 1

[0018] ①In a 100mL tetrafluoroethylene plastic bottle, dissolve 0.01mol zinc nitrate, 0.01mol thiourea, and 0.002mol ammonium chloride in 95mL deionized water, stir until completely dissolved, then add 5ml of 25% ammonia water, while adding Stirring is continued, and after the solution is clarified, a reaction solution for growing a zinc oxide film is prepared.

[0019] ②Immerse a quartz plate with a length of 50mm and a width of 20mm into boiling concentrated sulfuric acid, soak it for 10 hours, then immerse it in acetone solution, ultrasonicate it for 30 minutes, rinse it with a large amount of deionized water, and finally put it in a vacuum oven to dry.

[0020] ③Immerse the quartz substrate processed according to step ② into the reaction solution prepared according to ①, then place the reaction bottle in an oil bath, raise the reaction temperature to 95°C at a speed of 10°C / min, and keep it for 45 minutes . The quartz substrate is then immersed in ice water to cool. Afte...

Embodiment 2

[0023] ①In a 100mL tetrafluoroethylene plastic bottle, dissolve 0.01mol zinc nitrate, 0.01mol thiourea, and 0.002mol ammonium chloride in 95mL deionized water, stir until completely dissolved, then add 5ml of 25% ammonia water, while adding Stirring is continued, and after the solution is clarified, a reaction solution for growing a zinc oxide film is prepared.

[0024] ②Immerse a glass piece with a length of 50mm and a width of 20mm into boiling concentrated sulfuric acid, soak it for 10 hours, then immerse it in acetone solution, ultrasonicate it for 60 minutes, rinse it with a large amount of deionized water, and finally put it in a vacuum oven to dry.

[0025] ③Immerse the glass substrate treated according to step ② into the reaction solution prepared according to ①, then place the reaction bottle in an oil bath, raise the reaction temperature to 97°C at a speed of 20°C / min, and keep it for 60 minutes . The glass substrate is then cooled by immersing it in a bath of ice w...

Embodiment 3

[0027] ①In a 100mL tetrafluoroethylene plastic bottle, dissolve 0.01mol zinc nitrate, 0.01mol thiourea, and 0.002mol ammonium chloride in 95mL deionized water, stir until completely dissolved, then add 5ml of 25% ammonia water, while adding Stirring is continued, and after the solution is clarified, it is prepared as a reaction solution for the growth of zinc oxide nanomaterials in which nanotowers are oriented.

[0028] ② Immerse a quartz plate with a length of 50mm and a width of 20mm into boiling concentrated sulfuric acid, soak it for 8 hours, then immerse it in acetone solution, ultrasonicate it for 45 minutes, rinse it with a large amount of deionized water, and finally put it in a vacuum oven to dry.

[0029] ③Immerse the quartz substrate processed according to step ② into the reaction solution prepared according to ①, then place the reaction bottle in an oil bath, raise the reaction temperature to 94°C at a speed of 15°C / min, and keep it for 45 minutes . The quartz su...

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Abstract

The preparation process of nano tower oriented nano zinc oxide material includes dissolving zinc salt, ammonia water, thiourea and ammonium salt in certain proportion in deionized water to prepare film growing reaction solution; and soaking processed substrate inside the reaction solution, heating to 94-97 deg.c to reaction for 45-60 min to obtain compact nano tower oriented nano zinc oxide material. The said process of the present invention is simple, low in cost and short in production period, and the prepared nano zinc oxide material consists of oriented nano tower of average diameter of 600 nm and length of 6 micron.

Description

technical field [0001] The invention relates to a preparation method of a zinc oxide nanometer material, in particular to a preparation method of a zinc oxide nanometer material with oriented arrangement of nanotowers. The zinc oxide nanomaterial with oriented arrangement of nanotowers is prepared by a chemical solution growth method. Background technique [0002] The structure and morphology of nanomaterials have a great influence on the performance and application of nanomaterials. The preparation of nanocrystalline materials with specific structures and morphologies is of great significance for the development of new fields of nanomaterial functions. One-dimensional nanostructured materials have a good application prospect due to their large aspect ratio. Among these nanomaterials, zinc oxide is widely used in functional nanomaterials and devices such as ultraviolet absorbing materials, photocatalytic materials, varistors, electrode materials, and solar cells due to its g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02
Inventor 王卓钱雪峰
Owner SHANGHAI JIAO TONG UNIV
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