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Process for preparing zinc oxide nano-stick

A technology of zinc oxide nanorods and zinc chloride, applied in the fields of nanostructure manufacturing, zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of long reaction time and achieve the effect of rapid preparation

Inactive Publication Date: 2008-01-09
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the traditional hydrothermal synthesis of ZnO nanorods, which requires the assistance of surfactants or complexing agents, and the long reaction time.

Method used

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  • Process for preparing zinc oxide nano-stick
  • Process for preparing zinc oxide nano-stick
  • Process for preparing zinc oxide nano-stick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 0.87 g of zinc chloride (ZnCl 2 ) and 0.64 g of 85% hydrazine hydrate (N 2 h 4 ·H 2 0) Put into 160 milliliters of deionized water respectively, after magnetic stirring for 10 minutes, put the above-mentioned prepared solution into the polytetrafluoroethylene lining of the autoclave, the lining volume is 200 milliliters, that is, the filling degree is 80% . The solution was treated at 150° C. for 8 hours, and the treated solution was centrifuged and dried to obtain ZnO nanorods with a diameter of about 70 nanometers and a length of 2-4 micrometers. Figure 1 is the XRD spectrum of the ZnO nanorods, which is completely consistent with the ZnO standard card (JCPDS no.76-0704), indicating that the product is pure zinc oxide. Fig. 2 is a scanning electron micrograph of the ZnO nanorod, and it can be seen from Fig. 2 that the obtained product is a relatively regular nanorod. Fig. 3 is a transmission electron micrograph of the ZnO nanorod, and it can be seen from Fig. 3 t...

Embodiment 2

[0018] 0.87 g of zinc chloride (ZnCl 2 ) and 0.64 g of 85% hydrazine hydrate (N 2 h 4 ·H 2 0) Put into 160 milliliters of deionized water respectively, after magnetic stirring for 10 minutes, put the above-mentioned prepared solution into the polytetrafluoroethylene lining of the autoclave, the lining volume is 200 milliliters, that is, the filling degree is 80% . The solution was treated at 250° C. for 24 hours, and the treated solution was centrifuged and dried to obtain ZnO nanorods with a diameter of about 70 nanometers and a length of 2-4 micrometers. Different from Example 1, the product obtained in Example 2 exhibits a sword-shaped structure, and its scanning electron microscope photo is shown in FIG. 4 .

Embodiment 3

[0020] 0.87 g of zinc chloride (ZnCl 2 ) and 2.56 grams of 85% hydrazine hydrate (N 2 h 4 ·H 2 0) Put into 160 ml of deionized water respectively, and after magnetically stirring for 10 minutes, put the above prepared solution into the polytetrafluoroethylene lining of the autoclave, the volume of the lining is 200 ml, that is, the filling degree is 90% . The solution was treated at 120° C. for 3 hours, and the treated solution was centrifuged and dried to obtain ZnO nanorods with a diameter of about 70 nanometers and a length of 2-4 micrometers. Different from Examples 1 and 2, the surface of the product obtained in Example 3 is relatively rough, and its scanning electron microscope photo is shown in FIG. 5 .

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Abstract

This invention involves a preparation method for zinc oxide nanorods. In this method, hydrazine hydrate replaces sodium hydroxide or ammonia as an alkaline mineralizer, and zinc oxide nanorods are prepared by hydrothermal synthesis rapidly and simply. Compared with the conventional hydrothermal synthesis method with sodium hydroxide or ammonia as mineralizer, this method can control the size and morphology of zinc oxide by making use of the alkaline hydrazine hydrate and its coordination compound formed with zinc. Zinc oxide nanorods can be prepared quickly in the absence of any other surfactant and complexing agent.

Description

technical field [0001] The invention relates to a preparation method of zinc oxide nanorods. Background technique [0002] Zinc oxide (ZnO) is an important wide-bandgap semiconductor material with a bandgap of 3.37eV at room temperature. Compared with GaN, a wide-bandgap semiconductor, ZnO has a higher blue light luminous efficiency. As a functional material with a wide range of uses, zinc oxide has been widely used in important industrial technology applications such as optoelectronic devices, gas sensors, pressure sensitive devices, catalysts, coatings, and antibacterials. When the grain size of ZnO is reduced to the nanometer level, its surface electronic structure and crystal structure change significantly, resulting in surface effects, small size effects, quantum size effects, and dielectric confinement effects that macroscopic bulk materials do not have. Therefore, ZnO nanostructures have become a major focus in the field of nanotechnology research. [0003] One-dim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/02B82B3/00
Inventor 祝洪良于桂霞姚奎鸿朱鲁明
Owner ZHEJIANG SCI-TECH UNIV
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