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Method for synthesizing flower-like nanostructure composed of zinc oxide nano-rod

A zinc oxide nanorod and flower-like structure technology, applied in nanostructure manufacturing, zinc oxide/zinc hydroxide, nanotechnology, etc., can solve problems such as difficult large-scale production, and achieve the effect of uniform size

Inactive Publication Date: 2009-04-15
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the two gas phase transfer methods of noble metal catalysis and high-temperature vaporization can synthesize controllable one-dimensional ZnO nanostructures, the reaction needs to be carried out at high temperatures above 1000 °C, making it difficult to produce on a large scale.

Method used

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  • Method for synthesizing flower-like nanostructure composed of zinc oxide nano-rod
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  • Method for synthesizing flower-like nanostructure composed of zinc oxide nano-rod

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Embodiment 1

[0022] Embodiment 1: 2 grams of zinc acetate were dissolved in water, and 0.5 grams of ethyl naphthol was added to water, and the two were mixed and stirred. 30 ml of 2M NaOH solution was added dropwise, and ultrasonic treatment was performed for 10 minutes. The precipitate and the solution were added to a stainless steel reaction kettle lined with polytetrafluoroethylene, and the temperature was kept at 120°C for 12h. After cooling, filter or centrifugally wash, and finally wash with absolute ethanol to obtain powder; dry the powder at 60°C to obtain zinc oxide nanopowder.

Embodiment 2

[0023] Example 2: 2 grams of zinc acetate was dissolved in water, and 0.5 grams of ethyl naphthol was added to the water, and the two were mixed and stirred. 30 ml of 2M NaOH solution was added dropwise, and ultrasonic treatment was performed for 10 minutes. Add the precipitate and the solution into a microwave reactor lined with polytetrafluoroethylene, and keep the temperature at 120°C for 0.5h. After cooling, filter or centrifugally wash, and finally wash with absolute ethanol to obtain powder; dry the powder at 60°C to obtain zinc oxide nanopowder.

Embodiment 3

[0024] Embodiment 3: change the ethyl naphthol of embodiment 1 into p-nitrobenzoic acid, and all the other processes and consumption are with embodiment 1.

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Abstract

The invention discloses a method for synthesizing a flower-shaped nanometer structure consisting of zinc oxide nanometer rods, which belongs to the field of inorganic non-metal materials, and comprises the steps: soluble zinc salt such as zinc acetate is dissolved in water and added with an appropriate amount of paranitrobenzoic acid or ethyl naphthol to be taken as an auxiliary agent, NaOH solution is used for regulating the pH value to be 12-14, and precipitate and the solution are heated in a high-pressure autoclave for the growth of the nanometer zinc oxide. The heating mode can be microwave heating or resistance wire heating, and the outgrown nanometer structure is the flower-shaped nanometer structure consisting of the nanometer rods. The method has the advantages of simple technology and low cost, and uses the paranitrobenzoic acid or ethyl naphthol as the auxiliary agent for controlling the appearance and the size of zinc oxide crystal.

Description

technical field [0001] The invention relates to a preparation method of a flower-like nanostructure composed of zinc oxide nanorods, belonging to the field of inorganic non-metallic materials. Background technique [0002] ZnO is a new type of II-VI direct wide bandgap semiconductor material, which has high electrical conductivity, thermal conductivity, chemical stability and good ultraviolet absorption performance. It is widely used in rubber, ceramics, daily chemicals, coatings, etc. It can be used to make gas sensors, ultraviolet shielding materials, transformers and various optical devices. Its band gap at room temperature is 3.37eV, corresponding to the wavelength of ultraviolet light, and it is expected to realize visible and ultraviolet fluorescence and laser emission, and then develop short-wavelength light-emitting diodes and lasers. Since the optically pumped lasing emission of microcrystalline thin films (with nanostructures) was observed at room temperature, ZnO...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B82B3/00
Inventor 王吉德宿新泰孙庆军骆建敏付军怀党富民衡秋丽
Owner XINJIANG UNIVERSITY
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