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Zinc oxide nano-wire and preparation method thereof

A zinc oxide nanowire and zinc oxide technology, which is applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, nanotechnology, etc., can solve the problems of complicated process and unfavorable mass production, and achieve simple raw materials, short heating and evaporation time, and added Raw materials and the effect of taking out finished products are simple and easy

Active Publication Date: 2014-01-22
刘景顺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In order to overcome the defects of the above-mentioned existing method that the process is complex and unfavorable for mass production, the present invention aims to provide a simple zinc oxide nanowire and a preparation method thereof, which can mass produce zinc oxide nanowire at low cost

Method used

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  • Zinc oxide nano-wire and preparation method thereof

Examples

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Embodiment 1

[0033] A preparation method of zinc oxide nanowires, the steps of the preparation method comprising:

[0034] 1) Mix zinc oxide and activated carbon powder evenly, the volume ratio of zinc oxide and activated carbon powder is 1:2 to 1:6;

[0035] 2) At a temperature of 800° C. to 1250° C., place the zinc oxide and activated carbon powder in a flowing mixed gas in a quartz tube or a corundum tube for evaporation treatment to obtain zinc oxide nanowires.

[0036] Further, the zinc oxide nanowire is a one-dimensional nanostructured zinc oxide with a diameter of 20 nm to 200 nm and a length of 5 μm to 50 μm.

[0037] Further, the mixed gas is formed by mixing oxygen and an inert gas, and the volume of the oxygen is 5% to 35% of the total volume of the inert gas and oxygen.

[0038] Further, the flow rate of the flowing mixed gas is 3 ml / min to 30 ml / min per square centimeter area.

[0039] Further, the time for the evaporation treatment is 10 min to 60 min.

[0040] Further, th...

Embodiment 2

[0042] This embodiment is a preferred solution based on the embodiment 1, and the parts that are the same as those in the embodiment 1 will not be repeated here.

[0043] according to figure 1 The structural form is assembled into a set of devices. The maximum temperature of the tube heating furnace is 1400 °C, the inner diameter of the quartz tube is 46 mm, the gas mixer adopts a glass bottle with three input and output heads, and the flow meter adopts a rotameter with a precision of 2.5%. , the inert gas uses industrial nitrogen. Heat the tubular heating furnace to 850°C and keep it warm, turn on the oxygen and nitrogen switches, adjust the flow rate of nitrogen to 6 ml / min per square centimeter, adjust the flow rate of oxygen to 1.8 ml / min per square centimeter, zinc oxide and activated carbon according to the volume ratio 1:2 for mixing, after mixing, put it into the quartz tube in the tubular heating furnace, and after 15 min, flocculent zinc oxide nanowires were obtaine...

Embodiment 3

[0045] This embodiment is another preferred solution based on the embodiment 1, and the parts that are the same as those in the embodiment 1 will not be repeated here.

[0046] according to figure 1 The structural form is assembled into a set of devices. The maximum temperature of the tube heating furnace is 1400 °C, the inner diameter of the quartz tube is 110 mm, the gas mixer adopts a glass bottle with three input and output heads, and the flow meter adopts a rotameter with a precision of 2.5%. , the inert gas uses industrial nitrogen. Heat the tubular heating furnace to 830°C and keep it warm, turn on the oxygen and nitrogen switches, adjust the flow rate of nitrogen to 11.6 ml / min per square centimeter, adjust the flow rate of oxygen to 3.4 ml / min per square centimeter, zinc oxide and activated carbon according to the volume ratio 1:2 for mixing, after mixing, put it into the quartz tube in the tubular heating furnace, and get flocculent zinc oxide nanowires in the colle...

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Abstract

The invention provides a zinc oxide nano-wire and a preparing method thereof. The preparation method comprises the following steps: mixing a zinc oxide particle and an active carbon particle according to a fixed proportion; putting an obtained mixture into a tubular furnace for heating and evaporation, wherein a heating temperature is 800 to 1250 DEG C, and evaporation time is 10 to 60 min; and introducing a flowing gas mixture of oxygen and inert gas in the process of evaporation, wherein the gas mixture contains 5 to 35% of oxygen, and the quantity of flow of the gas mixture is 3 to 30 ml / min per square centimeter. With the method, the zinc oxide nano-wire with a diameter of 20 to 200 nm and a length of 5 to 50 mu m can grow. The method is simple, easy to operate and applicable to industrial batch production.

Description

technical field [0001] The invention belongs to the field of preparation methods of ultrafine metal oxides, and in particular relates to a zinc oxide nanowire and a preparation method thereof. Background technique [0002] The well-known nanomaterials refer to materials with at least one dimension in the nanoscale range (1 nm-100 nm) or composed of them as basic units in three-dimensional space. Due to its impeccable superiority, nanomaterials have become a research hotspot all over the world. Its application has penetrated into various fields of human life and production, and has prompted many traditional industries to be improved. A nanowire refers to a material structure with a diameter in the nanoscale range and a length much larger than the nanoscale, and is usually called a one-dimensional nanostructure or nanofiber. [0003] Zinc oxide nanomaterials have strong surface effects and quantum effects, are structurally stable at high temperatures, and also have good elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02B82Y40/00B82Y30/00
Inventor 刘景顺
Owner 刘景顺