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Method for microwave preparation of titania nanometer tube

A technology of titanium dioxide and nanotubes, which is applied in the field of preparation in the field of nanotechnology, can solve problems such as titanium dioxide nanotubes that have not yet been seen, and achieve the effects of promoting development and application, wide application range, and strong controllability

Inactive Publication Date: 2007-05-23
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no literature report on the preparation of titanium dioxide nanotubes by microwave.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Weigh 0.10 g of anatase titanium dioxide nanoparticles treated at 500 ° C, put them into a polytetrafluoroethylene reaction kettle, then add 50 ml of 8 mol / L sodium hydroxide solution, ultrasonicate for 10 minutes in a 2 GHz ultrasonic reactor, and then Pack into a microwave reactor with a reflux device;

[0016] The microwave power was adjusted to 195W, the reaction time was 70 minutes, and the microwave reactor was started to react. After the reaction is over, pour the reaction liquid into the beaker, cool it for a while, and then ultrasonic for 10 minutes, use a sand core funnel to filter, wash with deionized water until neutral;

[0017] After drying, take out the sample and put it in a vacuum drying oven, adjust the temperature to 90°C, pump it to a vacuum with a vacuum pump, and then keep it warm for 12 hours. After drying, take out the dried product, grind it with an agate mortar and sieve it through a 100-mesh sieve to obtain the product. The titanium dioxide n...

Embodiment 2

[0019] Weigh 0.25g of anatase-type titanium dioxide nanoparticles treated at 500°C, put them into a polytetrafluoroethylene reaction kettle, then add 50ml of 10mol / L sodium hydroxide solution, ultrasonicate for 10 minutes in a 2GHz ultrasonic reactor, and then Pack into a microwave reactor with a reflux device;

[0020] The microwave power was adjusted to 195W, the reaction time was 70 minutes, and the microwave reactor was started to react. After the reaction is over, pour the reaction liquid into the beaker, cool it for a while, and then ultrasonic for 10 minutes, use a sand core funnel to filter, wash with deionized water until neutral;

[0021] After drying, take out the sample and put it in a vacuum drying oven, adjust the temperature to 90°C, pump it to a vacuum with a vacuum pump, and then keep it warm for 12 hours. After drying, take out the dried product, grind it with an agate mortar and sieve it through a 100-mesh sieve to obtain the product. The titanium dioxide n...

Embodiment 3

[0023] Weigh 0.50 g of anatase titanium dioxide nanoparticles treated at 500 ° C, put them into a polytetrafluoroethylene reaction kettle, then add 50 ml of 12 mol / L sodium hydroxide solution, and ultrasonicate for 10 minutes in a 2 GHz ultrasonic reactor, then Pack into a microwave reactor with a reflux device;

[0024] The microwave power was adjusted to 195W, the reaction time was 70 minutes, and the microwave reactor was started to react. After the reaction is over, pour the reaction liquid into the beaker, cool it for a while, and then ultrasonic for 10 minutes, use a sand core funnel to filter, wash with deionized water until neutral;

[0025] After drying, take out the sample and put it in a vacuum drying oven, adjust the temperature to 90°C, pump it to a vacuum with a vacuum pump, and then keep it warm for 12 hours. After drying, take out the dried product, grind it with an agate mortar and sieve it through a 100-mesh sieve to obtain the product. Observation under the...

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Abstract

Disclosed is a method for microwave preparation of titania nanometer tube belonging to the field of nano technology, which comprises utilizing microwave heating, using titanium dioxide nano particles as raw material, weighing the raw material and charging into sodium-hydroxide solution, reacting in the microwave reactor, ultrasonic processing, scouring by deionized water, filtering by suction, and finally vacuum drying.

Description

technical field [0001] The invention relates to a preparation method in the field of nanotechnology, in particular to a method for preparing titanium dioxide nanotubes by microwave. Background technique [0002] Titanium dioxide nanoparticles have been widely used in solar energy storage and utilization, photoelectric conversion, photochromic and photocatalysis due to their advantages of low cost, non-toxicity and stable photochemical properties. Titanium dioxide nanotube is a one-dimensional nanotube material with a size in the nanoscale range. It has a more special tubular structure than nanopowder particles, so that its quantum effect has more structural characteristics. It is used to prepare one-dimensional quantum wires. Or as a templating agent to make nanoparticle wires of other components, making it more useful. The preparation methods of titanium dioxide nanotubes include template synthesis method, hydrothermal synthesis method, sol-gel method, chemical vapor depos...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/04B82B3/00
Inventor 吴省蒋淇忠马紫峰杨俊鹏上官文峰
Owner SHANGHAI JIAOTONG UNIV
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