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Titanium dioxide nano thread, belt and tube block array and preparation method thereof

A titanium dioxide and nanowire technology, which is applied in the directions of titanium dioxide, nanostructure manufacturing, titanium oxide/hydroxide, etc., can solve the problems of single nanotube array, complex preparation process and high equipment requirements, and achieves good process repeatability and simple equipment. , The effect of stable product quality

Inactive Publication Date: 2007-09-19
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation process of the first method is complicated, and the prepared titanium dioxide nanotubes exist in the form of powder, and must be processed by a special process when used; the second method requires high equipment, and the prepared titanium dioxide also exists in the form of powder ; the third method can only prepare a single nanotube array

Method used

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  • Titanium dioxide nano thread, belt and tube block array and preparation method thereof
  • Titanium dioxide nano thread, belt and tube block array and preparation method thereof
  • Titanium dioxide nano thread, belt and tube block array and preparation method thereof

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Effect test

Embodiment 1

[0019] Titanium dioxide nanowires, ribbons, and tube block arrays of 10mm×10mm were prepared with high-purity titanium foil.

[0020] The first step, the preparation of the substrate

[0021] Cut the high-purity titanium foil into 10mm×10mm sheets, seal the back with epoxy resin, degrease with acetone and ethanol in sequence, clean with deionized water, and then put hydrogen with a volume ratio of 1:1:2. Carry out chemical polishing in the mixed solution of hydrofluoric acid, nitric acid and deionized water, then wash with ethanol and deionized water respectively, and finally blow dry with nitrogen, and set aside;

[0022] The second step, preparation of titanium dioxide nanowires, ribbons, and tube block arrays

[0023] The high-purity titanium foil prepared in the first step is used as the anode, and the platinum sheet is used as the cathode, and they are placed in the reactor upright. The distance between the two poles should be 50mm, and a concentration of 0.25wt% fluorid...

Embodiment 2

[0029] Titanium dioxide nanowires, ribbons, and tube block arrays of 10mm×10mm were prepared with high-purity titanium foil.

[0030] The first step, the preparation of the substrate

[0031] Cut the high-purity titanium foil into 10mm×10mm sheets, seal the back with epoxy resin, degrease with acetone and ethanol in sequence, clean with deionized water, and then put hydrogen with a volume ratio of 1:1:2. Carry out chemical polishing in the mixed solution of hydrofluoric acid, nitric acid and deionized water, then wash with ethanol and deionized water respectively, and finally blow dry with nitrogen, and set aside;

[0032] The second step, preparation of titanium dioxide nanowires, ribbons, and tube block arrays

[0033] The high-purity titanium foil prepared in the first step is used as the anode, and the platinum sheet is used as the cathode. They are placed in the reactor upright. The distance between the two poles should be 50mm, and a concentration of 0.25wt% fluoride T...

Embodiment 3

[0039] Titanium dioxide nanowires, ribbons, and tube block arrays of 10mm×10mm were prepared with high-purity titanium foil.

[0040] The first step, the preparation of the substrate

[0041] Cut the high-purity titanium foil into 10mm×10mm sheets, seal the back with epoxy resin, degrease with acetone and ethanol in sequence, clean with deionized water, and then put hydrogen with a volume ratio of 1:1:2. Carry out chemical polishing in the mixed solution of hydrofluoric acid, nitric acid and deionized water, then wash with ethanol and deionized water respectively, and finally blow dry with nitrogen, and set aside;

[0042] The second step, preparation of titanium dioxide nanowires, ribbons, and tube block arrays

[0043] The high-purity titanium foil prepared in the first step is used as the anode, and the platinum sheet is used as the cathode, and they are placed in the reactor upright. The distance between the two poles should be 50mm, and a concentration of 0.25wt% fluorid...

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Abstract

The present invention provides a titanium dioxide nanometer thread, strip and tube block array, and a preparation method of the same, which relates to a nanometer material and a preparation method of the same. A high purity titanium foil serves as a substrate; a mixture solution of ethylene glycol and fluorination ammonification with a content of 0.1~0.5 wt%; a titanium dioxide nanometer thread, strip and pipe block array, which has a nanometer thread, strip blended fasciculation substance of 1~20 micron at the upper end and a regular nanometer tube array at the lower part, is formed vertically at the substrate by constant pressure anodisation. The preparation method comprises the steps of that: the substrate serves as the anode, the platinum serves as the cathode, the distance between the anode and the cathode is 10~50 mm, the voltage is 10~60 V, the reaction time is 30~3000 min; the obtained product is roasted for 1~3 hours at 240~600 DEG C, and is cooled in the furnace, thereby the titanium dioxide nanometer thread, strip and tube block array is obtained. The method has a simple equipment, an excellent repetitiveness for technology, a steady quality of product, and can be used for the fields of photocatalysis, photolysis water, solar cell and spinning electron.

Description

1. Technical field [0001] The invention relates to a block array of titanium dioxide nanowires, strips, and tubes based on high-purity titanium foil, an electrochemical preparation method thereof, and a process for internal doping (including nitrogen, carbon) and surface modification, in particular to The invention relates to a block array of titanium dioxide nanowires, strips and tubes perpendicular to the surface of high-purity titanium foil, which belongs to the technical field of preparation of inorganic materials. 2. Background technology [0002] Titanium dioxide is an important semiconductor material with special physical and chemical properties, and has broad application prospects in the fields of batteries, photocatalysis, photolysis of water, photodegradation of organic matter, and photochromic windows. Titanium dioxide-based technology may provide a good way to solve some key problems in human development (such as environmental purification, solar energy utilizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/047B82B1/00B82B3/00
Inventor 陶杰陶海军王玲
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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