Prepn process of periodic nanometer titania line

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 long constant temperature time, inconvenient operation, large amount of medicine and solvent, etc., and achieves a simple and easy preparation method. , the effect of low production cost

Inactive Publication Date: 2007-06-06
EAST CHINA NORMAL UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, the amount of medicine and solvent required in this method is large, the preparation is more complicated, and the constant temperature time in the preparation process is also longer, so the operation is inconvenient, and the prepared nanowires are messy and disorderly.

Method used

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  • Prepn process of periodic nanometer titania line
  • Prepn process of periodic nanometer titania line
  • Prepn process of periodic nanometer titania line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In the first step, the size of the aluminum sheet is 20mm*20mm, annealed at 500°C for 5 hours, the polishing temperature is 4°C, and the polishing time is 40 seconds; in the second step, the aluminum sheet treated in the first step is placed in a concentration In the phosphoric acid solution of 0.1mol / L, at 0°C, carry out the first anodic oxidation, the current of anodic oxidation is 10mA, and the anodic oxidation time is 3 hours; in the fourth step, the grating density and grating period are respectively 1200 mm line and 0.833 micron reflective grating; in the sixth step, the composition of liquid A is the volume ratio=1:4:1 of tetrabutyl titanate 5mL, absolute ethanol 20mL and glacial acetic acid 5mL, and the composition of liquid B The volume ratio of absolute ethanol 10mL and deionized water 1mL=10:1; in the seventh step, adjust the pH value of the sol to 2; in the eighth step, put the template obtained in the fifth step in boiling absolute ethanol Boil for 8 minute...

Embodiment 2

[0033] In the first step, the size of the aluminum sheet is 20mm*20mm, annealed at 560°C for 5 hours, the polishing temperature is 7°C, and the polishing time is 30 seconds; in the second step, the aluminum sheet treated in the first step is placed in a concentration In the phosphoric acid solution of 0.3mol / L, at 4°C, carry out the first anodic oxidation, the anodic oxidation current is 5.5mA, and the anodic oxidation time is 5.5 hours; in the fourth step, the grating density and grating period are respectively Reflective grating with 1200 lines per millimeter and 0.833 micron; in the sixth step, the composition of liquid A is the volume ratio=1:4:1 of tetrabutyl titanate 5mL, absolute ethanol 20mL and glacial acetic acid 5mL, and the volume ratio of liquid B The composition is the volume ratio of 10 mL of absolute ethanol and 1 mL of deionized water = 10:1; in the seventh step, adjust the pH value of the sol to 3; in the eighth step, put the template obtained in the fifth ste...

Embodiment 3

[0035] In the first step, the size of the aluminum sheet is 20mm*20mm, annealed at 620°C for 5 hours, the polishing temperature is 10°C, and the polishing time is 20 seconds; in the second step, the aluminum sheet treated in the first step is placed in a concentration In the phosphoric acid solution of 0.5mol / L, at 8°C, carry out the first anodic oxidation, the anodic oxidation current is 1mA, and the anodic oxidation time is 8 hours; in the fourth step, the grating density and grating period are respectively 1200 mm line and 0.833 micron reflective grating; in the sixth step, the composition of liquid A is the volume ratio=1:4:1 of tetrabutyl titanate 5mL, absolute ethanol 20mL and glacial acetic acid 5mL, and the composition of liquid B The volume ratio of absolute ethanol 10mL and deionized water 1mL=10:1; in the seventh step, adjust the pH value of the sol to 4; in the eighth step, put the template obtained in the fifth step in boiling absolute ethanol Boil for 12 minutes,...

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Abstract

The present invention relates to preparation process of periodical nanometer titania line, is especially template process of preparing periodical nanometer titania line, and belongs to the field of nanometer material preparing technology. The present invention prepares periodical nanometer titania line by using alumina with periodical high ordered micropore array as template and through a sol-gel process. The present invention is superior to background technology in that the template process can obtain periodical nanometer titania line product with effectively controlled periodical distribution and size of nanometer titania lines, is simple, feasible, low in cost and pollution-free.

Description

technical field [0001] The invention relates to a method for preparing periodic titanium dioxide nanowires, to be precise, relates to a method for preparing periodic titanium dioxide nanowires by template method, and belongs to the technical field of nanomaterial preparation. Background technique [0002] Nanoscale titanium dioxide has the advantages of suitable band gap, high catalytic activity, non-toxicity, and good stability. It has broad application prospects in photocatalysis, ultraviolet shielding, and photoelectric conversion. It has attracted much attention and has become a A research hotspot in the world. [0003] At present, there are many studies on titanium dioxide nanopowders, but there are quite few studies on titanium dioxide nanowires, especially the rapid detection of periodic titanium dioxide nanowires. Due to the small size of titanium dioxide nanoparticles and the dispersed particle size distribution, titanium dioxide powder pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/053B82B3/00
Inventor 侯士丽茅惠兵王基庆朱自强俞建国
Owner EAST CHINA NORMAL UNIV
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