Method for preparing Nano tube of zirconium dioxide

A technology of zirconium dioxide and nanotubes, which is applied in the field of preparation of zirconium dioxide nanotubes, can solve the problems of poor uniformity of the tube wall of nanotubes, complex process, environmental pollution, etc. convenient effect

Inactive Publication Date: 2007-10-10
HEBEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to provide a preparation method of zirconia nanotubes, which is an anodic oxidation method, to solve the complex process, high cost, environmental pollution, The disadvantage of poor wall uniformity of nanotubes

Method used

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  • Method for preparing Nano tube of zirconium dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Mix formamide and glycerin at a volume ratio of 1:1, use the mixed solvent to prepare a sodium fluoride solution with a concentration of 0.5% by weight, put the sodium fluoride solution into the reaction vessel, use the zirconium sheet as the anode, and the platinum sheet as the cathode , the distance between the anode and the cathode is 1.5cm, and the anodic oxidation reaction is carried out at room temperature with 90V direct current, and zirconia nanotubes are formed on the surface of the zirconium sheet. As the reaction progresses, the zirconia nanotubes formed on the surface of the zirconium sheet continue to fall off. After the reaction, the zirconium dioxide nanotubes sinking to the bottom of the reaction vessel were separated, washed with water, and dried at 105° C. to obtain the zirconium dioxide nanotube product.

Embodiment 2

[0022] Mix formamide and ethylene glycol at a volume ratio of 2:1, use the mixed solvent to prepare a solution of 0.5% potassium fluoride and 0.5% ammonium fluoride by weight, and add the fluoride solution to the reaction vessel. The platinum sheet was used as the anode, and the platinum sheet was used as the cathode, the distance between the anode and the cathode was 1.5 cm, and the anodic oxidation reaction was carried out at room temperature with 30V direct current. After the reaction, the zirconium dioxide nanotubes sinking to the bottom of the reaction vessel were separated, washed with water, and dried at 105° C. to obtain the zirconium dioxide nanotube product.

Embodiment 3

[0024] Mix formamide and ethanol at a volume ratio of 3:1, use the mixed solvent to prepare an ammonium fluoride solution with a concentration of 1.5% by weight, put the ammonium fluoride solution into the reaction vessel, use the zirconium sheet as the anode, and the graphite sheet as the cathode , the distance between the anode and the cathode is 1.5cm, and the anodic oxidation reaction is carried out at room temperature with 10V direct current. After the reaction, the zirconium dioxide nanotubes sinking to the bottom of the reaction vessel were separated, washed with water, and dried at 105° C. to obtain the zirconium dioxide nanotube product.

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Abstract

This invention relates to a method for preparing ZrO2 nanotubes by anodic oxidation. The method comprises: mixing formamide and alcohol solvent at a volume ratio of (1-3):1 to obtain a mixed solvent, preparing 0.5-1.5 wt.% fluoride solution, introducing the fluoride solution into a reactor with Zr plate as the anode and Pt plate or graphite plate as the cathode, performing anodic oxidation under 10-90 V DC at room temperature to generate ZrO2 nanotubes on the Zr plate, falling off during the reaction, separating precipitated to the bottom of the reactor, washing with water, and drying at 105 deg.C to obtain ZrO2 nanotubes. The distance between the anode and the cathode is 1.5 cm. The method has such advantages as simple process, low cost, no pollution and uniform wall thickness of ZrO2 nanotubes.

Description

technical field [0001] The technical solution of the present invention belongs to oxides of zirconium, in particular, relates to a preparation method of zirconium dioxide nanotubes. Background technique [0002] Zirconia is the only metal oxide that is simultaneously acidic, basic, oxidizing, and reducing. It is a P-type semiconductor, easy to generate oxygen holes, and has very important scientific research value and application prospects in the fields of catalysts, catalyst carriers, and sensitive materials. [0003] The performance of zirconia is inseparable from its specific surface area and aggregation state. Due to the large specific surface area and specific structure of zirconia nanotubes, it has great application prospects in heterogeneous catalysis, adsorption, separation, and chemical sensors. In addition, zirconia nanotubes can be used as nanoreactors to synthesize nanocomposite structural materials with excellent optical, electrical, magnetic and catalytic pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G25/02B82B3/00
Inventor 赵建玲王西新李养贤徐荣清陶金亮
Owner HEBEI UNIV OF TECH
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