Preparation method of titanium dioxide (TiO2) nanotube film on stainless steel surface

A stainless steel and nanotube technology, applied in surface reaction electrolytic coating, ion implantation plating, electrolytic coating, etc., can solve the problems of small specific surface area and high density

Inactive Publication Date: 2013-09-11
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the use of double-layer glow ion infiltration metallization technology to infiltrate Ti, in order to ensure the infiltration rate, the temperature of the stainless steel substrate is generally in the high temperature range of 800-1000 ℃, and the formed Ti film has high density, so that the TiO2 film has the disadvantages of high density and small specific surface area

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0014] (1) Put the 00Cr17Ni14Mo2 stainless steel substrate workpiece into a double-layer glow ion infiltration metal furnace, use a pure Ti plate as a sputtering target, and use argon as a working gas to infiltrate Ti. The process conditions for infiltration and plating of Ti are: the distance between the stainless steel workpiece and the sputtering target is 15 mm; the air pressure is 35 Pa; the sputtering target voltage is 1080 V; the stainless steel workpiece voltage is 520 V; the stainless steel workpiece temperature is 940 ℃; the infiltration time is 2 h.

[0015] (2) Use insulating glue to seal the surface of the stainless steel workpiece that is not infiltrated with Ti, and only expose the part coated with Ti film as the working surface. Then the stainless steel workpiece coated with Ti film was placed in 0.5 wt% HF electrolyte as anode, the Pt sheet was used as cathode, magnetic stirring was turned on, anodized at 25 V DC for 30 min at room temperature, and TiO was for...

Embodiment approach 2

[0018] (1) Put the 1Cr17 stainless steel substrate workpiece into a double-layer glow ion infiltration metal furnace, use a pure Ti plate as a sputtering target, and use argon as a working gas to infiltrate Ti. The process conditions for infiltration and plating of Ti are: the distance between the stainless steel workpiece and the sputtering target is 18 mm; the air pressure is 40 Pa; the sputtering target voltage is 1150 V; the stainless steel workpiece voltage is 580 V; the stainless steel workpiece temperature is 890 ℃; the infiltration time is 3 h.

[0019] (2) Use insulating glue to seal the surface of the stainless steel workpiece that is not infiltrated with Ti, and only expose the part coated with Ti film as the working surface. Then the stainless steel workpiece coated with Ti film was placed in 1.5 wt% HF electrolyte as anode, the Pt sheet was used as cathode, magnetic stirring was turned on, anodized at 20 V DC for 10 min at room temperature, and TiO was formed on th...

Embodiment approach 3

[0022](1) Put the 0Cr18Ni9 stainless steel substrate workpiece into a double-layer glow ion infiltration metal furnace, use a pure Ti plate as a sputtering target, and use argon as a working gas to infiltrate Ti. The process conditions for infiltration and plating of Ti are: the distance between the stainless steel workpiece and the sputtering target is 20 mm; the air pressure is 45 Pa; the sputtering target voltage is 1200 V; the stainless steel workpiece voltage is 580 V; the stainless steel workpiece temperature is 830 ℃; the infiltration time is 4 h.

[0023] (2) Use insulating glue to seal the surface of the stainless steel workpiece that is not infiltrated with Ti, and only expose the part coated with Ti film as the working surface. Then the stainless steel workpiece coated with Ti film was placed in 1.0 wt% HF electrolyte as anode, the Pt sheet was used as cathode, magnetic stirring was turned on, anodized at 20 V DC and room temperature for 20 min, and TiO was forme...

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Abstract

The invention discloses a preparation method of a titanium dioxide (TiO2) nanotube film on a stainless steel surface, belonging to the technical field of photocatalytic material preparation. The preparation method is characterized by being a method for preparing an anatase type TiO2 nanotube film with high film-based bonding strength on a stainless steel substrate, and comprises the following steps of: firstly, forming a Ti diffusion coating layer composed of a Ti diffusion layer in the substrate and a surface Ti film on the surface of the stainless steel substrate by a double blow plasma surface alloying technology; then, performing anode oxidation on the Ti film on the stainless steel surface in an HF electrolyte by taking a Pt sheet as a cathode to generate a TiO2 nanotube film; and finally, performing thermal treatment on the stainless steel workpiece in the air so as to generate an anatase type TiO2 nanotube film with high film-based bonding strength on the surface of the stainless steel substrate. According to the preparation method disclosed by the invention, the stainless steel after the surface modification of TiO2 nanotube film has good ultraviolet catalysis activity, and the application range of stainless steel in the photocatalysis field can be obviously expanded.

Description

technical field [0001] The invention discloses a method for preparing a titanium dioxide nanotube film on the surface of stainless steel, which belongs to the technical field of photocatalytic material preparation, and particularly relates to an anatase-type TiO with high film-base bonding strength prepared on a stainless steel substrate 2 nanotube film method. Background technique [0002] Stainless steel has the advantages of high mechanical strength, good corrosion resistance, and easy processing and forming. In addition to being used in heavy industry, stainless steel is also widely used in kitchen utensils, office equipment, medical equipment and other fields. TiO 2 It is an important photocatalytic material, which belongs to wide bandgap semiconductor, and can show good photocatalytic activity under the irradiation of ultraviolet light. If surface modification is performed on stainless steel, TiO is formed on the surface 2 The modified layer can make it have many n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F17/00C23C14/16C23C14/38C25D11/26
Inventor 李秀燕曹铃庞永峰王鹤峰唐宾
Owner TAIYUAN UNIV OF TECH
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