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Titanium oxide nano wire film on metallic titanium surface and manufacture method thereof

A technology of titanium oxide and metal titanium, which is applied in the coating process of metal materials, etc., to achieve the effects of increased specific surface area, abundant production raw materials, and low cost

Inactive Publication Date: 2009-12-02
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method does not involve the preparation of titania nanowire networks or titanate nanowires.

Method used

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  • Titanium oxide nano wire film on metallic titanium surface and manufacture method thereof
  • Titanium oxide nano wire film on metallic titanium surface and manufacture method thereof
  • Titanium oxide nano wire film on metallic titanium surface and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1) Place the pre-washed 1×1cm 2 The metal titanium sheet was etched with 5wt% oxalic acid solution at 100° C. for two hours, ultrasonically cleaned with deionized water, and dried to obtain a clean surface titanium metal sheet.

[0027] 2) The titanium sheet was immersed in an oxidation solution of 1ml NaOH (10M) and 1ml hydrogen peroxide (30%), placed in a closed reaction kettle and reacted in an oven at 80°C for 24 hours. After the reaction, the titanate nanowire network film on the titanium base is obtained, and the nanowire network structure formed on the surface is as follows: figure 1 and figure 2 As shown, it can be seen that nanowires with a diameter of about 40 nm are intertwined and intertwined to form pores of different sizes.

[0028] 3) Wash the titanium sheet of the titanate nanowire film formed above with deionized water, soak it in 0.1M hydrochloric acid for 0.5 hours, then rinse it with deionized water until neutral, perform the same operation three ...

Embodiment 2

[0032] 1) Place the pre-washed 2×4cm 2 The titanium metal sheet was etched in a mixture of hydrofluoric acid: nitric acid: deionized water with a volume ratio of 1:3:6 for 1 minute, ultrasonically cleaned with deionized water, and dried to obtain a titanium metal sheet with a clean surface.

[0033] 2) The titanium sheet was immersed in an oxidation solution of 1.5ml NaOH (10M) and 15ml hydrogen peroxide (30%), placed in a closed reaction kettle and reacted in an oven at 80°C for 6 hours. After the reaction, the titanate nanowire network film on the titanium base is obtained, and the nanowire network structure formed on the surface is as follows: Figure 4 As shown, nanowires with a diameter of about 30-50 nm are intertwined and intertwined to form pores of a certain size.

[0034]3) Wash the titanium sheet of the titanate nanowire film formed above with deionized water, soak it in 0.05M hydrochloric acid for 1 hour, then rinse it with deionized water until it is neutral, per...

Embodiment 3

[0038] 1) Place the pre-washed 2×2cm 2 The metal titanium sheet was etched with 5wt% oxalic acid solution at 100°C for two hours, ultrasonically cleaned with deionized water, and dried to obtain a clean surface titanium sheet

[0039] 2) The titanium sheet was immersed in an oxidation solution of 2ml NaOH (10M) and 10ml hydrogen peroxide (30%), placed in a closed reaction kettle and reacted in an oven at 80°C for 12 hours. After the reaction, the titanate nanowire network film on the titanium base is obtained, and the nanowire network structure formed on the surface is as follows: Figure 6 shown.

[0040] 3) Wash the titanium sheet of the titanate nanowire film formed above with deionized water, soak it in 0.1M hydrochloric acid for 2 hours, then rinse it with deionized water until neutral, and dry it in an oven at 80°C. A titanate nanowire film on the surface of metal titanium is obtained.

[0041] 4) Calcining the metal titanium sheet with the titanate nanowire film form...

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Abstract

The invention relates to a metal titanium surface titanium oxide nano-wire film and a preparation method thereof. The component of the prepared film can be titanate, titanic acid or titanium dioxide, the diameter of each nano-wire is between 10 nm to 100 nm, the nano-wires are interlaced and wound to form a great amount of large holes and mesopore networks, and the pore space is between 20 nm to 500 nm. The preparation method comprises the following main steps: firstly, pickling cleaning is performed to the metal titanium surface; secondly, a mixed oxidizing solution of strong alkali and oxydol is used to oxidize the metal titanium surface and form the titanate nano-wire film; thirdly, acid soaking is adopted to exchange alkaline metal ions to form the titanic acid nano-wire film; and fourthly, the titanium dioxide nano-wire film is formed through high temperature roasting. The invention has the advantages that the preparation method of the metal titanium surface titanium oxide nano-wire film is simple, the cost is low, the method is suitable for large-scale industrial production, and the prepared titanium oxide has broad application prospect in photochemical catalysis related field and the electrochemistry sensing related field.

Description

technical field [0001] The invention relates to a titanium oxide nanowire film on the surface of metallic titanium and a preparation method thereof, in particular to a titanium dioxide nanowire network film material with photocatalytic activity and a preparation method thereof, belonging to the field of inorganic nanometer materials. Background technique [0002] The photocatalytic oxidation technology represented by titanium dioxide is a new type of pollution control technology, which has outstanding features such as low energy consumption, mild reaction conditions, easy operation, and no secondary pollution, and has the potential to directly use solar energy. It is even more important today when the problem is getting worse. Although a large number of research reports have shown that typical refractory organic pollutants in water bodies, such as dyes, surfactants, organic halides, pesticides, cyanides, phenols, PCBs, and PAHs, can be effectively Photocatalytic degradation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F17/00C23F1/26C23C22/64
Inventor 蔡伟民龙明策吴亚惠
Owner SHANGHAI JIAOTONG UNIV
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