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Preparation method of titanium-base Ti4O7 electrode

A technology of titanium suboxide and titanium dioxide, which is applied in the field of electrochemistry, can solve problems such as low process stability, difficult process control, and poor uniformity, and achieve high process stability, high electrochemical oxidation activity, and good uniformity.

Pending Publication Date: 2020-03-31
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Preparation of Ti by prior art 4 o 7 There are many process steps of the electrode, the uniformity is poor, and the process is difficult to control, and the process stability is low

Method used

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  • Preparation method of titanium-base Ti4O7 electrode
  • Preparation method of titanium-base Ti4O7 electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] After the titanium sheet is cut, it is polished on sandpaper for 15 minutes to remove dirt and oxides on the surface of the titanium sheet. Afterwards, the titanium sheet was ultrasonically cleaned in absolute ethanol for 30 min, and then the titanium sheet was vacuum-dried at 60° C. for 2 h.

[0022] Preparation of TiO on the surface of titanium sheet by direct current sputtering 2 layer. Put the cleaned titanium sheet on the anode of the DC sputtering device, and the cathode is pure titanium, vacuumize to 5Pa with a mechanical vacuum pump, and then vacuumize to 10 Pa with a molecular pump. -4 Pa. Then heat the anode titanium sheet to 350°C, pass argon gas into the device, turn on the power to clean the cathode pure titanium for 15 minutes, and remove the oxide on the surface of the cathode pure titanium. Oxygen is introduced into the device, the flow ratio of oxygen and argon is 1:16, the air pressure is adjusted to 0.8Pa, the preparation power is 120W, and the pre...

Embodiment 2

[0029] After the titanium sheet is cut, it is polished on sandpaper for 15 minutes to remove dirt and oxides on the surface of the titanium sheet. Afterwards, the titanium sheet was ultrasonically cleaned in absolute ethanol for 30 min, and then the titanium sheet was vacuum-dried at 60° C. for 2 h.

[0030] Preparation of TiO on the surface of titanium sheet by DC sputtering method 2 layer. Put the cleaned titanium sheet on the anode of the DC sputtering device, and the cathode is pure titanium, vacuumize to 5Pa with a mechanical vacuum pump, and then vacuumize to 10 Pa with a molecular pump. -4 Pa. Then heat the anode titanium piece to 360°C, pass argon gas into the device, turn on the power to clean the cathode pure titanium for 15 minutes, and remove the oxide on the surface of the cathode pure titanium. Oxygen is introduced into the device, the flow ratio of oxygen and argon is 1:19, the air pressure is adjusted to 0.9Pa, the preparation power is 110W, and the preparat...

Embodiment 3

[0037] After the titanium sheet is cut, it is polished on sandpaper for 15 minutes to remove dirt and oxides on the surface of the titanium sheet. Afterwards, the titanium sheet was ultrasonically cleaned in absolute ethanol for 30 min, and then the titanium sheet was vacuum-dried at 60° C. for 2 h.

[0038] Preparation of TiO on the surface of titanium sheet by direct current sputtering 2 layer. Put the cleaned titanium sheet on the anode of the DC sputtering device, and the cathode is pure titanium, vacuumize to 5Pa with a mechanical vacuum pump, and then vacuumize to 10 Pa with a molecular pump. -4 Pa. Then heat the anode titanium piece to 340°C, pass argon gas into the device, turn on the power to clean the cathode pure titanium for 15 minutes, and remove the oxide on the surface of the cathode pure titanium. Oxygen is introduced into the device, the flow ratio of oxygen and argon is 1:13, the air pressure is adjusted to 0.7Pa, the preparation power is 130W, the prepara...

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Abstract

A preparation method of titanium-base Ti4O7 electrode includes: preparing a TiO2 layer on a titanium substrate through sputtering and reducing the TiO2 layer into a Ti4O7 layer to obtain the Ti4O7 electrode. The method includes: 1) surface cleaning of a titanium sheet; 2) preparation of the titanium-base TiO2 layer electrode; 3) preparation of the titanium-base Ti4O7 layer electrode. In the method, the process of preparing the Ti4O7 electrode is simple in steps and easy to carry out. The Ti4O7 layer has good uniformity. Through regulation on the process parameters, the preparation method can be controlled, is high in stability and has good repeatability. By simulative degradation on organic waste water for testing the electrochemical oxidation activity of the titanium-base Ti4O7 electrode,the result shows that the titanium-base Ti4O7 electrode has a high electrochemical oxidation activity.

Description

technical field [0001] The invention relates to a method for preparing a titanium-based titanium suboxide electrode, which belongs to the technical field of electrochemistry. Background technique [0002] Sewage from the printing and dyeing industry and the paper industry contains a large amount of organic matter, which is difficult to degrade under natural conditions, and the direct discharge of organic sewage will seriously damage the ecological environment. The treatment of organic sewage needs to convert organic matter into inorganic matter or easily degradable matter. Efficient degradation of organic matter is the development trend of organic sewage treatment. [0003] Electrochemical oxidation is a method of treating organic sewage. It achieves the purpose of degrading organic matter by oxidizing and decomposing organic matter on the surface of the anode. The efficiency of electrochemical oxidation to degrade organic matter is related to the anode material. Suitable an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/467C02F101/30
CPCC02F1/46109C02F1/4672C02F2001/46133C02F2101/30
Inventor 杨学兵陈威郭炜
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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