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Hydrothermal preparation method of Ni3/S2 nanotube composite membrane photo-anode

A nanotube composite and photoanode technology, which is applied in the field of preparing nanotube composite film photoanodes by hydrothermal method, can solve the problems that the anti-corrosion performance is difficult to meet the requirements, and it is difficult to achieve anti-corrosion performance, so as to achieve good cathodic protection effect and enhance Good photocatalytic performance and stability

Active Publication Date: 2018-11-16
INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it is still difficult to achieve the anti-corrosion performance required for normal production in relatively harsh environments, such as its application in offshore oil and gas fields, deep water pumps, offshore drilling platforms, warships, etc., its anti-corrosion performance is difficult to meet the requirements

Method used

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  • Hydrothermal preparation method of Ni3/S2 nanotube composite membrane photo-anode
  • Hydrothermal preparation method of Ni3/S2 nanotube composite membrane photo-anode
  • Hydrothermal preparation method of Ni3/S2 nanotube composite membrane photo-anode

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Embodiment 1

[0041] Ni 3 S 2 / TiO 2 The method for composite film photoanode, comprises the following steps:

[0042] A titanium sheet with a size of 50*15*0.1mm was cut from a titanium foil with a purity of more than 99.9% as the substrate, cleaned ultrasonically in deionized water, absolute ethanol and deionized water in sequence, and dried in the air for use.

[0043] Put the cleaned titanium sheet into the polishing solution and polish it for 20 seconds. The preparation of the polishing solution is: first add 0.45gNH 4 F dissolved in 2.5mL H 2 O, then add 6mL H 2 o 2 and 6mL HNO 3 , that is, the polishing liquid, after the polishing is completed, wash the titanium sheet with a large amount of distilled water and dry it for later use.

[0044] Weigh 0.557g NH 4 Dissolve F in 10.0mL deionized water, add 100mL ethylene glycol and stir well as the working electrolyte. At room temperature, the treated titanium substrate was used as the anode, and the platinum sheet was used as the ...

Embodiment 2

[0055] Preparation of Ni by hydrothermal method 3 S 2 / TiO 2 The method for composite film photoanode, comprises the following steps:

[0056] A titanium sheet with a size of 50*15*0.1mm was cut from a titanium foil with a purity of more than 99.9% as the substrate, cleaned ultrasonically in deionized water, absolute ethanol and deionized water in sequence, and dried in the air for use.

[0057] Put the cleaned titanium sheet into the polishing solution and polish it for 20 seconds. The preparation of the polishing solution is: first add 0.45gNH 4 F dissolved in 2.5mL H 2 O, then add 6mL H 2 o 2 and 6mL HNO 3 , that is, the polishing liquid, after the polishing is completed, wash the titanium sheet with a large amount of distilled water and dry it for later use.

[0058] Weigh 0.557g NH 4 Dissolve F in 10.0mL deionized water, add 100mL ethylene glycol and stir well as the working electrolyte. At room temperature, the treated titanium substrate was used as the anode, a...

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Abstract

The invention relates to a composite membrane photo-anode for photo-induced cathodic protection, and especially relates to a hydrothermal preparation method of a Ni3S2 / TiO2 nanotube composite membranephoto-anode. The method comprises following steps: (1) preparing a TiO2 nanotube array membrane precursor: adopting an anodic oxidation method, taking a titanium foil as the work electrode and a platinum foil as the counter electrode, carrying out oxidation in work electrolyte under a constant voltage, and burning to form a TiO2 nanotube array membrane precursor on the platinum foil substrate, wherein the nanotube diameters are uniform, the nanotube wall thicknesses are even, and the morphology of the precursor is regular; and (2) preparing a Ni3S2 / TiO2 composite membrane: under the action ofa sulfur source and a nickel source, subjecting the obtained TiO2 nanotube precursor to a hydrothermal treatment so as to load Ni3S2 onto the TiO2 nanotubes to obtain the Ni3S2 / TiO2 composite membrane photo-anode. The obtained composite membrane has a good photo-induced cathodic protection effect, moreover, the operation is simple and easy to perform, the method is safe and reliable, and the properties of the photo-anode are stable.

Description

technical field [0001] The invention relates to a composite film photoanode for photogenerated cathodic protection, in particular to a nanotube composite film photoanode (Ni 3 S 2 / TiO 2 Composite film photoanode) method. Background technique [0002] Corrosion is the destruction of materials due to their interaction with the surrounding environment. With the development of material science and technology, people have more and more urgent demands on the reliability and long-term performance of materials, and corrosion is undoubtedly one of the most important factors. Corrosion of a connection line on an integrated circuit can lead to the collapse of a large computer system; a partial perforation on a storage tank can cause the leakage of nuclear waste liquid. To some extent, the impact on the economy, resources, and environment caused by material corrosion is much greater than the loss of the material itself. Commonly used anti-corrosion methods include the following: c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F13/12
CPCC23F13/12
Inventor 王秀通南有博李鑫冉宁晓波于腾黄彦良
Owner INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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