Titanium dioxide nanotube array film, preparation method thereof and photoelectric device

A technology of nanotube array and titanium dioxide, which is applied in the field of materials, can solve problems such as the difficulty in preparing large-sized and complete titanium dioxide nanotube array films, and achieve excellent photoelectric performance and application value, smooth film layers, and improved stability.

Pending Publication Date: 2022-02-15
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a titanium dioxide nanotube array film and its preparation method, as well as a photoelectric

Method used

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  • Titanium dioxide nanotube array film, preparation method thereof and photoelectric device
  • Titanium dioxide nanotube array film, preparation method thereof and photoelectric device
  • Titanium dioxide nanotube array film, preparation method thereof and photoelectric device

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preparation example Construction

[0045] as attached figure 1 As shown, the first aspect of the embodiment of the present application provides a method for preparing a titanium dioxide nanotube array film, comprising the following steps:

[0046] S10. mixing a non-conductive solvent, a fluorine-containing compound and water to prepare an electrolyte;

[0047] S20. Using the titanium metal sheet as the working electrode, constructing an electrolytic system with the counter electrode and electrolyte, performing the first electrolytic treatment, removing the titanium dioxide array grown on the surface of the working electrode, and obtaining a surface-treated working electrode;

[0048] S30. Assembling the surface-treated working electrode into the electrolytic system, performing a second electrolytic treatment, and annealing to obtain a composite working electrode with a titanium dioxide nanotube array film grown on the surface;

[0049] S40. Assemble the composite working electrode into the electrolysis system,...

Embodiment 1

[0079] A titanium dioxide nanotube array film, the preparation of which comprises the steps of,

[0080] ① Cut the titanium sheet into a size of 3cm×3cm. Ultrasonic cleaning is performed on the cut titanium sheet, first in acetone for 10 minutes, then in 10% hydrochloric acid for 10 minutes, and finally in ethanol for 10 minutes, after ultrasonic cleaning, place it in an oven at 60°C to dry .

[0081] ②Preparation before anodic oxidation: Anodic oxidation is carried out with a two-electrode system. The opposite electrode uses the same titanium metal sheet as the anode, and the back of the titanium metal sheet on the anode is pasted with insulating tape.

[0082] Preparation of electrolyte: use ethylene glycol as solvent, solute ammonium fluoride (NH 4 F) and deionized water, add the NH of solvent quality 0.1% 4 F, adding 2% deionized water by solvent volume, the preparation sequence is to NH 4 F added deionized water, NH 4 After F is completely dissolved, add ethylene gly...

Embodiment 2

[0088] A titanium dioxide nanotube array film, the preparation of which comprises the steps of,

[0089]① Cut the titanium sheet into a size of 5cm×5cm. Perform ultrasonic cleaning on the cut titanium sheet, first ultrasonic cleaning in acetone for 20 minutes, then ultrasonic cleaning in 5% hydrochloric acid for 20 minutes, and finally ultrasonic cleaning in ethanol for 20 minutes, after ultrasonic cleaning, place it in an oven at 60°C to dry .

[0090] ②Preparation before anodic oxidation: Anodic oxidation is carried out with a two-electrode system. The opposite electrode uses the same titanium metal sheet as the anode, and the back of the titanium metal sheet on the anode is pasted with insulating tape.

[0091] Preparation of electrolyte: use ethylene glycol as solvent, solute ammonium fluoride (NH 4 F) and deionized water, add the NH of solvent mass 0.5% 4 F, adding 1% deionized water by solvent volume, the preparation sequence is to NH 4 F added deionized water, NH 4...

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Abstract

The invention belongs to the technical field of materials, and particularly relates to a titanium dioxide nanotube array film, a preparation method thereof and a photoelectric device. The preparation method of a titanium dioxide nanotube array film comprises the following steps: constructing an electrolysis system by using a titanium metal sheet as a working electrode, a counter electrode and an electrolyte, carrying out primary electrolytic treatment, and removing a titanium dioxide array growing on a surface of the working electrode; carrying out secondary electrolytic treatment, wherein a titanium dioxide nanotube array film grows on the surface of the working electrode; carrying out third electrolytic treatment to form a titanium dioxide layer between the titanium metal sheet and the titanium dioxide nanotube array film; and decomposing the titanium dioxide layer to obtain the titanium dioxide nanotube array film. According to the preparation method provided by the invention, through three times of electrolytic treatment, the growth efficiency and quality of the titanium dioxide nanotube array film are improved, preparation of a large-size array film is realized, and the complete and large-size titanium dioxide nanotube array film is obtained.

Description

technical field [0001] The application belongs to the technical field of materials, and in particular relates to a titanium dioxide nanotube array film, a preparation method thereof, and a photoelectric device. Background technique [0002] Titanium dioxide (TiO 2 ) is a very important wide-bandgap semiconductor, which has broad application prospects in the fields of catalysis, sensing, batteries, and biology. The nanostructure of titanium dioxide is very variable, and each structure has its own unique properties. Among various structures, the nanotube array film structure, because of its unique alignment structure, excellent electrical and optical properties, non-toxicity, low cost, and good chemical stability, has become a supercapacitor, dye-sensitized solar cell, etc. ideal electrode material for such devices. At present, the titanium dioxide nanotube array film is directly grown on the surface of the metal titanium substrate by the method of anodic oxidation, which m...

Claims

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Application Information

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IPC IPC(8): C25D11/26
CPCC25D11/26
Inventor 薛冬峰陈昆峰王志强
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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