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A Method for Accurately Determining the Mass of Titanium Dioxide Nanotube Arrays

A nanotube array, titanium dioxide technology, applied in measurement devices, instruments, coatings, etc., can solve problems such as inaccurate weighing results

Active Publication Date: 2019-04-12
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The quality measurement technology for preparing titanium dioxide nanotubes by the anodic oxidation method provided by the present invention can accurately measure the quality of titanium dioxide nanotubes, and provides a new effective measure for solving the problem of inaccurate traditional methods of weighing results after ultrasonic separation, The application in many fields (such as the determination of the quality of electrode materials in lithium-ion batteries) is of great significance

Method used

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  • A Method for Accurately Determining the Mass of Titanium Dioxide Nanotube Arrays
  • A Method for Accurately Determining the Mass of Titanium Dioxide Nanotube Arrays
  • A Method for Accurately Determining the Mass of Titanium Dioxide Nanotube Arrays

Examples

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Embodiment 1

[0027] A rectangular titanium sheet with a thickness of 0.2 mm and a thickness of 4 × 10 cm was ultrasonicated for 5 min, pickled, and subjected to three different anodic oxidations in an organic solution system containing fluoride ions, and then dried at 400 °C after heat treatment; , add 1ml of HF to the reaction solution, and react under magnetic stirring for 10min, take out 10ml of the solution and dilute it into 190ml of deionized water to fully mix, detect the concentration of titanium in the diluent by ICP, and convert it into fluoride ion after the anodization process. The total mass of titanium in the organic solution; the mass of oxygen in titanium dioxide can be obtained, and then the mass of titanium dioxide can be calculated.

Embodiment 2

[0029] A rectangular titanium sheet with a thickness of 0.2 mm and a thickness of 4 × 10 cm was ultrasonicated for 15 minutes, pickled, and subjected to three different anodic oxidations in an organic solution system containing fluoride ions, and then dried at 450 °C after heat treatment; , add 2ml of HF to the reaction solution, and react under magnetic stirring for 30min, take out 10ml of the solution and dilute it into 190ml of deionized water to fully mix, detect the concentration of titanium in the diluent by ICP, and convert it into fluoride ion after the anodization process is over. The total mass of titanium in the organic solution; the mass of oxygen in titanium dioxide can be obtained, and then the mass of titanium dioxide can be calculated.

Embodiment 3

[0031] A rectangular titanium sheet with a thickness of 0.2 mm and a thickness of 4 × 10 cm was ultrasonicated for 30 minutes, pickled, and subjected to three different anodic oxidations in an organic solution system containing fluoride ions. After heat treatment at 500 ℃, drying; , add 5ml of HF solution to the reaction solution, and react under magnetic stirring for 60min, take out 10ml of solution and dilute it into 190ml of deionized water to fully mix, detect the concentration of titanium in the diluent by ICP, and convert it to contain fluoride ions after the anodization process. The total mass of titanium element in the organic solution can be obtained; the mass of oxygen element in titanium dioxide can be obtained, and then the mass of titanium dioxide can be calculated.

[0032] Example 2 The SEM images of titanium dioxide with oxidation voltages of 10V, 30V and 50V are shown in Figure 2 to Figure 4 , the XRD patterns of the three samples are shown in Figure 5 .

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Abstract

The invention relates to a method for accurately determining the quality of a titanium dioxide nanotube array, and belongs to the technical field of metal material measurement. The method comprises the following steps: pre-treating a titanium substrate and weighting, thereby acquiring mass a; anodizing a titanium sheet after being pre-treated in an organic solution system containing fluorine ions, so as to acquire a titanium dioxide nanotube, thermally treating at 300-500 DEG C, keeping the temperature for 1-3h, carrying out furnace cooling to the room temperature, taking out the sample and weighting, thereby acquiring mass b; adopting thermally treated ICP (Inductively Coupled Plasma) for determining titanium element concentration, and converting into the total mass c of the titanium element in the organic solution containing fluorine ions after the ending of anodizing process; and acquiring the mass d of the oxygen element in titanium dioxide according to the formula: c+b-a=d, thereby calculating the mass of titanium dioxide. According to the technical scheme provided by the invention, the repeatability is high, the effect is excellent and obvious, and the accuracy is high.

Description

technical field [0001] A method for accurately measuring the quality of a titanium dioxide nanotube array belongs to the technical field of metal material measurement. Background technique [0002] Titanium dioxide has attracted great attention due to its good stability, non-toxicity, acid and alkali resistance, and low price. The research results show that nano-scale titanium dioxide (particles, nanowires, nanotubes, etc.) has a large specific surface area, and its surface atomic number, surface energy and surface tension increase sharply with the decrease of particle size. The unique physical and chemical properties make the nano-titanium dioxide particles different from conventional particles in terms of heat, light, sensitive properties and surface stability, which makes it have a wide range of applications in the fields of environment, information, materials, energy, medical care and health. application prospects. In recent years, TiO2 nanotubes have been prepared dir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/62G01N5/00C25D11/26C25D5/18
CPCC25D5/18C25D11/26G01N5/00G01N27/62
Inventor 李洪义祖冠男王金淑焦鹏李萍萍
Owner BEIJING UNIV OF TECH