Physical vacuum method of preparing two-dimensional nano-material

A two-dimensional nanomaterial and vacuum technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of being unsuitable for large-scale production, cumbersome preparation process, and expensive materials, and meet the requirements of mass production , simple preparation, and the effect of improving quality

Active Publication Date: 2018-12-18
广东致密纳米技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] With the continuous development of science and technology, traditional nanomaterial preparation methods can no longer meet people's needs. The preparation process of hydrothermal and other methods is very cumbersome, expensive materials, not suitable for large-scale production, and the cost is very high. The performance requirements are getting higher and higher. How to improve the performance of nanomaterials and then improve the performance of nanomaterial products is imminent. Therefore, a new method for preparing nanomaterials is needed to solve these problems.

Method used

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Examples

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Effect test

Embodiment 1

[0032] The preparation method of two-dimensional tin oxide nanomaterial comprises the following steps:

[0033] S1: Add 1.13g of ammonium formate to 300ml of distilled water, then add formic acid, and add an auxiliary agent to a final concentration of 2.5 mg / L. The auxiliary agent is made by mixing iodine oxide and tellurium oxide in a mass ratio of 3:2 , stirred at a speed of 120rpm / min for 6 minutes, and carried out ultrasonic treatment at the same time, the time of each ultrasonic treatment was 65s, the ultrasonic interval time was 45s, and the power of ultrasonic treatment was 190W, and finally obtained a mixed solution with a pH of 2.7;

[0034]S2: each 100mL of the graphene oxide solution of 17mg / L and the tin chloride pentahydrate solution of 54g / L; First 1 / 3 of the graphene oxide solution and two-fifths of the tin chloride pentahydrate solution are added to 300mL of the solution obtained in S1, and add N-vinylpyrrolidone to its final concentration of 5.5mg / L, stir well...

Embodiment 2

[0039] The preparation method of two-dimensional titanium oxide nanometer material, comprises the following steps:

[0040] S1: Add 0.574g of Tris to 300ml of distilled water, then add concentrated hydrochloric acid, and add an auxiliary agent to a final concentration of 2.5ml / L. The auxiliary agent consists of iodine oxide and tellurium oxide in a mass ratio of 3 :2 mixed, stirred at 120rpm / min speed for 10 minutes, and carried out ultrasonic treatment at the same time, the time of each ultrasonic treatment was 65s, the ultrasonic interval time was 45s, and the power of ultrasonic treatment was 230W, and it was 7.3 to obtain pH. solution;

[0041] S2: Get 100mL of the graphene oxide solution of 16mg / L and the titanium chloride solution of 43g / L; First add one-third of the graphene oxide solution and two-fifths of the titanium chloride solution into 300mL of S1 The solution obtained, and add N-vinylpyrrolidone to its final concentration of 5.5mg / L, stir well; then add one-thi...

Embodiment 3

[0046] The preparation method of two-dimensional magnesium oxide nanometer material, comprises the following steps:

[0047] S1: Add 0.214g of alanine to 300ml of distilled water, then add concentrated hydrochloric acid, and add an auxiliary agent to a final concentration of 2.5mg / L. The auxiliary agent is composed of iodine oxide and tellurium oxide in a mass ratio of 3:2 Mixed, stirred at a speed of 120rpm / min for 12 minutes, and ultrasonic treatment was carried out at the same time, the time of each ultrasonic treatment was 65s, the interval of ultrasonic treatment was 45s, and the power of ultrasonic treatment was 270W, and a uniformly mixed solution with a pH of 3.9 was obtained;

[0048] S2: get each 100mL of the graphene oxide solution of 21mg / L and the magnesium sulfate heptahydrate solution of 67g / L; The solution obtained in S1, and add N-vinylpyrrolidone to its final concentration of 5.5mg / L, stir well; then add one-third of the graphene oxide solution and one-fifth ...

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Abstract

The invention discloses a physical vacuum method of preparing a two-dimensional nano-material, which includes: S1) according to the types of metals, preparing buffer solutions in corresponding pH values; S2) adding graphene oxide, metal salt, N-vinyl pyrrolidone and hexamethyl disilazane to the solution in S1) to form a mixed solution; S3) heating the mixed solution and performing continuous centrifugal washing to obtain a precipitate; S4) moving the precipitate to a vacuum-freeze-drying device to prepare to-be-processed powder; S5) calcining the to-be-processed powder in a calcinator, and performing temperature controlled cooling, magnetic stirring and ball milling to obtain the two-dimensional nano-material. In conclusion, the method is simple, employs accessible raw materials, can satisfy large-scale production, is green and environment-friendly, and effectively improves the bending strength of the nano-material.

Description

technical field [0001] The invention relates to the technical field of nanomaterial manufacturing, in particular to a method for preparing two-dimensional nanomaterials by physical vacuum energy. Background technique [0002] Materials are material entities with certain characteristics that we use to make various machines, devices, structures, etc. The development of the times is inseparable from the development of materials, from the initial natural materials to the use of ceramics, bronze, iron, etc. , steel, non-ferrous metals, polymer materials, until now the latest new materials, with the continuous progress of the times, the material is also in continuous development, nano-materials are more and more used by people, and our lives are also full of all kinds of things made of nanomaterials. [0003] Nanomaterials refer to materials that have at least one dimension in a three-dimensional space that is in nanometer size or composed of them as basic units. Nanomaterials ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/02C01F5/12B82Y40/00B82Y30/00C01G23/053
CPCB82Y30/00B82Y40/00C01F5/12C01G19/02C01G23/0536
Inventor 杨双林
Owner 广东致密纳米技术有限公司
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