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A method for preparing two-dimensional nanomaterials in a physical vacuum

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, so as to meet the requirements of mass production , simple preparation, and the effect of improving quality

Active Publication Date: 2020-08-18
广东致密纳米技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A method for preparing two-dimensional nanomaterials in a physical vacuum
  • A method for preparing two-dimensional nanomaterials in a physical vacuum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

[0034] S2: Take 100mL each of 17mg / L graphene oxide solution and 54g / L tin chloride pentahydrate solution; first add one-third of graphene oxide solution and two-fifths of tin chloride pentahydrate solution to 300mL of the solution obtained in S1, and add N-vinylpyrrolidone to its final concentration of 5.5mg / L, stir evenly; then add one-third o...

Embodiment 2

[0039] The preparation method of two-dimensional titanium oxide nanomaterial includes the following steps:

[0040] S1: Add 0.574g of tris(hydroxymethyl)aminomethane to 300ml of distilled water, then add concentrated hydrochloric acid, and add the auxiliary agent to the final concentration of 2.5ml / L, the auxiliary agent from iodine oxide to tellurium oxide according to the mass ratio of 3 : 2 is mixed, stirred at a speed of 120rpm / min for 10 minutes, and ultrasonic treatment is carried out at the same time. The time of each ultrasonic treatment is 65s, the ultrasonic interval is 45s, and the power of the ultrasonic treatment is 230W to obtain a uniformly mixed pH of 7.3 Solution

[0041] S2: Take 100mL each of 16mg / L graphene oxide solution and 43g / L titanium chloride solution; first add one third of graphene oxide solution and two fifths of titanium chloride solution to 300mL of S1 Add N-vinylpyrrolidone to the resulting solution to a final concentration of 5.5mg / L, and stir eve...

Embodiment 3

[0046] The preparation method of two-dimensional magnesium oxide nanomaterial includes the following steps:

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

[0048] S2: Take 100mL each of 21mg / L graphene oxide solution and 67g / L magnesium sulfate heptahydrate solution; first add one third of the graphene oxide solution and two fifths of the magnesium sulfate heptahydrate solution to 300mL Add the solution obtained in S1, and add N-vinylpyrrolidone to its final concentration of...

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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 nano material manufacturing, in particular to a method for preparing two-dimensional nano materials by physical vacuum energy. Background technique [0002] Materials are the physical entities we use to make various machines, devices, structures, etc., which have certain characteristics. The development of the times cannot be separated from the development of materials. From the beginning of natural materials, it slowly developed to use ceramics, bronze, and iron. , Steel, non-ferrous metals, polymer materials, until now the latest new materials, with the continuous progress of the times, the materials are also in continuous development, nano materials are more and more adopted by people, and our lives are also full of all kinds of colors Something made of nanomaterials. [0003] Nanomaterials refer to materials that have at least one dimension in the three-dimensional space in nanometer size or are composed of...

Claims

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Application Information

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Patent Type & Authority Patents(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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