Preparation method of molybdenum disulfide nanosheet

A technology of molybdenum disulfide and nanosheets, which is applied in the field of preparation of molybdenum disulfide nanosheets, can solve cumbersome and complicated problems, achieve the effects of low equipment requirements, simple preparation methods, and save time and scientific research costs

Pending Publication Date: 2021-12-31
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Molybdenum disulfide is one of the above-mentioned materials. At present, most of the preparation processes of molybdenum disulfide nanosheets are complicated and cumbersome, and a lot of preparatory work is required. Therefore, it is necessary to provide an A facile method to prepare molybdenum disulfide nanosheets

Method used

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  • Preparation method of molybdenum disulfide nanosheet
  • Preparation method of molybdenum disulfide nanosheet

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of molybdenum disulfide nanosheets, such as figure 1 shown, including the following steps:

[0025] (1) First weigh 0.1g molybdenum disulfide powder, then measure 60mL of DMF and 20mL of H 2 O and mix the two;

[0026] (2) Mix the DMF and H 2 O mixture was put into a magnetic stirrer and stirred for 30 minutes, then molybdenum disulfide powder was added, and stirring was continued for 10 minutes to prepare a uniform dispersion;

[0027] (3) Pour the stirred homogeneous dispersion into a beaker and cover the mouth of the bottle with plastic wrap, and then perform ultrasonic treatment, the ultrasonic power is 100W, and the ultrasonic time is 7h;

[0028] (4) Use a burette to transfer the mixed solution after ultrasonication to a centrifuge tube, and use gradient centrifugation to centrifuge the mixed solution at 2000r / min for 20min, then take it out and continue to centrifuge at 5000r / min for 10min, and finally take out the supernatant solution to...

Embodiment 2

[0030] A preparation method of molybdenum disulfide nanosheets, such as figure 1 shown, including the following steps:

[0031] (1) First weigh 0.15g of molybdenum disulfide powder, then measure 80mL of NMP and 20mL of H 2 O and mix the two;

[0032] (2) The mixed NMP and H 2 O mixture was put into a magnetic stirrer and stirred for 20min, then molybdenum disulfide powder was added, and stirring was continued for 20min to prepare a uniform dispersion;

[0033] (3) Pour the stirred homogeneous dispersion into a beaker and cover the mouth of the bottle with plastic wrap, then perform ultrasonic treatment, the ultrasonic power is 200W, and the ultrasonic time is 10h;

[0034] (4) Use a burette to transfer the mixed solution after ultrasonication to a centrifuge tube, and use gradient centrifugation to centrifuge the mixed solution at 2500r / min for 30min, then take it out and continue to centrifuge at 5500r / min for 20min, and finally take out the supernatant solution to obtain...

Embodiment 3

[0036] A preparation method of molybdenum disulfide nanosheets, such as figure 1 shown, including the following steps:

[0037] (1) First weigh 0.35g of molybdenum disulfide powder, then measure 60mL of isopropanol and 20mL of H 2 O and mix the two;

[0038] (2) Mixed isopropanol and H 2 O mixture was put into a magnetic stirrer and stirred for 30 minutes, then molybdenum disulfide powder was added, and stirring was continued for 10 minutes to prepare a uniform dispersion;

[0039] (3) Pour the stirred homogeneous dispersion into a beaker and cover the mouth of the bottle with plastic wrap, then perform ultrasonic treatment, the ultrasonic power is 300W, and the ultrasonic time is 8h;

[0040] (4) Use a burette to transfer the mixed solution after ultrasonication to a centrifuge tube, and use gradient centrifugation to centrifuge the mixed solution at 3000r / min for 25min, then take it out and continue to centrifuge at 6000r / min for 20min, and finally take out the supernatan...

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Abstract

The invention belongs to the technical field of two-dimensional layered material preparation, and particularly relates to a preparation method of a molybdenum disulfide nanosheet, wherein the preparation method comprises the following steps: S1, placing molybdenum disulfide powder in a dispersing agent to prepare uniform dispersion liquid; S2, carrying out ultrasonic treatment on the uniform dispersion liquid prepared in the step S1; and S3, carrying out gradient centrifugal treatment on the dispersion liquid subjected to ultrasonic treatment in the step S2, and taking supernate, so as to obtain a molybdenum disulfide nanosheet dispersion liquid. According to the method, the used raw materials are simple, the preparation method is simple, the preparation period is short, and the uniform molybdenum disulfide nanosheet can be obtained.

Description

technical field [0001] The invention belongs to the technical field of preparation of two-dimensional layered materials, and in particular relates to a preparation method of molybdenum disulfide nanosheets. Background technique [0002] In recent years, with the continuous research on two-dimensional layered materials, it has developed into one of the research objects that have attracted much attention in the field of materials science. By definition, two-dimensional layered materials are limited to single-atom-layer nanomaterials, but currently people also attribute single-layer or few-layer nanomaterials to two-dimensional layered materials. Two-dimensional layered materials have the advantages of low density, high mechanical strength, low friction coefficient, good thermal conductivity, etc., and have been widely used in energy, environment, electronics, biology, etc. Two-dimensional layered materials include graphene, black phosphorus, hexagonal boron nitride, transitio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G39/06B82Y40/00
CPCC01G39/06B82Y40/00C01P2004/20C01P2002/84C01P2004/04
Inventor 许并社欧阳辉灿尚林
Owner SHAANXI UNIV OF SCI & TECH
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