Preparation method of functionalized two-dimensional nano-material and functionalized nano thin film

A two-dimensional nanomaterial and two-dimensional nanotechnology, applied in the field of nanomaterial preparation, can solve problems such as the limitation of functionalized two-dimensional nanomaterials, the distance between industrial production and application, and achieve good environmental protection, low cost, and high quality. Effect

Inactive Publication Date: 2018-08-28
刘丹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the functionalized two-dimensional nanomaterials prepared by these technologies are only limited to the laboratory output, which is far from the actual industrial production and application.

Method used

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  • Preparation method of functionalized two-dimensional nano-material and functionalized nano thin film
  • Preparation method of functionalized two-dimensional nano-material and functionalized nano thin film
  • Preparation method of functionalized two-dimensional nano-material and functionalized nano thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The purpose of this example is to verify the preparation of hydroxyl (OH) functional group-functionalized hexagonal boron nitride nanosheets using the method of the present invention.

[0051] In this example, hexagonal boron nitride and sucrose are mixed in a mass ratio of 1:60 and put into a ball mill jar. For ball milling, stainless steel balls with a diameter of 10mm were used, and the ball milling condition was 700rmp, and ball milling was carried out at room temperature for 20 hours. High-speed stainless steel balls provide enough energy to effectively strip boron nitride raw materials. Among them, sucrose is not only an effective stripping agent, but also protects the structure of boron nitride from being destroyed by mechanical force during the stripping process to form lattice defects.

[0052] After ball milling, the obtained mixed powder is dissolved in deionized water, and its aqueous solution is placed in a dialysis membrane and washed repeatedly for 5-10 ...

Embodiment 2

[0057] The purpose of this embodiment is to verify that amino (NH 2 ) functionalized hexagonal boron nitride nanosheets.

[0058] In this example, hexagonal boron nitride and urea were mixed in a mass ratio of 1:10 and then put into a stainless steel ball mill jar. Stainless steel balls with a diameter of 10 mm were used for ball milling, the ball milling condition was 500 rpm, and the ball milling was carried out at room temperature for 30 hours. Its principle is identical with embodiment 1.

[0059] After the ball milling is finished, the obtained mixed powder is dissolved in deionized water, and the aqueous solution is put into the dialysis membrane and washed repeatedly for 5-10 days to completely remove the urea. Finally, a stable colloidal solution of amino-functionalized hexagonal boron nitride can be obtained.

[0060] Figure 10 and Figure 11 It is the observation result of the morphology of the two-dimensional material prepared in this example by scanning elect...

Embodiment 3

[0062] The purpose of this example is to verify the preparation of hydroxyl (OH) functional group-functionalized molybdenum sulfide nanosheets using the method of the present invention.

[0063]In this example, molybdenum sulfide and glucose were mixed in a mass ratio of 1:50 and then put into a stainless steel ball mill jar. For ball milling, stainless steel balls with a diameter of 10mm were used, the ball milling condition was 500rmp, and ball milling was performed at room temperature for 5 hours. The mixed powder obtained after ball milling is dissolved in deionized water, and its aqueous solution is placed in a dialysis membrane and washed repeatedly for 5-10 days to completely remove glucose. Finally, a stable colloidal solution of hydroxyl (OH) functionalized molybdenum sulfide nanosheets was obtained.

[0064] Figure 12 is the XRD pattern of functionalized molybdenum sulfide nanoflakes. From the results in the figure, it can be confirmed that the substance in the c...

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Abstract

The invention provides a preparation method of a functionalized two-dimensional nano-material and a functionalized nano thin film and relates to the technical field of preparation of nano-materials. According to the preparation method provided by the invention, a Van der Waals laminar solid material and an organic small molecular solid material with a functional group are mixed and the mass of theorganic small molecular solid material is greater than or equal to the mass of the Van der Waals laminar material; a mixture is subjected to ball milling operation under normal temperature and pressure conditions to prepare a functionalized two-dimensional nano-sheet; then the mixture subjected to the ball milling is washed through de-ionized water and an obtained colloid solution is subjected tovacuum filtering and drying to prepare the functionalized nano thin film. The preparation method provided by the invention is realized under the normal temperature and pressure conditions and has thecharacteristics of high yield, high quality, good repeatability, low cost, no catalysis, no template, environment friendliness and the like.

Description

technical field [0001] The invention belongs to the technical field of preparation methods and applications of nanometer materials, and in particular relates to a preparation method of functionalized two-dimensional nanomaterials and a nanometer thin film prepared by the method. Background technique [0002] Layered bulk materials have strong in-plane covalent bonding, but the coupling of out-of-plane bonds relies on weak van der Waals interactions. Destruction of weak bond bonding will result in the peeling of two-dimensional nanomaterials, and its thickness can reach The limit of atomic layer thickness. Since 2004, the Geim team at the University of Manchester successfully peeled off graphene, due to its extraordinary physical, electronic, chemical and optical properties and promising applications, these are beyond the reach of its opponents. Therefore, exploring other new ultrathin two-dimensional nanomaterials has become the hottest research topic in the fields of conde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B21/064C01G39/06C01G41/00C01B32/194B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01B21/0648C01B2204/04C01G39/06C01G41/00C01P2002/72C01P2002/82C01P2002/84C01P2002/85C01P2004/03C01P2004/04C01P2004/20C01P2004/22
Inventor 类伟巍刘丹
Owner 刘丹
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