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A kind of preparation method of two-dimensional carbon nano sheet

A two-dimensional nano-carbon sheet, acrylic technology, applied in nano-carbon, nano-technology, nano-technology and other directions, can solve the problems of high price and complicated preparation process, and achieve the effect of simple source and simple process

Active Publication Date: 2014-10-29
江阴智产汇知识产权运营有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for preparing two-dimensional carbon nanosheets in order to overcome the deficiencies in the prior art such as complex preparation process and high price

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Mix acrylic acid and water at a ratio of 1:2 by volume, and add the hydrotalcite particles passing through a 20-mesh sieve to the acrylic acid solution according to the amount of 5 mmol of acrylic acid per gram of commercially available magnesium aluminum hydrotalcite, and stir at a constant temperature of 70°C 6 h, aged for 24 h, separated the particles, washed 3 times with deionized water, and added the particles to a 10% isopropanol solution to adjust the organic matter content between the hydrotalcite layers. Each gram of hydrotalcite corresponds to isopropanol Propanol solution was 10 ml, stirred for 3 h, then ammonium persulfate was added to initiate the polymerization of acrylic acid, the amount of ammonium persulfate per gram of hydrotalcite was 15 mmol, heated to 90°C, reacted for 10 h, washed 3 times with deionized water , dried at 90°C, ground, and passed through a 40-mesh sieve to obtain powder; put the obtained powder into a vacuum tube furnace, heat to 700°...

Embodiment 2

[0024]Mix acrylic acid and water at a ratio of 1:1 by volume, and add 50-mesh hydrotalcite particles into the acrylic acid solution according to the amount of 3 mmol of acrylic acid per gram of commercially available zinc-aluminum hydrotalcite, and stir at a constant temperature of 60°C 5 h, aged for 12 h, separated the particles, washed twice with deionized water, and added the particles to a 5% isopropanol solution to adjust the organic matter content between the hydrotalcite layers. Each gram of hydrotalcite corresponds to isopropanol Propanol solution was 5 ml, stirred for 2 hours, then ammonium persulfate was added to initiate the polymerization of acrylic acid, the amount of ammonium persulfate per gram of hydrotalcite was 5 mmol, heated to 60°C, reacted for 8 hours, washed twice with deionized water, Dry at 70°C, grind, and pass through a 20-mesh sieve to obtain powder; put the obtained powder into a vacuum tube furnace, heat to 600°C under vacuum, calcine in vacuum for ...

Embodiment 3

[0026] Firstly, the magnesium-aluminum hydrotalcite was synthesized according to the literature (hydrothermal synthesis of magnesium-aluminum hydrotalcite, Applied Chemistry, 2001, 18, 70-72); the hydrotalcite was passed through a 40-mesh sieve for later use.

[0027] Mix acrylic acid and water at a ratio of 1:2 by volume, and add the prepared hydrotalcite particles into the acrylic acid solution according to the amount of 4 mmol of acrylic acid per gram of hydrotalcite, stir at 65°C for 6 h, and age for 16 h , then separate the particles, wash them with deionized water for 2~3 times, and add the particles into the isopropanol solution with a concentration of 8% to adjust the organic matter content between the hydrotalcite layers. The corresponding isopropanol solution per gram of hydrotalcite is 8 ml, stirred for 3 h, then added ammonium persulfate to initiate the polymerization of acrylic acid, the amount of ammonium persulfate per gram of hydrotalcite was 10 mmol, heated to ...

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Abstract

The present invention discloses a two-dimensional nanometer carbon sheet preparation method, and belongs to the field of nanometer material preparation. The preparation method comprises: mixing acrylic acid and water according to a volume ratio of 1:1-1:2, adding hydrotalcite particles to the acrylic acid solution, stirring for 5-6 h at a temperature of 60-70 DEG C, aging for 12-24 h to obtain a particulate matter, separating the particulate matter, washing 2-3 times with deionized water, adding to an isopropanol solution, stirring, adding ammonium persulfate, heating, washing with deionized water, drying, grinding, and screening through a 20-40 mesh sieve to obtain powder; heating the obtained powder to a temperature of 600-700 DEG C, carrying out vacuum calcination for 2-4 h, and cooling to a room temperature; and adding the calcined powder to a hydrochloric acid solution with a concentration of 20-40%, stirring for 3-4 h under nitrogen protection, and carrying out precipitation separation to obtain the two-dimensional nanometer carbon sheet, wherein per g of the powder is corresponding to 5-10 ml of the hydrochloric acid solution, and the process is simple.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a preparation method of a two-dimensional nanocarbon sheet. Background technique [0002] In the research and development of new materials, dimensionality has become an important parameter for modulating the structure and properties of matter. When the material changes from three-dimensional structure to two-dimensional, one-dimensional and zero-dimensional, its geometric structure and physical and chemical properties will change significantly. Two-dimensional nanomaterials have been widely used in many fields such as solid-state nanodevices, sensing and functional thin films due to their anisotropy and unique optoelectronic properties. [0003] As a two-dimensional material, the general thickness direction is monoatomic layer or diatomic layer carbon atoms. The discovery of graphene broke the theoretical inference that two-dimensional single-layer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02B82Y30/00C01B32/15
Inventor 马建锋邹静李定龙杨彦
Owner 江阴智产汇知识产权运营有限公司
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