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Preparation method of large-size carbon spheres

A large-size, carbon sphere technology, applied in the field of preparation of large-size carbon spheres, can solve the problems of large size and achieve the effect of large size, simple equipment and low cost

Inactive Publication Date: 2010-11-03
LIAOCHENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Carbon materials have excellent chemical stability and are used as separation materials for the separation and enrichment of substances, but the size of carbon spheres required in this application field is relatively large

Method used

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Experimental program
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Effect test

Embodiment 1

[0017] A preparation method of large-size carbon spheres, comprising the steps of:

[0018] (1) Sodium dodecyl sulfonate is added in the glucose solution to form a mixed solution, wherein the concentrations of glucose and sodium dodecyl sulfonate are respectively: 0.2g / ml and 0.005g / ml;

[0019] (2) Heating the above mixed solution to 240°C and maintaining the temperature for 600 minutes; then, cooling to room temperature;

[0020] (3) The product is taken out, and after washing, suction filtration and drying processes, large-sized carbon spheres can be obtained.

[0021] Characterized by scanning electron microscopy, the carbon spheres have a diameter of 5-11 μm.

Embodiment 2

[0023] A preparation method of large-size carbon spheres, comprising the steps of:

[0024] (1) sodium dodecylbenzenesulfonate is added in the glucose solution to form a mixed solution, wherein the concentrations of glucose and sodium dodecylbenzenesulfonate are respectively 0.6g / ml and 0.02g / ml;

[0025] (2) Heating the above mixed solution to 230°C and maintaining the temperature for 800 minutes; then, cooling to room temperature;

[0026] (3) The product is taken out, and after washing, suction filtration and drying processes, large-sized carbon spheres can be obtained;

[0027] Characterized by scanning electron microscopy, the diameter of the carbon spheres is 9-13 μm.

Embodiment 3

[0029] A preparation method of large-size carbon spheres, comprising the steps of:

[0030] (1) Surfactant is joined in the glucose solution to form mixed liquor, and the concentration of glucose, surfactant is respectively 0.4g / ml and 0.015g / ml in the described mixed liquor; Wherein surfactant is dodecyl sulfonate The mixing of sodium dodecylbenzenesulfonate and sodium dodecylbenzenesulfonate, the mass ratio of the two is 7:8;

[0031] (2) Heating the above mixed solution to 240°C, maintaining the temperature for 500 minutes, and then cooling to room temperature;

[0032] (3) The product is taken out, and after washing, suction filtration and drying processes, large-sized carbon spheres can be obtained.

[0033] Characterized by scanning electron microscopy, the carbon spheres have a diameter of 7-10 μm.

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Abstract

The invention provides a preparation method of large-size carbon spheres, which comprises the following steps: (1) adding an anionic surfactant into a glucose solution to form a mixed liquor, wherein the concentrations of glucose and the anionic surfactant in the mixed liquor are respectively 0.2-0.6 g / ml and 0.005-0.02 g / ml; (2) heating the mixed liquor to 230-250 DEG C, keeping the temperature for 500-800 minutes, and cooling to room temperature; (3) and taking out the product, washing, filtering, and drying to obtain the large-size carbon spheres. By adding the surfactant and using the glucose as the raw material, the large-size carbon spheres are prepared. The invention has the advantages of simple equipment, simple production technique and low cost.

Description

technical field [0001] The invention relates to a method for preparing carbon spheres, in particular to a method for preparing large-size carbon spheres. Background technique [0002] With the discovery of carbon materials such as carbon nanotubes, fullerenes and graphene, people have realized the importance of carbon materials in the development of human civilization. Carbon materials have high chemical stability, good high temperature and heat resistance, and have broad application prospects in the biological and electronic fields, which have attracted great attention. Among them, spherical carbon materials (carbon spheres) are also used as drugs, catalyst carrier materials, biomass separation materials, and drug sustained-release materials. [0003] There are many preparation methods for carbon sphere materials, such as chemical vapor deposition (CVD), asphalt pyrolysis, arc method, and sugar dehydration method. Among them, CVD and arc methods require expensive equipmen...

Claims

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Application Information

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IPC IPC(8): C01B31/02
Inventor 张大凤蒲锡鹏仪修杰李文智贾丽萍柳仁民
Owner LIAOCHENG UNIV
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