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Preparation method and use of millimetre-sized mesoporous carbon spheres

A millimeter-scale, mesoporous carbon technology, applied in nanostructure manufacturing, nanotechnology, nanotechnology and other directions, can solve the problems of low specific surface area, low adsorption rate, low adsorption capacity, etc., and achieve simple preparation conditions, specific surface area and low adsorption capacity. The effect of large pore volume and excellent adsorption performance

Active Publication Date: 2012-05-30
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problems of low adsorption rate and low adsorption capacity caused by the large pore size, uneven pore size distribution, and low specific surface area of ​​existing adsorbent materials for hemoperfusion, the invention discloses a preparation method of millimeter-scale mesoporous carbon spheres

Method used

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  • Preparation method and use of millimetre-sized mesoporous carbon spheres
  • Preparation method and use of millimetre-sized mesoporous carbon spheres
  • Preparation method and use of millimetre-sized mesoporous carbon spheres

Examples

Experimental program
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Effect test

Embodiment 1

[0043] First, 4.6 g of resorcinol was dissolved in 40 g of ethanol; then 6 g of furfural and 0.75 g of 1 wt % hydrogen chloride ethanol solution were added. It was then stirred for 30 min at 10°C. Add molar concentration then and be the aqueous solution 1.8mL of the hexamethylenetetramine of 2.54mol / L and 8g F 127 Stirring for 60min, the molar ratio of its components, F 127 : resorcinol: furfural: HCl: hexamethylenetetramine: ethanol: water = 0.015: 1: 1.5: 0.005: 0.1: 20: 0.75. The above solution was put into 500mL liquid paraffin solution containing 8g Span-80, and then pre-polymerized for 120min under stirring at 60°C. Then, it was heated at 115° C. for 240 min with stirring. Filtrate and wash the recovered product, dry at 100°C for 12 hours, put the obtained pellets into an atmosphere furnace, raise the temperature at 2°C / min to 800°C for 4 hours, and carry out the whole carbonization process under a nitrogen atmosphere to obtain millimeter-sized Mesoporous carbon sphe...

Embodiment 2

[0045] The synthesis process was the same as that described in Example 1, except that the stirring temperature was 0° C. and the stirring time was 120 min during the preparation of the precursor solution. The diameter of the obtained mesoporous carbon sphere is 1.1-1.8mm, and the specific surface area of ​​the sphere is 590.2m 2 / g, the most probable pore size is 6.1nm, and the pore volume is 0.45cm 3 / g.

Embodiment 3

[0047] The synthesis process was the same as that described in Example 1, except that the stirring temperature was 15° C. and the stirring time was 10 min during the preparation of the precursor solution. The diameter of the obtained mesoporous carbon sphere is 0.8-1.3mm, and the specific surface area of ​​the sphere is: 650.0m 2 / g, the most probable pore size is 9.8nm, and the pore volume is 0.50cm 3 / g.

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Abstract

The invention belongs to the field of inorganic nano material synthesis and particularly relates to a preparation method and use of millimetre-sized mesoporous carbon spheres. The preparation method comprises the following steps of: dissolving resorcinol in ethanol serving as a solvent; adding furfural and ethanol solution of hydrogen chloride, and stirring the mixture at 0 to 15 DEG C for 10 to 120 minutes; adding aqueous solution of hexamethylenetetramine and pore-forming material into the prepared solution to obtain solution of a precursor; adding the prepared solution of the precursor into liquid max containing an emulsifier, and stirring the solution to perform per-polymerization; volatilizing the solvent, filtering the remaining material, and washing and drying the product obtained by filtration; and carbonizing the product to obtain the millimetre-sized mesoporous carbon spheres. The preparation of the millimetre-sized mesoporous carbon spheres of the invention is performed under simple conditions and with easy operation. The millimetre-sized mesoporous carbon spheres prepared by the method have the characteristics of adjustable size, large specific surface area, large porevolume and the like, and can be used as adsorbent for hemoperfusion and the like.

Description

technical field [0001] The invention belongs to the field of synthesis of inorganic nanomaterials, and relates to a preparation method of millimeter-scale mesoporous carbon spheres. Background technique [0002] Toxins in the human body are divided into exogenous toxins and endogenous toxins. The former is toxic substances (such as pesticides) from outside the human body. When this toxic substance accumulates too much in the human body, it will cause various diseases in the body; When effectively removed, the toxic substances formed (such as bilirubin, uric acid, etc.) can also cause various lesions. [0003] Under normal circumstances, the human body can detoxify through its own protection systems such as the liver detoxification system, the body's own immune system and excretion system, and remove or neutralize endogenous or exogenous toxins. However, for acute drug poisoning, uremia, liver failure and other diseases, when the human body loses its ability to detoxify, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02B82B3/00
Inventor 郭利民张玲霞施剑林
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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