Preparation method for porous carbon material with high specific surface area

A high specific surface area, porous carbon technology, applied in the field of preparation methods, can solve the problems of unsafe ecological environment, residues, poor digestion and absorption of tetracycline, etc., and achieve the simple and easy preparation method, easy control of operation, and fast adsorption rate Effect

Inactive Publication Date: 2016-01-27
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Tetracycline antibiotics have good antibacterial activity against Gram-positive and Gram-negative serious diseases, so they are widely used in human and animal disease prevention and treatment or as poultry feed additives. However, tetracyclines are poorly digested and absorbed in the body, Therefore, most of them are not involved in metabolism and excreted from the body, and still maintain biological activity. They enter the environment, transfer and spread in microorganisms and produ...

Method used

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  • Preparation method for porous carbon material with high specific surface area
  • Preparation method for porous carbon material with high specific surface area
  • Preparation method for porous carbon material with high specific surface area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 10g of waste paper towels into the porcelain boat and carbonize in a tube furnace at a carbonization temperature of 500°C and a heating rate of 5°C / min for 2 hours; mix and grind the carbide and potassium hydroxide at a mass ratio of 1:4 to make a uniform, Put it into a nickel pot and activate it in a tube furnace, the activation temperature is 850°C, the heating rate is 5°C / min, and it is maintained for 1h. Soak the activated product with hydrochloric acid to remove impurities, vacuum filter, wash with water until neutral, and dry the existing porous carbon material.

Embodiment 2

[0030] Add 10g of waste paper towels into the porcelain boat and carbonize in a tube furnace at a carbonization temperature of 500°C and a heating rate of 5°C / min for 2 hours; mix and grind an appropriate amount of carbide and potassium hydroxide at a mass ratio of 1:4 , placed in a nickel pot and activated in a tube furnace, the activation temperature was 800°C, the heating rate was 5°C / min, and maintained for 1h. Soak the activated product with hydrochloric acid to remove impurities, vacuum filter, wash with water until neutral, and dry the existing porous carbon material.

Embodiment 3

[0032] Put 10g of waste paper towels into the porcelain boat and carbonize in a tube furnace at a carbonization temperature of 500°C and a heating rate of 5°C / min for 2 hours; add an appropriate amount of carbide and potassium hydroxide at a mass ratio of 1:x(x= 0, 1, 2, 3) Mix and grind evenly, put into a nickel pot and activate in a tube furnace, the activation temperature is 850°C, the heating rate is 5°C / min, and maintain for 1h. Soak the activated product with hydrochloric acid to remove impurities, vacuum filter, wash with water until neutral, and dry the existing porous carbon material.

[0033] The adsorption capacity and specific surface area of ​​tetracycline prepared by the porous carbon prepared under different parameters are listed in Table 1 in detail.

[0034] 2, the present invention will be further described below in conjunction with specific implementation examples:

[0035] In the specific embodiment of the present invention, the adsorption performance eval...

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Abstract

The invention relates to a preparation method for a porous carbon material with a high specific surface area and belongs to the technical field of the preparation for an environment function material. The preparation method comprises the following steps: firstly, carbonizing a carbon source under the nitrogen protection; secondly, utilizing a chemical activating agent potassium hydroxide to activate the carbide under the high-temperature calcination condition; lastly, utilizing the hydrochloric acid to remove the impurities, washing with deionized water or hot water till the material is neutral, thereby acquiring the porous carbon material with the high specific surface area. The parameters, such as, appearance, duct distribution, and the like, of the compound material are revealed through various representing methods. The absorbing experiment is utilized to research the property of the porous carbon material for removing the tetracycline antibiotics in the water environment.

Description

technical field [0001] The invention relates to a preparation method of a porous carbon material with a high specific surface area, and belongs to the technical field of preparation of environmental functional materials. Background technique [0002] Tetracycline antibiotics have good antibacterial activity against Gram-positive and Gram-negative serious diseases, so they are widely used in human and animal disease prevention and treatment or as poultry feed additives. However, tetracyclines are poorly digested and absorbed in the body, Therefore, most of them are not involved in metabolism and excreted from the body, and still maintain biological activity. They enter the environment, transfer and spread in microorganisms and produce toxic effects. The abuse of tetracycline has led to unsafe residues in meat agricultural products and ecological environments. Scholars at home and abroad Studies have confirmed the presence of tetracycline antibiotic residues in soil and water ...

Claims

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Application Information

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IPC IPC(8): C01B31/12
Inventor 谢阿田戴江栋何劲松孙骏常忠帅田苏君李春香闫永胜
Owner JIANGSU UNIV
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