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Preparation method of modified 3D porous carbon composite adsorption material

A composite adsorption material, porous carbon technology, applied in chemical instruments and methods, adsorption water/sewage treatment, alkali metal compounds, etc., can solve the expensive preparation process of organogel carbonization equipment, cumbersome template synthesis process, staff and Environmental hazards, etc.

Inactive Publication Date: 2020-08-11
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Metals in the catalytic activation method are easy to enter and stay inside the porous carbon, and the organogel carbonization method is expensive and the preparation process is cumbersome, and the precursors of the organoaerogel use toxic organic substances such as phenols and aldehydes, which are harmful to the staff and the environment. certain danger
The template synthesis process of the traditional template method is cumbersome and expensive, which limits its large-scale application in industrial production.

Method used

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  • Preparation method of modified 3D porous carbon composite adsorption material
  • Preparation method of modified 3D porous carbon composite adsorption material
  • Preparation method of modified 3D porous carbon composite adsorption material

Examples

Experimental program
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Effect test

Embodiment 1

[0022] In this implementation, the prepared modified 3D porous carbon composite adsorption material C-K 2 O-Bi 2 o 3 -BaO, C, K 2 O. Bi 2 o 3 The doping molar ratio with BaO is 7:1:2:1. The preparation method steps are as follows:

[0023] 1) Weigh potassium nitrate, barium nitrate, and bismuth nitrate according to the molar ratio and add them to a beaker, dissolve them in distilled water, add ammonia water under magnetic stirring to adjust the pH value of the solution to 12, and adjust the pH value with ammonia solution after fully stirring.

[0024] 2) The bamboo and wood activated carbon powder is ball-milled to a fine powder of 1 μm, and then added to the solution, and after being fully stirred, the pH is adjusted to 12 with ammonia solution again.

[0025] 3) Put the solution in an ultrasonic and microwave combined reactor for reaction, and use ultrasonic 1200W+microwave 1000W for a dual-functional reaction for 30 minutes.

[0026] 4) After the reaction, put the sa...

Embodiment 2

[0028] In this example, the prepared modified 3D porous carbon composite adsorption material C-K 2 O-Bi 2 o 3 -BaO, C, K 2 O. Bi 2 o 3 The doping molar ratio with BaO is 7:1:1:1, and the preparation method is the same as in Example 1 to obtain the modified 3D porous carbon composite adsorption material C-K 2 O-Bi 2 o 3 -BaO(7-1-1-1).

Embodiment 3

[0030] In this example, the prepared modified 3D porous carbon composite adsorption material C-K 2 O-Bi 2 o 3 -BaO, C, K 2 O. Bi 2 o 3 The doping molar ratio with BaO is 7:1:1:2, the preparation method is the same as in Example 1, and the modified 3D porous carbon composite adsorption material C-K is obtained 2 O-Bi 2 o 3 -BaO(7-1-1-2).

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Abstract

The invention discloses a preparation method of a modified 3D porous carbon composite adsorption material. The preparation method comprises the following steps: dissolving potassium salt, barium saltand bismuth salt in water, uniformly mixing, adding activated carbon, uniformly mixing, and reacting in an ultrasonic microwave combined reactor to obtain the modified 3D porous carbon composite adsorbing material. According to the invention, 3D porous carbon is used as a main carrier substance, K2O-Bi2O3-BaO with certain content and composition is used as a filler of the adsorbing material, and the composite adsorbing material with excellent performance is prepared by a latest developed ultrasonic microwave combination method. Meanwhile, K2O-Bi2O3-BaO substance ions are doped in different molar ratios to carry out modification research on the porous carbon adsorption material. The better composite 3D porous carbon component adsorbent material is obtained. A series of porous carbon composite materials with different compositions have different adsorption capacities, removal time and substance compositions for a Pb (II) ion-containing heavy metal ion solution.

Description

technical field [0001] The invention relates to the technical field of preparation of activated carbon adsorption materials through composite modification, in particular to a preparation method of modified 3D porous carbon composite adsorption materials. Background technique [0002] In recent years, with the rapid development of economy and science and technology, porous carbon materials are a kind of non-polluting and environmentally friendly adsorbent materials. A large number of experiments and studies have shown that composite porous carbon materials have better adsorption and catalytic performance than single porous carbon materials due to their unique properties. Porous carbon composite adsorption materials are widely used in adsorption separation, sewage treatment, gas purification and other fields due to their rich pore structure, ultra-high specific surface area, and rich surface functional groups. [0003] 3D porous carbon materials are widely concerned because o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/20
CPCB01J20/20B01J20/28014C02F1/283C02F2101/20
Inventor 阳杰杨标王玉张凌云肖新国李东陆井李少波王敬泽
Owner HEFEI UNIV
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