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Porous carbon-based adsorbing material as well as preparation method and application thereof

An adsorption material, porous carbon technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of limited treatment effect and high preparation cost of carbon-based adsorption materials, short time to achieve equilibrium, low price Inexpensive, mild reaction and operating conditions

Active Publication Date: 2021-04-20
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims at the problem of antibiotic pollution and the problems of high preparation cost and limited treatment effect of existing carbon-based adsorption materials, and provides a porous carbon-based adsorption material, which can realize resource utilization of solid waste such as waste foam, and the obtained porous carbon-based adsorption The material can exhibit excellent adsorption performance, and the preparation method involved is simple, the reaction conditions are mild, and the cost is low, which is suitable for popularization and application

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  • Porous carbon-based adsorbing material as well as preparation method and application thereof
  • Porous carbon-based adsorbing material as well as preparation method and application thereof
  • Porous carbon-based adsorbing material as well as preparation method and application thereof

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Embodiment 1

[0033] A kind of porous carbon-based adsorption material adsorbent, its preparation method comprises the steps:

[0034] 1) 5g of waste foam and 319g of carbon tetrachloride are subjected to a Friedel-Crafts reaction under the catalytic conditions of 10g of anhydrous aluminum trichloride, and the crude product obtained by the reaction is washed alternately with ethanol and ethyl acetate, and can be obtained after filtering Cross-linked polystyrene resin;

[0035] 2) Add 25g triethanolamine to the gained 25g cross-linked polystyrene resin, reflux reaction 1h under the condition of 80 ℃, after filtering, the crude product will be washed 3 times with absolute ethanol, each washing time is 1h, and the washing temperature is 60°C; then put it into a 60°C vacuum oven and dry for 12 hours to obtain the modified cross-linked polystyrene resin;

[0036] 3) Put the obtained modified cross-linked polystyrene into a tube furnace with nitrogen gas to heat up and calcinate at a rate of 2°C...

Embodiment 2

[0041] A kind of porous carbon-based adsorption material adsorbent, its preparation method comprises the steps:

[0042] 1) 5g of waste foam and 319g of carbon tetrachloride are reacted under the catalysis of 10g of anhydrous aluminum trichloride, and the crude product obtained by the reaction is alternately washed with ethanol and ethyl acetate, and cross-linked polystyrene can be obtained after filtering resin;

[0043] 2) Add 50 g of triethanolamine to the obtained 25 g of cross-linked polystyrene resin, reflux at 80° C. for 3 h, filter to obtain the crude product and wash it with absolute ethanol for 3 times, each washing time is 1 h, and the washing temperature is 60° C. ; Then put it into a vacuum drying oven at 60°C for 12 hours to obtain the modified cross-linked polystyrene resin;

[0044] 3) After the drying is completed, put the modified cross-linked polystyrene into a tube furnace with nitrogen to raise the temperature at a rate of 2°C / min. The holding time is 60m...

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Abstract

The invention discloses a preparation method of a porous carbon-based adsorbing material, wherein the method comprises the steps: carrying out crosslinking reaction and triethanolamine modification by using waste foam and byproduct carbon tetrachloride in the methane chloride production process as main raw materials to prepare modified crosslinked polystyrene resin; and carbonizing by adopting a temperature programming system to prepare the microporous porous carbon-based material. According to the preparation method, a simple temperature programming system is adopted to realize regulation and optimization of the pore structure of the modified crosslinked polystyrene resin carbonization product, so that the specific surface area of the obtained porous carbon-based adsorption material and the adsorption performance of the porous carbon-based adsorption material to antibiotics can be remarkably improved; and the related preparation method is simple and relatively low in cost, can realize resource utilization of solid wastes such as waste foam and the like, and has important economic and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of new chemical materials, and in particular relates to a porous carbon-based adsorption material and its preparation method and application. Background technique [0002] In recent years, the problem of environmental pollution has been paid more and more attention by the country, and various organic pollutants in water bodies have caused serious environmental problems. Among them, the residue of antibiotics is one of the research hotspots. First of all, most of the antibiotics used in animal husbandry will be brought into the soil with excrement and seep into the groundwater to form serious pollution. Secondly, the wastewater discharge of pharmaceutical companies is also one of the reasons for antibiotic pollution in water bodies. In recent years, excessive levels of antibiotics have been detected in surface water, groundwater, and even drinking water. Residual antibiotics in water will also cause great ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/30
Inventor 高家俊蔡苑尹爽严玮琳郭琳姜兴茂
Owner WUHAN INSTITUTE OF TECHNOLOGY