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Manganese oxide and nitrogen doped block carbon aerogel material as well as preparation and application thereof

A technology of manganese oxide and carbon airgel, which is applied in the direction of airgel preparation, alkali metal oxide/hydroxide, alkali metal compound, etc., can solve the problems of difficult balance between adsorption performance and regeneration stability, and achieve excellent Physical and chemical synergistic adsorption activity, excellent cycle adsorption stability, and improved adsorption activity

Pending Publication Date: 2022-05-13
武汉大学(肇庆)资源与环境技术研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the existing antibiotic adsorption materials are difficult to balance the adsorption performance and regeneration stability, the first purpose of the present invention is to provide a method for preparing manganese oxide@nitrogen-doped bulk carbon airgel materials, aiming to prepare a A material that combines excellent adsorption performance and adsorption stability

Method used

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  • Manganese oxide and nitrogen doped block carbon aerogel material as well as preparation and application thereof
  • Manganese oxide and nitrogen doped block carbon aerogel material as well as preparation and application thereof
  • Manganese oxide and nitrogen doped block carbon aerogel material as well as preparation and application thereof

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Effect test

Embodiment 1

[0052] The preparation method of manganese nitrogen doped carbon airgel material, specifically, the method comprises the following steps:

[0053](1) Preparation of airgel precursor: Weigh 15g of phenolic resin and 3g of Formula 1 and dissolve in 100ml of anhydrous methanol, stir and mix until uniformly dissolved. Then the phenolic resin formula 1 mixed ethanol solution is sealed in a regular container, and placed in a constant temperature water bath (60° C.) at the gel temperature to carry out the sol gelation reaction. The solution just prepared is light yellow (color depth varies with the concentration of the reactant The increase and deepening), the water bath reaction (60 ℃) aging for 7 days, during which the color gradually darkened, and finally the wet gel was taken out. Dry at room temperature (25°C) for 1 day under normal pressure, and then dry in an oven for 1 day (65°C) to obtain a phenolic resin-based organic airgel precursor;

[0054] (2) Potassium permanganate s...

Embodiment 2

[0059] The preparation method of manganese nitrogen doped carbon airgel material, specifically, the method comprises the following steps:

[0060] (1) Preparation of airgel precursor: Weigh 15g of phenolic resin and 3g of Formula 1 and dissolve in 100ml of anhydrous methanol, stir and mix until uniformly dissolved. Then the phenolic resin formula 1 mixed ethanol solution is sealed in a regular container, and placed in a constant temperature water bath (60° C.) at the gel temperature to carry out the sol gelation reaction. The solution just prepared is light yellow (color depth varies with the concentration of the reactant The increase and deepening), the water bath reaction aging (60 ° C) for 7 days, during which the color gradually darkened, and finally the gel was taken out. Dry at room temperature (25°C) for 1 day under normal pressure, and then dry in an oven for 1 day (65°C) to obtain a phenolic resin-based organic airgel precursor;

[0061] (2) Potassium permanganate so...

Embodiment 3

[0066] The preparation method of manganese nitrogen doped carbon airgel material, specifically, the method comprises the following steps:

[0067] (1) Preparation of airgel precursor: Weigh 15g of phenolic resin and 3g of Formula 1 and dissolve in 100ml of anhydrous methanol, stir and mix until uniformly dissolved. Then the phenolic resin formula 1 mixed ethanol solution is sealed in a regular container, and placed in a constant temperature water bath (60° C.) at the gel temperature to carry out the sol gelation reaction. The solution just prepared is light yellow (color depth varies with the concentration of the reactant The increase and deepening), the water bath reaction aging (60 ° C) for 7 days, during which the color gradually darkened, and finally the gel was taken out. Dry at room temperature (25°C) for 1 day under normal pressure, and then dry in an oven for 1 day (65°C) to obtain a phenolic resin-based organic airgel precursor;

[0068] (2) Potassium permanganate so...

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Abstract

The invention belongs to the field of wastewater treatment, and particularly relates to a preparation method of a manganese oxide-nitrogen-doped block carbon aerogel material, which comprises the following steps: carrying out gelation reaction on phenolic resin in methanol to prepare a block precursor, then loading a manganese source in the block precursor, and carrying out calcination treatment to obtain the manganese oxide-nitrogen-doped block carbon aerogel material. The manganese oxide and nitrogen doped block carbon aerogel material is prepared. The invention also comprises the material prepared by the preparation method and application of the material in tetracycline antibiotics. The invention innovatively finds that the adsorption activity of the prepared material can be improved by further cooperating with manganese source roasting treatment under the gelation of the phenolic resin and the compound shown in the formula 1 in methanol, and the material is beneficial to recovery and excellent in cycling stability.

Description

technical field [0001] The invention relates to the field of waste water treatment, in particular to the field of antibiotic waste water adsorption materials. Background technique [0002] In recent years, carbon aerogels have attracted researchers' attention due to their wide applicability in various fields, such as solar cells, supercapacitors, electrochemistry, and environmental science. Airgel has a three-dimensional (3D) network interconnected pore structure, which can achieve high water absorption and provide a large specific surface area for adsorption, making carbon aerogels more and more popular in the adsorption of heavy metals and organic pollutants. s concern. However, the adsorption capacity of carbon aerogels for pollutants in wastewater is still limited. Therefore, the physical and chemical properties of carbon aerogels must be improved to further remove pollutants in wastewater. In recent years, carbon aerogels have been doped Modification to obtain unique ...

Claims

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Application Information

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IPC IPC(8): B01J20/06B01J20/30B01J20/28B01J13/00C02F1/28C02F101/34C02F101/38
CPCB01J20/06B01J20/02B01J20/28047B01J20/28042B01J20/28061B01J20/28083B01J20/28071B01J13/0091C02F1/281C02F2101/38C02F2101/34
Inventor 侯浩波陈家骜李嘉豪曾天宇曾庆媛
Owner 武汉大学(肇庆)资源与环境技术研究院
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