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Method and application of green solvent for preparing airgel-like environmental functional materials

A technology of functional materials and green solvents, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of unfavorable application of powder particles, low production efficiency, and inability to degrade, so as to promote Application and upgrade, low crystallinity, easy to scale up effect

Active Publication Date: 2022-04-01
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many kinds of industrial wastewater with complex components. The wastewater may contain oil, heavy metal ions, ionic dyes, etc. Direct discharge will cause serious pollution to rivers, lakes and soil. The existing technology generally needs to treat the wastewater before discharging it. Purification treatment, the use of adsorbents to adsorb pollutants in wastewater is a common method in wastewater purification treatment, but the existing adsorbent preparation process is complex, cumbersome, time-consuming, low production efficiency, and the powder is not granular. Conducive to application, can not be recycled after use, can not be degraded and other disadvantages

Method used

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  • Method and application of green solvent for preparing airgel-like environmental functional materials
  • Method and application of green solvent for preparing airgel-like environmental functional materials
  • Method and application of green solvent for preparing airgel-like environmental functional materials

Examples

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Effect test

Embodiment 1

[0037] A method for preparing an airgel-like environmental functional material by a green solvent, comprising the following preparation steps:

[0038] Step 1. Recycle the discarded corn stalks in the crops, and after natural air drying, remove the leaves, outer skin and stem nodes of the corn stalks to obtain corn pith, and cut the corn pith to a length of 1 cm for later use;

[0039] Step 2: Weigh 56g of choline chloride and 36g of organic carboxylic acid and put them in the same beaker, the organic carboxylic acid is oxalic acid, put it in an oven at 120°C, melt the reagent in the beaker completely, and then take out the beaker Cool the molten reagent to obtain a deep eutectic solvent, add 270 g of distilled water to the beaker, stir with a glass rod, and make it fully mixed to obtain a mixed solution;

[0040] Step 3. Take 100mL of the mixed solution, add three pieces of corn pith treated in step 1, and react in a water bath at 100°C for 2 hours, then take out the corn pit...

Embodiment 2

[0047]A method for preparing an airgel-like environmental functional material with a green solvent. The difference between Example 2 and Example 1 is that in step 3, corn pith is reacted in a water bath at 60°C. Other preparations of the preparation method of Example 2 Step is identical with embodiment 1.

Embodiment 3

[0049] A method for preparing an airgel-like environmental functional material with a green solvent. The difference between Example 3 and Example 1 is that in step 3, the corn pith is reacted in a water bath at 70°C. Other preparations of the preparation method of Example 3 Step is identical with embodiment 1.

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Abstract

The invention relates to the technical field of wastewater adsorption materials, in particular to a method for preparing an airgel-like environmental functional material with a green solvent and its application, which includes step 1, obtaining corn pith; step 2, mixing choline chloride and organic carboxylic acid , heating, choline chloride and organic carboxylic acid are melted completely, cooling, add distilled water, and stir evenly, make mixed solution; Step 3, add corn pith to mixed solution and carry out sufficient reaction, fully react corn pith after completion of reaction Wash until neutral, freeze and dry; step 4, mix sodium phosphate solution, tetramethylpiperidine oxide and sodium chlorite to form a mixed solution, add sodium hypochlorite and sodium phosphate mixed solution to the mixed solution, add corn After overnight, the solution was reacted under the shaker, and finally the corn pith was washed, frozen and dried. The prepared environmental functional material has a good adsorption effect on oil substances, dye ions and the like in waste water.

Description

technical field [0001] The invention relates to the technical field of wastewater adsorption materials, in particular to a method for preparing an airgel-like environmental functional material with a green solvent and its application. Background technique [0002] Industrial wastewater (industrial wastewater) includes production wastewater, production sewage and cooling water. pollutants. There are many kinds of industrial wastewater with complex components. The wastewater may contain oil, heavy metal ions, ionic dyes, etc. Direct discharge will cause serious pollution to rivers, lakes and soil. The existing technology generally needs to treat the wastewater before discharging it. Purification treatment, the use of adsorbents to adsorb pollutants in wastewater is a common method in wastewater purification treatment, but the existing adsorbent preparation process is complex, cumbersome, time-consuming, low production efficiency, and the powder is not granular. It is good fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/28B01J20/30C02F1/28C02F101/20C02F101/30C02F101/32C02F101/34
CPCB01J20/24B01J20/22B01J20/28047C02F1/286C02F1/285B01J2220/4812B01J2220/4825B01J2220/4806C02F2101/20C02F2101/308C02F2101/203C02F2101/32C02F2101/34
Inventor 彭丹
Owner SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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