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Adsorption material for water pollution treatment and preparation method thereof

An adsorption material and water pollution technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as poor dispersion and easy accumulation, and achieve enhanced mechanical properties and improved acidity Alkalinity, effect of improving metal adsorption performance

Pending Publication Date: 2021-12-14
桂林清研皓隆复合材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method mainly solves the shortcomings of graphene itself, which is easy to accumulate and has poor dispersion, and prevents local agglomeration, and the prepared adsorption material has high mechanical strength and stability.

Method used

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  • Adsorption material for water pollution treatment and preparation method thereof
  • Adsorption material for water pollution treatment and preparation method thereof
  • Adsorption material for water pollution treatment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 20g chitosan, 3g glacial acetic acid, 5g glutaraldehyde are added to 1000g water and carry out cross-linking, then add 10g cinnamic acid to carry out grafting reaction in the cross-linked chitosan solution, then use the high-speed centrifuge (12000rpm) to obtain The product was centrifuged, washed several times with distilled water and absolute ethanol until it was neutral, and dried. After drying, the product is ground and weighed for future use, so as to obtain the modified chitosan. 20g graphene oxide is added to 180g water, ultrasonic 1h obtains graphene oxide suspension, then 5g glutaraldehyde and 20g modified chitosan and graphene oxide suspension are ultrasonically mixed, and sodium carbonate is added at the same time to adjust the pH value to Neutral, the product is separated by magnetic separation, washed several times, and dried to obtain the adsorption material. Among them, the external magnetic field conditions are: the magnetic field strength is 1T, and th...

Embodiment 2

[0026] 30g chitosan, 3g glacial acetic acid, 5g glutaraldehyde are added to 1000g water and carry out cross-linking, then add 15g cinnamic acid to carry out grafting reaction in the cross-linked chitosan solution, then use the high-speed centrifuge (12000rpm) to obtain The product was centrifuged, washed several times with distilled water and absolute ethanol until it was neutral, and dried. After drying, the product is ground and weighed for future use, so as to obtain the modified chitosan. 15g of graphene oxide was added to 160g of water, ultrasonic 1h obtained graphene oxide suspension, then 3g of glutaraldehyde and 30g of modified chitosan and graphene oxide suspension were ultrasonically mixed, and potassium carbonate was added to adjust the pH value to Neutral, the product is separated by magnetic separation, washed several times, and dried to obtain the adsorption material. Among them, the external magnetic field conditions are: the magnetic field strength is 1.2T, an...

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Abstract

The invention belongs to the technical field of adsorption materials, and discloses an adsorption material for water pollution treatment and a preparation method thereof. The preparation method comprises the following steps: with chitosan serving as a raw material, subjecting chitosan and glutaraldehyde to moderate cross-linking; then grafting cinnamic acid with the cross-linked chitosan through a cross-linking agent so as to obtain modified chitosan; then dissolving graphene oxide in water, and carrying out ultrasonic dissolution to obtain a graphene oxide suspension; then carrying out ultrasonic mixing treatment on the modified chitosan and the graphene oxide suspension, and meanwhile, adjusting a pH value to 7; and carrying out separating, washing and drying by utilizing an external magnetic field condition to obtain the adsorption material. According to the above technical scheme, the defects that graphene is easy to accumulate and poor in dispersity are overcome, and the prepared adsorption material has good mechanical strength and stability.

Description

technical field [0001] The invention relates to the technical field of adsorption materials, in particular to an adsorption material for water pollution treatment and a preparation method thereof. Background technique [0002] Water is the source of life. Our daily life, agricultural production and industrial synthesis are inseparable from water. With the continuous development of industrial economy, the water environment problems are becoming more and more prominent. The main way of water environmental pollution is heavy metal pollutants. Its discharge into the water body will not only poison the environment and affect the ecological balance of the environment, but also seriously affect the health of the human body. The self-cleaning rate of the natural environment is far behind the rate of human pollution. The problem of environmental pollution is imminent. . With the improvement of people's living standards and the enhancement of their own health protection awareness, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/20B01J20/24B01J20/22C02F1/283C02F1/285C02F1/286B01J2220/4812B01J2220/4806B01J2220/4825B01J2220/46C02F2101/20
Inventor 刘果李杰玲
Owner 桂林清研皓隆复合材料研究院有限公司