Magnetic gel ball adsorption material and preparation method thereof

A technology of adsorption materials and gel balls, applied in the field of magnetic gel ball adsorption materials and its preparation, can solve the problems of low adsorption efficiency, difficult separation, and non-recyclable use

Pending Publication Date: 2021-05-07
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional adsorption materials include activated carbon, clay, zeolite and biomass materials, which are often used in the form of powder, which makes the final separation of adsorption materials very difficult
Traditional adsorption materials often have the disadvantages of low adsorption efficiency, poor stability, difficult separation, and inability to be recycled. With the rapid development of modern society, environmental problems have encountered unprecedented challenges.
[0003] In order to solve the actual pollution problem of existing adsorbent materials, it is imperative to develop adsorbent materials with high adsorption efficiency, good stability, easy separation and recyclability

Method used

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  • Magnetic gel ball adsorption material and preparation method thereof
  • Magnetic gel ball adsorption material and preparation method thereof
  • Magnetic gel ball adsorption material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] After heating 50 g of deionized water to 85° C., 1 g of ferrous chloride tetrahydrate and 2.5 g of ferric chloride hexahydrate were added into the deionized water, stirred and mixed evenly. Then add 5g of 25% ammonia water and 0.5g of potassium humate into the mixture, continue stirring for 1 hour, stop heating, cool to room temperature, and filter to obtain a black precipitate. The black precipitate was washed three times with water and ethanol, and dried in vacuum at 40° C. for 8 hours to obtain a magnetic dopant.

[0035] 10% polyvinyl alcohol solution, 3% sodium alginate solution, 1% magnetic dopant water dispersion solution, 5% boric acid solution and 4% calcium chloride solution were respectively prepared in mass fraction. 5% boric acid solution and 4% calcium chloride solution are mixed according to the mass ratio of 1:1 to prepare borate calcium chloride solution.

[0036] Mix 10g of 10% polyvinyl alcohol solution and 10g of 3% sodium alginate solution at 40°C ...

Embodiment 2

[0038] After heating 75 g of deionized water to 90° C., 1.5 g of ferrous chloride tetrahydrate and 3.8 g of ferric chloride hexahydrate were added into the deionized water, and stirred and mixed evenly. Then 7.5g of 25% ammonia water and 0.75g of potassium humate were added to the mixture, and after stirring for 2 hours, the heating was stopped, cooled to room temperature, and filtered to obtain a black precipitate. The black precipitate was washed 4 times with water and ethanol, and dried in vacuum at 50° C. for 10 h to obtain a magnetic dopant.

[0039] 10% polyvinyl alcohol solution, 3% sodium alginate solution, 3% magnetic dopant water dispersion solution, 6.5% boric acid solution and 5% calcium chloride solution were prepared respectively. Then, 6.5% boric acid solution and 5% calcium chloride solution were mixed according to the mass ratio of 1:1 to prepare borate calcium chloride solution.

[0040]15g of 10% polyvinyl alcohol solution and 15g of 3% sodium alginate solu...

Embodiment 3

[0042] After heating 100 g of deionized water to 95° C., 2 g of ferrous chloride tetrahydrate and 5.2 g of ferric chloride hexahydrate were added into the deionized water, stirred and mixed evenly. Then, 10 g of 25% ammonia water and 1 g of potassium humate were added to the mixture, and after stirring for 3 hours, the heating was stopped, cooled to room temperature, and filtered to obtain a black precipitate. The black precipitate was washed 5 times with water and ethanol, and dried in vacuum at 60° C. for 12 hours to obtain a magnetic dopant.

[0043] Prepare 10% polyvinyl alcohol solution, 3% sodium alginate solution, 5% magnetic dopant aqueous dispersion solution, 8% boric acid solution and 6% calcium chloride solution. Then, 8% boric acid solution and 6% calcium chloride were mixed according to a mass ratio of 1:1 to prepare boric acid calcium chloride solution.

[0044] 20g of 10% polyvinyl alcohol solution and 20g of 3% sodium alginate solution were uniformly mixed at ...

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Abstract

The invention discloses a magnetic gel ball adsorption material and a preparation method thereof, polyvinyl alcohol and boric acid as well as alginate and soluble calcium salt are respectively cross-linked to form a three-dimensional double-cross-linked structure in a physical double-cross-linking manner under the condition that boric acid and soluble calcium salt are used as double-cross-linking agents; and a humate doping agent is doped into the double-crosslinking network structure, and finally the magnetic gel ball adsorption material is generated. The magnetic gel ball adsorption material synthesized by adopting the method has the advantages of green and environment-friendly synthetic raw materials, simple preparation process, low operation requirement and low cost, and the prepared adsorption material has the advantages of high removal rate, easiness in separation, good stability and recyclability, and can meet the requirements of actual production.

Description

technical field [0001] The invention belongs to the technical field of material research and development and preparation, and in particular relates to a magnetic gel ball adsorption material and a preparation method thereof. Background technique [0002] Traditional adsorption materials include activated carbon, clay, zeolite, and biomass materials, which are often used in the form of powder, which makes the final separation of adsorption materials very difficult. Traditional adsorption materials often have the disadvantages of low adsorption efficiency, poor stability, difficult separation, and inability to be recycled. With the rapid development of modern society, environmental problems have encountered unprecedented challenges. [0003] In order to solve the actual pollution problem of existing adsorbent materials, it is imperative to develop adsorbent materials with high adsorption efficiency, good stability, easy separation and recyclable use. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/34B01J20/30
CPCB01J20/24B01J20/267B01J20/28009B01J20/28047B01J20/04B01J20/06B01J20/3475
Inventor 牛育华韩星星黄良仙宋洁孙永会韩玉英赵栋李龙
Owner SHAANXI UNIV OF SCI & TECH
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