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Molecularly imprinted polymer materials and applications for purifying sulfonamides in water

A technology of polymer materials and sulfa drugs, applied in the direction of alkali metal compounds, alkali metal oxides/hydroxides, water pollutants, etc., can solve problems such as inability to filter out agricultural and veterinary drugs, threats to drinking water safety, and complex pollution components , to achieve the effects of high molecular recognition efficiency, convenient preparation and application, and large adsorption capacity

Active Publication Date: 2021-05-18
江苏全给净化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The pollution components caused by pesticides and veterinary drugs are complex and difficult to treat. The existing water purification technology is completely unable to filter out the pesticides and veterinary drugs in the water, and it is easy to cause membrane pollution for a long time, which poses a threat to drinking water safety.

Method used

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  • Molecularly imprinted polymer materials and applications for purifying sulfonamides in water
  • Molecularly imprinted polymer materials and applications for purifying sulfonamides in water

Examples

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Effect test

Embodiment 1

[0033] A molecularly imprinted polymer material for purifying sulfa drugs in water, comprising the following components: 0.2 mol of azobisisobutyronitrile, 1.1 mol of triallyl isocyanurate, and 61 g of azobisisobutyronitrile , 0.6 mol of functional monomers, including 0.3 mol of methacrylic acid and 0.3 mol of hydroxyethyl methacrylate.

[0034] A method for preparing a molecularly imprinted polymer material for purifying sulfa drugs in water, the method steps are as follows:

[0035] S1: Dissolve sulfamethazine as a template molecule in 120mL acetonitrile, ultrasonically disperse for 15 minutes, add functional monomer methacrylic acid, and shake on a shaker for 2.5 hours to form a pre-polymerization solution;

[0036] S2: Then add the hydrophilic functional monomer hydroxyethyl methacrylate and continue to shake for 2 hours, then add the crosslinking agent and stir for 2 hours, then add the initiator and stir for 0.5 hours, the speed is 400rpm;

[0037] S3: Under the protect...

Embodiment 2

[0039] A molecularly imprinted polymer material for purifying sulfa drugs in water, comprising the following components: 0.4 mol of azobisisobutyronitrile, 1.3 mol of triallyl isocyanurate, and 68 g of azobisisobutyronitrile , 0.7 mol of functional monomers, including 0.36 mol of methacrylic acid and 0.34 mol of hydroxyethyl methacrylate.

[0040] A method for preparing a molecularly imprinted polymer material for purifying sulfa drugs in water, the method steps are as follows:

[0041]S1: Dissolve sulfamethazine as a template molecule in 120 mL of acetonitrile, ultrasonically disperse for 25 minutes, add functional monomer methacrylic acid, and shake on a shaker for 1.5 hours to form a pre-polymerization solution;

[0042] S2: Then add the hydrophilic functional monomer hydroxyethyl methacrylate and continue to shake for 2 hours, then add the crosslinking agent and stir for 2 hours, then add the initiator and stir for 0.5 hours, the speed is 600rpm;

[0043] S3: Under the pr...

Embodiment 3

[0045] A molecularly imprinted polymer material for purifying sulfa drugs in water, comprising the following components: 0.3 mol of azobisisobutyronitrile, 1.2 mol of triallyl isocyanurate, and 65 g of azobisisobutyronitrile , 0.65 mol of functional monomers, including 0.34 mol of methacrylic acid and 0.31 mol of hydroxyethyl methacrylate.

[0046] A method for preparing a molecularly imprinted polymer material for purifying sulfa drugs in water, the method steps are as follows:

[0047] S1: Dissolve sulfamethazine as a template molecule in 120 mL of acetonitrile, ultrasonically disperse for 20 minutes, add functional monomer methacrylic acid, and shake on a shaker for 2 hours to form a pre-polymerization solution;

[0048] S2: Then add the hydrophilic functional monomer hydroxyethyl methacrylate and continue to shake for 1 hour, then add the crosslinking agent and stir for 1 hour, then add the initiator and stir for 0.5 hour, the speed is 500rpm;

[0049] S3: Using nitrogen ...

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Abstract

The invention relates to a molecularly imprinted polymer material used for purifying sulfonamide drugs in water. Template molecules, functional monomers and crosslinking agents undergo free radical polymerization under the action of an initiator to form a high degree of crosslinking by emulsion polymerization. microsphere molecular polymer. The present invention proposes a molecularly imprinted polymer material for purifying sulfa drugs in water. By enriching and purifying the target pollutants, the molecularly imprinted polymer material is effective against water pollutants such as sulfamethazine, sulfadiazine, Seven sulfa antibacterial drugs including sulfamethoxazine, sulfisoxazole, sulfathiazole, sulfa-methoxine and sulfamethazine have high adsorption capacity and good selectivity.

Description

technical field [0001] The invention belongs to the technical field of environmental protection purification, and specifically relates to a molecularly imprinted polymer material for enriching and purifying sulfa drugs in water and its application. Background technique [0002] In recent years, some negative effects caused by mass production and abuse of agricultural and veterinary drugs have become increasingly prominent, not only affecting agricultural production, destroying the ecological environment, but also seriously endangering human health. With the mass production and abuse of agricultural and veterinary drugs, a large amount of drug residues are caused, resulting in serious water pollution. Therefore, it is of great significance to develop a simple, fast and efficient method that can purify and remove pesticide and veterinary drug pollutants in water. [0003] Sulfonamides are synthetic antibacterial and bactericidal drugs, which are easy to use, low in price, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F226/06C08F220/06C08F220/20B01J20/26B01J20/28B01J20/30C02F1/28C02F101/38
CPCB01J20/261B01J20/28021B01J2220/4812C02F1/285C02F2101/38C02F2101/40C08F226/06C08F220/06C08F220/20
Inventor 王中有
Owner 江苏全给净化科技有限公司
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