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Molecularly imprinted polymer and preparation method and application thereof

A molecular imprinting and polymer technology, applied in the field of environmental pollution remediation, can solve the problems of selective removal of hindered molecular imprinting technology, inflexible chemical structure of polybrominated diphenyl ethers, difficult template removal, etc., and achieves excellent selectivity, easy chemical stability, Combined with kinetic fast effects

Active Publication Date: 2022-02-01
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although MIPs have a strong selectivity advantage, it is still a challenge to prepare molecularly imprinted materials suitable for the selective removal of hydrophobic organics in soil leaching wastewater due to the difficulty of template removal, easy leakage of templates, and easy waste of templates. The inflexible and relatively rigid chemical structure of PBDEs makes it difficult to act as a template for imprinting, which seriously hinders the progress of molecular imprinting technology for the selective removal of PBDEs

Method used

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  • Molecularly imprinted polymer and preparation method and application thereof
  • Molecularly imprinted polymer and preparation method and application thereof
  • Molecularly imprinted polymer and preparation method and application thereof

Examples

Experimental program
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Embodiment 1

[0047] (1) Take 4mmol of methacrylic acid (MAA) and 30mL of toluene in a 100ml blue cap bottle filled with 10ml of acetonitrile, and stir magnetically at room temperature (25°C) at 300rpm for 2h to obtain a pre-polymerization solution.

[0048] (2) Add 30 mg of azobisisobutyronitrile (AIBN) and 12 mmol of cross-linking agent ethylene glycol dimethacrylate (EGDMA) into the pre-polymerization solution obtained in step (1), and stir magnetically at room temperature and 300 rpm Mix well for 0.5h, take out the magnetic stirrer, connect the nitrogen stripping device, and polymerize in a water bath at 65°C for 24h under the protection of nitrogen.

[0049] (3) Rinse and separate the solid material from the product obtained in step (2) in a suction filtration device with ultrapure water and absolute ethanol, and put it in a bottle with a blue cap. Then add a methanol solution containing 10% (v / v) acetic acid (the volume ratio of acetic acid to methanol is 1:9) and stir to elute until ...

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Abstract

The invention discloses a molecularly imprinted polymer and a preparation method and application thereof. The molecularly imprinted polymer is obtained by polymerizing raw materials comprising the following components: a fragment template, a functional monomer and a cross-linking agent, wherein the fragment template comprises toluene. According to the method, the synthesis steps are simplified, and the obtained molecularly imprinted polymer has high selective adsorption capacity on various polybrominated diphenyl ether pollutants, has high recovery capacity on the surfactant and can be used for removing low-brominated polybrominated diphenyl ether in soil leaching waste liquid.

Description

technical field [0001] The invention relates to the technical field of environmental pollution remediation, in particular to a molecularly imprinted polymer and its preparation method and application. Background technique [0002] The release of polybrominated diphenyl ethers can lead to long-term pollution of soil and groundwater. It is one of the typical hydrophobic organic pollutants in the soil of e-waste dismantling areas. It has potential toxicity, mutagenicity, carcinogenicity and bioaccumulation in the food chain. ability. The slow degradation of PBDEs through natural decay or (photo)chemical / biological processes poses a serious threat to human health and ecological security. Therefore, it is urgent to completely remove PBDEs in soil and elution waste. The processes currently used for soil remediation all have some unavoidable disadvantages such as high cost (thermal treatment), high disturbance of soil texture (thermal treatment), low efficiency (pumping and handli...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30B01D15/08
CPCB01J20/268B01J20/3057B01J20/3064B01D15/08
Inventor 卢桂宁马遥谢春生杜晓冻范盛党志
Owner SOUTH CHINA UNIV OF TECH
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