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Magnetic carboxylation nano-crystalline cellulose amino-functionalization surface molecularly imprinted polymer

A technology of surface molecular imprinting and amino functionalization, applied in the directions of alkali metal compounds, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problems of low processing cost, low processing efficiency, high cost, and achieve large adsorption capacity effect with surface area, low processing cost and high selectivity

Active Publication Date: 2017-09-08
ZHEJIANG OCEAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of low processing efficiency, high cost, and risk of contamination in the existing methods for processing fluoroquinolones, the purpose of the present invention is to provide a magnetic carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymer, which can Adsorbs fluoroquinolones in water, and has high selectivity to fluoroquinolones, can be reused through adsorption-elution, low processing cost, and no pollution to the environment

Method used

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  • Magnetic carboxylation nano-crystalline cellulose amino-functionalization surface molecularly imprinted polymer
  • Magnetic carboxylation nano-crystalline cellulose amino-functionalization surface molecularly imprinted polymer
  • Magnetic carboxylation nano-crystalline cellulose amino-functionalization surface molecularly imprinted polymer

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Embodiment 1

[0036] Such as figure 1 As shown, a magnetic carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymer, with magnetic carboxylated nanocrystalline cellulose Fe 3 o 4 @CCNs is used as a carrier, ofloxacin OFX is used as a template molecule, glycidyl methacrylate GMA and tetraethylenepentamine TEPA are used as functional monomers to form a polymer through polymerization reaction, and the template molecules in the polymer are eluted to obtain magnetic properties Carboxylated nanocrystalline cellulose amino functionalized surface molecularly imprinted polymer Fe 3 o 4 @CCNs @MIPs.

[0037] A method for preparing magnetically carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymers, comprising the following steps:

[0038] (1) Dissolve 1 mmol of OFX in 20 ml of acetonitrile, add 150 mmol of tetraethylenepentamine, stir and react at 60°C for 60 minutes, so that template molecules and functional mon...

Embodiment 2

[0050] Such as figure 1 As shown, a magnetic carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymer, with magnetic carboxylated nanocrystalline cellulose Fe 3 o 4 @CCNs is used as a carrier, ofloxacin OFX is used as a template molecule, glycidyl methacrylate GMA and tetraethylenepentamine TEPA are used as functional monomers to form a polymer through polymerization reaction, and the template molecules in the polymer are eluted to obtain magnetic properties Carboxylated nanocrystalline cellulose amino functionalized surface molecularly imprinted polymer Fe 3 o 4 @CCNs @MIPs.

[0051] A method for preparing magnetically carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymers, comprising the following steps:

[0052] (1) Dissolve 1.1 mmol of OFX in 22 ml of acetonitrile, add 165 mmol of tetraethylenepentamine, stir and react at 65°C for 75 minutes, so that template molecules and functional m...

Embodiment 3

[0064] Such as figure 1 As shown, a magnetic carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymer, with magnetic carboxylated nanocrystalline cellulose Fe 3 o 4 @CCNs is used as a carrier, ofloxacin OFX is used as a template molecule, glycidyl methacrylate GMA and tetraethylenepentamine TEPA are used as functional monomers to form a polymer through polymerization reaction, and the template molecules in the polymer are eluted to obtain magnetic properties Carboxylated nanocrystalline cellulose amino functionalized surface molecularly imprinted polymer Fe 3 o 4 @CCNs @MIPs.

[0065] A method for preparing magnetically carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymers, comprising the following steps:

[0066] (1) Dissolve 1.2 mmol of OFX in 24 ml of acetonitrile, add 180 mmol of tetraethylenepentamine, stir and react at 70°C for 90 minutes, so that template molecules and functional m...

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Abstract

The invention belongs to the technical field of molecularly imprinted polymers, and particularly discloses a magnetic carboxylation nano-crystalline cellulose amino-functionalization surface molecularly imprinted polymer. Magnetic carboxylation nano-crystalline cellulose Fe3O4@CCNs serves as a carrier, ofloxacin OFX serves as template molecules, glycidyl methacrylate GMA serves as a functional monomer, and through a polymerization reaction, the magnetic carboxylation nano-crystalline cellulose amino-functionalization surface molecularly imprinted polymer Fe3O4@CCNs@MIPs is formed. Fluoroquinolone drugs in a water body can be selectively extracted, and include ofloxacin OFX, lomefloxacin LOM, gatifloxacin GAT, sarafloxacin SARA, marbofloxacin MARBO, orbifloxacin OBX, difloxacin DFX, ciprofloxacin CIP, enrofloxacin ENRO, sparfloxacin SPX, and moxifloxacin MFX, the recovery rate reaches 81.2%-93.7%, and the adsorption capacity reaches 33 mg / g after adsorption / elution are repeated seven times.

Description

technical field [0001] The invention belongs to the technical field of molecularly imprinted polymers, and in particular relates to a magnetic carboxylated nanocrystalline cellulose amino-functionalized surface molecularly imprinted polymer. Background technique [0002] Fluoroquinolones FQs are a class of artificially synthesized broad-spectrum, high-efficiency antibacterial drugs, which are widely used as antibiotics taken by humans, or as veterinary drugs and feedstuffs because of their advantages such as good absorption, long half-life, and quick antibacterial and bactericidal effects. Additives are used in large quantities in animals. After ingestion of fluoroquinolones by passive objects, except for a small amount of 10% to 20% remaining in the body, most of the fluoroquinolones will be excreted with animal or human feces and urine and flow into the natural water environment through sewage treatment and other links . These water bodies will be used as domestic water ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/32C08F222/14C08J9/26B01J20/26B01J20/28C02F1/28C02F101/34C02F101/36C02F101/38
CPCB01J20/06B01J20/24B01J20/268C02F1/288C02F2101/34C02F2101/36C02F2101/38C08F220/32C08F220/325C08J9/26C08J2201/0424C08J2333/14C08F222/102
Inventor 欧阳小琨孙骁潇王艳飞胡兆红杨立业
Owner ZHEJIANG OCEAN UNIV
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