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Magnetic nano-crystal cellulose grafted graphene oxide surface molecularly imprinted polymer

A nanocrystalline cellulose and graphene surface technology, applied in alkali metal compounds, alkali metal oxides/hydroxides, inorganic chemistry, etc., can solve the problems of low processing efficiency, low processing cost, and easy pollution, and achieve Low treatment cost, high selectivity, and no pollution to the environment

Active Publication Date: 2017-09-05
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems of low processing efficiency, high cost, and risk of contamination in existing methods for processing fluoroquinolones, the purpose of the present invention is to provide a molecularly imprinted polymer on the surface of magnetic nanocrystalline cellulose grafted graphene oxide, which can Adsorbs fluoroquinolones in water, and has high selective adsorption for fluoroquinolones, can be reused through adsorption-elution, low processing cost, and no pollution to the environment

Method used

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  • Magnetic nano-crystal cellulose grafted graphene oxide surface molecularly imprinted polymer

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Embodiment 1

[0040] Such as figure 1 As shown, a magnetic nanocrystalline cellulose grafted graphene oxide surface molecularly imprinted polymer, with magnetic nanocrystalline cellulose grafted graphene oxide composite Fe 3 o 4 @GO-g-CNC is used as a carrier, ofloxacin OFX is used as a template molecule, and methacrylic acid MAA is used as a functional monomer to form a polymer through polymerization reaction, and the template molecules in the polymer are eluted to obtain magnetic nanocrystalline cellulose branches Molecularly imprinted polymer Fe attached to graphene oxide surface 3 o 4 @GO-g-CNC @MIPs.

[0041] A method for preparing a magnetic nanocrystalline cellulose grafted graphene oxide surface molecularly imprinted polymer, comprising the following steps:

[0042] (1) Dissolve 1 mmol of OFX in 10 ml of dimethyl sulfoxide, add 4 mmol of MAA, stir at a speed of 30 r / min for 30 min to fully pre-assemble template molecules and functional monomers, and make a pre-assembly solution;...

Embodiment 2

[0055] Such as figure 1 As shown, a magnetic nanocrystalline cellulose grafted graphene oxide surface molecularly imprinted polymer, with magnetic nanocrystalline cellulose grafted graphene oxide composite Fe 3 o 4 @GO-g-CNC is used as a carrier, ofloxacin OFX is used as a template molecule, and methacrylic acid MAA is used as a functional monomer to form a polymer through polymerization reaction, and the template molecules in the polymer are eluted to obtain magnetic nanocrystalline cellulose branches Molecularly imprinted polymer Fe attached to graphene oxide surface 3 o 4 @GO-g-CNC @MIPs.

[0056] A method for preparing a magnetic nanocrystalline cellulose grafted graphene oxide surface molecularly imprinted polymer, comprising the following steps:

[0057] (1) Dissolve 1.1 mmol of OFX in 11 ml of dimethyl sulfoxide, add 4.4 mmol of methacrylic acid MAA, stir at 42 r / min for 42 min to fully pre-assemble template molecules and functional monomers, and make a pre-assembly...

Embodiment 3

[0070] Such as figure 1 As shown, a magnetic nanocrystalline cellulose grafted graphene oxide surface molecularly imprinted polymer, with magnetic nanocrystalline cellulose grafted graphene oxide composite Fe 3 o 4 @GO-g-CNC is used as a carrier, ofloxacin OFX is used as a template molecule, and methacrylic acid MAA is used as a functional monomer to form a polymer through polymerization reaction, and the template molecules in the polymer are eluted to obtain magnetic nanocrystalline cellulose branches Molecularly imprinted polymer Fe attached to graphene oxide surface 3 o 4 @GO-g-CNC @MIPs.

[0071] A method for preparing a magnetic nanocrystalline cellulose grafted graphene oxide surface molecularly imprinted polymer, the steps are as follows:

[0072] (1) Dissolve 1.2mmol of OFX in 12ml of dimethyl sulfoxide and add 4.8mmol of MAA, stir at 45r / min for 45min to fully preassemble template molecules and functional monomers to prepare a preassembly solution;

[0073] (2) T...

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Abstract

The invention belongs to the technical field of molecularly imprinted polymers, and specifically discloses a magnetic nano-crystal cellulose grafted graphene oxide surface molecularly imprinted polymer. A magnetic nano-crystal cellulose grafted graphene oxide compound (Fe3O4@GO-g-CNC) is taken as the carrier, ofloxacin OFX is taken as the template molecule, methacrylic acid (MMA) is taken as the functional monomer, and the polymer is obtained through polymerization reactions. Then the template molecules in the polymer are eluted to obtain the magnetic nano-crystal cellulose grafted graphene oxide surface molecularly imprinted polymer (Fe3O4@GO-g-CNC@MIPs). The provided Fe3O4@GO-g-CNC@MIPs has a large adsorption capacity of graphene, at the same time, has a space structure and binding sites completely matched with OFX, is capable of adsorbing fluoroquinolone in water, has highly selective adsorption on fluoroquinolone, and can be repeatedly used through adsorption-elution, and thus the processing cost is low.

Description

technical field [0001] The invention belongs to the technical field of molecularly imprinted polymers, in particular to a molecularly imprinted polymer on the surface of magnetic nanocrystalline cellulose grafted graphene oxide. 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 after being t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/00C08F222/14C08F220/06C08G83/00C08J9/26B01J20/26B01J20/28C02F1/28B01J20/30C02F101/34C02F101/36
CPCB01J20/06B01J20/20B01J20/268B01J20/28009C02F1/288C02F2101/34C02F2101/36C08F283/00C08G83/001C08J9/26C08J2201/0424C08J2351/08C08F222/102
Inventor 欧阳小琨孙骁潇王艳飞王南杨立业
Owner ZHEJIANG OCEAN UNIV
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