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Preparation method of molecularly imprinted polymer packing for fluoroquinolone antibiotics

A fluoroquinolone and molecular imprinting technology, which is applied in the fields of environment and materials, can solve the problems that target pollutants do not have the recognition function and do not have fluoroquinolone antibiotics, etc., and achieves good chemical stability, improved adsorption effect, and high recovery efficiency. Effect

Inactive Publication Date: 2015-12-23
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technology does not have the function of selective adsorption and removal of fluoroquinolone antibiotics, and the material does not have the function of identifying target pollutants, and the material needs to be regenerated after high temperature

Method used

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  • Preparation method of molecularly imprinted polymer packing for fluoroquinolone antibiotics
  • Preparation method of molecularly imprinted polymer packing for fluoroquinolone antibiotics
  • Preparation method of molecularly imprinted polymer packing for fluoroquinolone antibiotics

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Embodiment 1

[0019] like figure 1 and figure 2 As shown, in this embodiment, if there is no special description, it is all carried out at room temperature 25 ° C, including the following steps:

[0020] Step 1. Prepare non-molecularly imprinted nanometer mesoporous carbon particles (Mesoporous Carbon Nanoparticles, MCNs), specifically including:

[0021] Step 1.1) preparing nanometer mesoporous silicon particles (MesoporousSilicaNanoparticles, MSNs), including the following steps:

[0022] 1.1.1) Preparation of solution A: Add 0.5g of cetyltrimethylammoniumbormide (CTAB) and 2.05g of triblock copolymer polyether F127 to 96mL of distilled water and mix, then add 11.25mL ( 10.05g) of concentrated ammonia water (2.5wt%) was slowly dropped into the above mixed solution, and mixed.

[0023] 1.1.2) Prepare solution B: Add 1.93mL (1.8g) of Tetraethylorthosilicate (TEOS) to 43.04mL (34g) of absolute ethanol.

[0024] 1.1.3) Pour solution B into solution A quickly, stir magnetically at 80°C an...

Embodiment 2

[0053] like image 3 As shown, 2mg of MIP‐MCNs (Filler A) and 2mg of MCNs (Filler B) were added to 3mL with concentrations of 0, 0.5mg / L, 5mg / L, 10mg / L, 15mg / L, 20mg / L, respectively. In the norfloxacin solution of L, 40mg / L, 60mg / L, 80mg / L, 100mg / L, 120mg / L and 160mg / L, put the flask containing the mixed solution under the condition of 25°C and 250rpm Constant temperature oscillator reaction 24h; Then take out the solid in the mixed solution, centrifuge 5min under 13000rpm, get 0.5mL supernatant and carry out high-performance liquid chromatography analysis, detect the norfloxacin content adsorbed on the solid, the result is as follows image 3 shown.

[0054] The results showed that the adsorption effect of filler A was obviously better than that of filler B. And as the concentration of norfloxacin in water increases, the adsorption rates of the two fillers all decrease, but the removal capacity of filler A relative to filler B is enhanced; according to the adsorption isothe...

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Abstract

The invention provides a preparation method of molecularly imprinted polymer packing for fluoroquinolone antibiotics. The method includes the steps that tetraethoxysilane serves as a silicon source, polyether F127 serves as a template, and nanometer meso-porous silicon particles are prepared in a CTAB-water system; the nanometer meso-porous silicon particles are subjected to amino-group functionalization, and glucose serves as a carbon source to prepare unloaded nanometer mesoporous carbon particles; methacrylic acid serves as monomers, trimethoxy propyl acrylate serves as a crosslinking agent, MCNs and norfloxacin to which functional groups are added serve as template molecules, and nanometer mesoporous carbon loaded with molecularly imprinted polymer is prepared. The molecularly imprinted polymer packing has the recognition and selective adsorption functions on the fluoroquinolone antibiotics, the adsorption effect is remarkably improved, and recovery and regeneration are easy.

Description

technical field [0001] The invention relates to a technology in the field of environment and materials, in particular to a method for preparing molecularly imprinted polymer fillers for fluoroquinolone antibiotics. Background technique [0002] At present, the fillers that can be used for the removal of antibiotics in water include activated carbon, bio-modified sludge charcoal, and adsorption resins. The commonality of these fillers is that there is no selective specificity in the adsorption of pollutants in water, and there is competitive adsorption in the adsorption process, which is not easy to remove trace pollutants in water. This is because when these adsorption fillers are used, trace pollutants will always be interfered by other substances in the water, so that the adsorption efficiency of the fillers on these trace pollutants will decrease. For example, fluoroquinolone antibiotics mostly exist in micrograms or even nanograms in the water environment, and even trac...

Claims

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Application Information

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IPC IPC(8): C08F220/06C08F222/14C08K9/06C08K3/36C08K3/04B01J20/26B01J20/30
Inventor 唐利邱江平娄可心倪萍李银生谭学军
Owner SHANGHAI JIAO TONG UNIV
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