Preparation method for organic inorganic hybridized enoxacin molecular imprinting composite membrane material

A technology of enoxacin and molecular imprinting, applied in the direction of inorganic chemistry, chemical instruments and methods, alkali metal compounds, etc., can solve problems such as environmental biological and ecological impacts, adverse effects on human health and survival, and achieve effective identification of sites Multiple, fast adsorption kinetic properties, good thermal stability

Inactive Publication Date: 2019-02-22
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since enoxacin cannot be completely absorbed by the human body or animals, a large part of it is excreted into the environment with feces and urine in the form of original or metabolites. Ecological impacts that may ultimately adversely affect human health and survival

Method used

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  • Preparation method for organic inorganic hybridized enoxacin molecular imprinting composite membrane material
  • Preparation method for organic inorganic hybridized enoxacin molecular imprinting composite membrane material
  • Preparation method for organic inorganic hybridized enoxacin molecular imprinting composite membrane material

Examples

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Embodiment 1

[0039] (1) Preparation of organic-inorganic hybrid SN-PEI nanoparticles

[0040] Tetraethyl silicate (TEOS) added quickly after thorough mixing of ethanol, ammonia water and deionized water, wherein the volume ratio of ethanol, ammonia water, deionized water and tetraethyl silicate (TEOS) is 50:2.04:0.9 :2.9. It was stirred at 25°C for 24 hours, and finally the stirred SiO 2 The nanosphere solution was centrifuged several times with ethanol and dried for later use. After that, the SiO 2 The powder is added to ethanol, and the temperature is raised after 1 hour of nitrogen gas. After the temperature is raised to 80°C, aminopropyltriethoxysilane (APTES) is quickly added, and the reaction is refluxed at 80°C for 6 hours, and centrifuged with ethanol and deionized water. After washing, the resulting SN-NH 2 Dry and set aside. Of which SiO 2 The dosage ratio of powder, ethanol, and aminopropyltriethoxysilane (APTES) is 0.3:80:400 (mg:mL:μL). SN-NH 2 Added to phosphate buffe...

Embodiment 2

[0053] (1) Preparation of organic-inorganic hybrid SN-PEI nanoparticles

[0054] Tetraethyl silicate (TEOS) added quickly after thorough mixing of ethanol, ammonia water and deionized water, wherein the volume ratio of ethanol, ammonia water, deionized water and tetraethyl silicate (TEOS) is 50:2.04:0.9 :2.9. It was stirred at 25°C for 24 hours, and finally the stirred SiO 2 The nanosphere solution was centrifuged several times with ethanol and dried for later use. After that, the SiO 2 The powder is added to ethanol, and the temperature is raised after 1 hour of nitrogen gas. After the temperature is raised to 80°C, aminopropyltriethoxysilane (APTES) is quickly added, and the reaction is refluxed at 80°C for 6 hours, and centrifuged with ethanol and deionized water. After cleaning, the obtained SN-NH2 was dried for use. Of which SiO 2 The dosage ratio of powder, ethanol, and aminopropyltriethoxysilane (APTES) is 0.3:80:400 (mg:mL:μL). SN-NH 2 Added to phosphate buffer ...

Embodiment 3

[0068] (1) Preparation of organic-inorganic hybrid SN-PEI nanoparticles

[0069] Tetraethyl silicate (TEOS) added quickly after thorough mixing of ethanol, ammonia water and deionized water, wherein the volume ratio of ethanol, ammonia water, deionized water and tetraethyl silicate (TEOS) is 50:2.04:0.9 :2.9. It was stirred at 25°C for 24 hours, and finally the stirred SiO 2 The nanosphere solution was centrifuged several times with ethanol and dried for later use. After that, the SiO 2 The powder is added to ethanol, and the temperature is raised after 1 hour of nitrogen gas. After the temperature is raised to 80°C, aminopropyltriethoxysilane (APTES) is quickly added, and the reaction is refluxed at 80°C for 6 hours, and centrifuged with ethanol and deionized water. After cleaning, the obtained SN-NH2 was dried for use. Of which SiO 2 The dosage ratio of powder, ethanol, and aminopropyltriethoxysilane (APTES) is 0.3:80:400 (mg:mL:μL). SN-NH 2 Added to phosphate buffer ...

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Abstract

The invention discloses a preparation method for an organic inorganic hybridized enoxacin molecular imprinting composite membrane material and belongs to the technical field of materials. The preparation method comprises the following steps: preparing an inorganic silicon nanoparticle (SiO2), performing surface modification and then grafting with polyethyleneimine (PEI); preparing an organic inorganic hybridized SN-PEI nanoparticle and then blending with a polyvinylidene fluoride (PVDF) membrane, thereby acquiring a base membrane; taking enoxacin as a template molecule, acrylamide (AM) as a functional monomer, 4-vinyl pyridine as a crosslinking agent and 2,2-azobisisobutyronitrile (AIBN) as an initiator, and performing imprinting polymerization reaction. On the basis of a molecular imprinting technology, a high-performance organic inorganic hybridized enoxacin molecular imprinting composite membrane material (SPEMIMs) is prepared and is used for detecting residual enoxacin in wastewater. The preparation method disclosed by the invention has the characteristics of simple and easy operation, easiness in implementation, higher yield, mild reaction conditions, and the like, and is expected to be applied to industrial production.

Description

technical field [0001] The invention relates to a preparation method and application of a high-performance organic-inorganic hybrid enoxacin molecularly imprinted composite membrane material, which belongs to the technical field of new materials. Background technique [0002] Membrane separation technology (MST) refers to the separation, classification, purification and enrichment of two-component or multi-component solutes and solvents using natural or synthetic polymer films, driven by external energy or chemical potential difference Methods. The membrane separation process uses the selective permeable membrane as the separation medium, and utilizes the difference in the permeability of the membrane to each component of the mixture to realize the physical separation, purification and enrichment of the multi-component mixture. At the molecular level, MST is a technology for selective separation of a mixture of molecules of different particle sizes passing through a semi-pe...

Claims

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Application Information

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IPC IPC(8): B01D69/02B01D69/12B01D67/00B01D71/34B01J20/26B01J20/28B01J20/30
CPCB01D67/0079B01D69/02B01D69/125B01D71/34B01D2325/24B01D2325/36B01J20/268B01J20/28033B01J20/3057B01J20/3064
Inventor 高佳卢健吴易霖闫永胜
Owner JIANGSU UNIV
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