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A magnetic microporous organic nanotube hybrid material and its preparation and application

A technology of organic nanotubes and hybrid materials, which is applied in the field of nano-hybrid materials, can solve the problems of high energy consumption and complex process, and achieve the effects of high magnetic response, broad application prospects, and easy magnetic separation

Inactive Publication Date: 2018-11-09
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method requires three steps in the preparation process, that is, polymerization-swelling polymerization-hypercrosslinking, the process is complicated, and the energy consumption is large.

Method used

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  • A magnetic microporous organic nanotube hybrid material and its preparation and application
  • A magnetic microporous organic nanotube hybrid material and its preparation and application
  • A magnetic microporous organic nanotube hybrid material and its preparation and application

Examples

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Embodiment 1

[0071] (1) Fe 3 o 4 Preparation of @Dopa-PS Magnetic Nanoparticles

[0072] 1) Preparation of Dopa-CTA

[0073] S-1-dodecyl-S'-(α,α'-dimethyl-α"-acetic acid) trithiocarbonate (CTA, 0.3646g, 1.0mmol) and dicyclohexylcarbodiimide ( DCC, 0.3095g, 1.5mmol) was dissolved in 5mL of dry dichloromethane, under the protection of nitrogen, the dichloromethane suspension containing N-hydroxysuccinimide (NHS, 0.1726g, 1.5mmol) was added under ice-cooling, Stir overnight at room temperature. After the solvent is removed, the yellow crude product is obtained, and the equivalent product Suc-CTA is obtained after column chromatography. Under nitrogen and light-shielding conditions, Suc-CTA (1.14g, 2.47mmol) and dopamine hydrochloride (0.562 g, 2.96mmol) was added to 20mL of anhydrous methanol, and stirred at room temperature for 24 hours. The yellow crude product was obtained after the solvent was evaporated, and the yellow Dopa-CTA was obtained after purification by column chromatography,...

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Abstract

The invention belongs to the field of nano hybrid materials and discloses a magnetic microporous organic nanotube hybrid material and a preparation method thereof. The preparation method includes: modifying polystyrene on the surfaces of magnetic nanoparticles through ligand exchange; synthesizing a molecular brush polymer precursor with a core-shell structure; performing super cross-linking on the magnetic nanoparticles modified by polystyrene with the molecular brush polymer precursor through Friedel-Crafts alkylation reaction, and selectively hydrolyzing to remove a polylactic core of a molecular brush to obtain the magnetic microporous organic nanotube hybrid material. The magnetic microporous organic nanotube hybrid material has stable multistage pore structure and hollow tubular structure, large specific surface area and high magnetic response performance and has wide application prospect in the aspects of biological separation, adsorption and multiphase catalysis. The invention further discloses application of the magnetic microporous organic nanotube hybrid material in water-soluble dye selective adsorption and separation and dye thereof supportive of repeated adsorption and desorption.

Description

technical field [0001] The invention belongs to the technical field of nano-hybrid materials, and specifically relates to a magnetic inorganic nano-particle / organic hypercrosslinked multi-level porous nanotube hybrid material, a preparation method and an application. Background technique [0002] In recent years, magnetic porous materials have been widely used in the fields of catalysis, environmental engineering, and biomedicine due to their unique properties. On the one hand, due to the superparamagnetism of the magnetic particles, when there is an external magnetic field, they show better magnetism, and after the external magnetic field is removed, the remanence of the magnetic particles is zero, so it can be conveniently control and separation. On the other hand, due to the high specific surface area and pore volume of porous materials, they can be used in the fields of catalysis, separation and loading. It is precisely because the magnetic porous material has the char...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/30B01J20/26B01J20/28C02F1/28B01J32/00
CPCB01J20/22C02F1/285C02F1/288B01J20/261B01J20/264B01J20/28007B01J20/28009B01J20/28064B01J20/28066B01J20/28073B01J20/28076B01J20/2808B01J20/28083B01J2220/4806B01J2220/46B01J2220/4812C02F2101/308
Inventor 黄琨周铭洪俞纬施卜银徐洋王天琪
Owner EAST CHINA NORMAL UNIV
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