Preparation method of Fe3O4@C@PAM core-shell magnetic nano material

A magnetic nano, core-shell technology, applied in the direction of microsphere preparation, inorganic material magnetism, microcapsule preparation, etc., can solve the problems of low yield of synthetic nanoparticles, high-cost synthetic solvent, unsuitable for actual production, etc., to achieve cost Low, uniform particles, good dispersion effect

Inactive Publication Date: 2014-01-29
沈阳茂悦科技有限公司
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Problems solved by technology

[0010] Although the microemulsion method can effectively control the morphology of magnetic nanoparticles, the yield of nanoparticles synthesized by this method is low, and requires high-cost synthetic solvents and synthetic materials, which is not suitable for actual production.

Method used

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Embodiment Construction

[0033] a kind of Fe 3 o 4 The preparation method of CPAM core-shell magnetic nanometer material comprises the following steps:

[0034] The first step, Fe 3 o 4 Preparation of nanoparticles.

[0035] 1.1, 1.35g of ground FeCl 3 ·6H 2 O was placed in a 250mL dry beaker, and 75mL of ethylene glycol was added to the beaker with a graduated cylinder, and then 3.6g of crushed sodium acetate was added to make FeCl 3 , a mixed solution of ethylene glycol and sodium acetate.

[0036] 1.2. Seal the beaker with a plastic cloth, use a magnetic stirrer to continuously magnetically stir at a speed of 200rpm for 1 hour, and then place the FeCl that has undergone magnetic stirring 3Put the beaker of the mixed solution of ethylene glycol and sodium acetate into the cleaning tank of the ultrasonic cleaner, and use an ultrasonic cleaner with an electric power of 150W for 5 minutes.

[0037] 1.3, the ultrasonic FeCl 3 The mixed solution of ethylene glycol and sodium acetate was transfer...

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Abstract

The invention relates to a preparation method of an Fe3O4@C@PAM core-shell magnetic nano material, which comprises the following steps: 1, preparing a mixed solution of FeCl3, ethylene glycol and sodium acetate, and reacting in a polytetrafluoroethylene reaction kettle; and cleaning the product, and drying to obtain Fe3O4 nano particles; 2, acidifying the Fe3O4 nano particles, and cleaning with deionized water; and preparing a mixed solution of the Fe3O4 nano particles and glucose, reacting in the polytetrafluoroethylene reaction kettle, cleaning the product, and drying to obtain an Fe3O4@C magnetic nano material; and 3, preparing a mixed solution of the Fe3O4@C magnetic nano material, sodium hexametaphosphate and acrylamide, reacting in the polytetrafluoroethylene reaction kettle, washing the product, and drying to obtain the Fe3O4@C@PAM core-shell magnetic nano material, wherein the Fe3O4@C@PAM core-shell magnetic nano material is in shape of a regular sphere, and the particle size is in a nano level. The preparation method has the advantages of simple operation process, uniform particles, favorable dispersity and high adsorption capability; and the preparation process is environment-friendly and causes no pollution.

Description

technical field [0001] The invention belongs to the field of preparation methods of magnetic nanocomposites, in particular to a Fe 3 o 4 A preparation method of CPAM core-shell magnetic nanomaterials. Background technique [0002] The synthesis methods of magnetic nanomaterials can be divided into physical methods and chemical methods. The former includes organic grinding method, metal organic thermal decomposition method, electrolysis method, vacuum evaporation method, and the latter is mainly divided into solvothermal method, coprecipitation method, Microemulsion method, sol-gel method, etc. However, the size distribution of magnetic nanoparticles prepared by physical methods is relatively wide, which is not suitable for applications in chemical separation, biology, medicine and other fields with relatively high particle size requirements. Generally, magnetic nanomaterials are prepared by chemical methods. [0003] (1) Solvothermal method [0004] Solvothermal method, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/02H01F1/11
Inventor 唐祝兴薛君李晓桐
Owner 沈阳茂悦科技有限公司
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