Porous sea-urchin-shaped Fe3O4@C composite material and preparation method thereof

A composite material and sea urchin-like technology, applied in chemical instruments and methods, alkali metal compounds, other chemical processes, etc., can solve the problems of adsorption, low separation, unsuitability for mass production, and limitation of practical application, etc. Novelty, low equipment requirements, uniform size effect

Inactive Publication Date: 2017-02-22
南通特雷斯金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing methods are complex, time-consuming, high energy consumption, poor adsorption and separation, difficult to control, and not suitable for mass production, which limits its practical application to a certain extent
And the preparation of porous sea urchin-like Fe with good dispersion and uniform particle size 3 o 4 @C Composites are still very difficult

Method used

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  • Porous sea-urchin-shaped Fe3O4@C composite material and preparation method thereof
  • Porous sea-urchin-shaped Fe3O4@C composite material and preparation method thereof
  • Porous sea-urchin-shaped Fe3O4@C composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A porous urchin-like Fe 3 o 4 The preparation method of @C composite material, concrete steps are as follows:

[0028] a. Dissolve 0.8g of ferric chloride hexahydrate in 50ml of ethylene glycol and stir for 40 minutes to form ferric chloride solution. The concentration of ferric chloride solution is 5.93×10 -5 mol / mL;

[0029] b. Add 1 g of diethylenetriamine (DETA) to the ferric chloride solution in step a, and stir for 40 minutes to form a mixed solution; the molar ratio of diethylenetriamine to ferric chloride hexahydrate is 3.02:1.

[0030] c. The mixed solution was added into a tetrafluoroethylene reactor, and the reactor was placed in an incubator. After reacting for 8 hours at 180° C., a black precipitate was obtained.

[0031] d. Process the black precipitate in step c, that is, take it out, centrifuge, wash, and dry to obtain porous sea urchin-like Fe 3 o 4 @C Precursor.

[0032]e. Put the precursor obtained in step d in a tube furnace, feed nitrogen as a...

Embodiment 2

[0034] a kind of Fe 3 o 4 The preparation method of @C porous sea urchin-like core-shell structure, the specific steps are as follows:

[0035] a. Dissolve 0.4g of ferric chloride hexahydrate in 40ml of ethylene glycol and stir for 30 minutes to form a ferric chloride solution with a concentration of 3.70×10 -5 mol / mL;

[0036] b. Add 0.5 g of diethylenetriamine (DETA) to the ferric chloride solution in step a, and stir for 30 minutes to form a mixed solution; the molar ratio of diethylenetriamine to ferric chloride hexahydrate is 3.02:1.

[0037] c. Add the mixed solution into the tetrafluoroethylene reactor, put the reactor into a constant temperature box, and react at 160° C. for 6 hours to obtain a black precipitate.

[0038] d. Process the black precipitate in step c, that is, take it out, centrifuge, wash, and dry to obtain porous sea urchin-like Fe 3 o 4 @C Precursor.

[0039] e. Put the precursor obtained in step d in a tube furnace, feed nitrogen as a protective...

Embodiment 3

[0042] The difference between this embodiment and embodiment 2 is that the amount of ferric chloride changes to 0.8g, and others are identical with embodiment 2, specifically as follows:

[0043] a. Dissolve 0.8g of ferric chloride hexahydrate in 40ml of ethylene glycol and stir for 30 minutes to form a ferric chloride solution with a concentration of 7.41×10 -5 mol / mL;

[0044] b. Add 0.5 g of diethylenetriamine (DETA) to the ferric chloride solution in step a, and stir for 30 minutes to form a mixed solution; the molar ratio of diethylenetriamine to ferric chloride hexahydrate is 1.51:1.

[0045] c. Add the mixed solution into the tetrafluoroethylene reactor, put the reactor into a constant temperature box, and react at 160° C. for 6 hours to obtain a black precipitate.

[0046] d. Process the black precipitate in step c, that is, take it out, centrifuge, wash, and dry to obtain porous sea urchin-like Fe 3 o 4 @C Precursor.

[0047] e. Put the precursor obtained in step ...

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Abstract

The invention belongs to the technical field of semiconductor composite nano material preparation and relates to a porous sea-urchin-shaped Fe3O4@C composite material and a preparation method thereof. The preparation method includes the steps of a, dissolving ferric chloride into ethylene glycol, and stirring to form a ferric chloride solution; b, adding diethylenetriamine into the ferric chloride solution, and stirring to obtain a mixed solution; c, adding the mixed solution obtained in the step b into a reaction kettle, heating to a certain temperature, and performing reaction for a certain period of time to form a precursor; d, calcining the precursor obtained in the step c under an inert gas or vacuum environment to obtain the porous sea-urchin-shaped Fe3O4@C composite material. The preparation method has the advantages that the method is simple in process, low in equipment requirement and high in controllable degree; the porous sea-urchin-shaped Fe3O4@C composite material is prepared by reasonable process control, the prepared sea-urchin-shaped Fe3O4@C is even in size, good in dispersity and novel in morphology, a spherical structure comprises through holes, and the porous sea-urchin-shaped Fe3O4@C composite material is good in porosity, large in specific surface area, good in absorption performance, high in heavy metal ion absorption ability and widely applicable to energy and environment protection industry.

Description

technical field [0001] The invention belongs to the technical field of semiconductor composite nanomaterial preparation technology, and relates to a porous sea urchin-like Fe 3 o 4 Preparation method of @C composite material. [0002] technical background [0003] Ferric oxide (Fe 3 o 4 ) is an important spinel-type ferrite. Since the systematic research and production began in the 1940s, ferrite materials have developed extremely rapidly. They have been widely used in the fields of magnetic fluids, electronic devices, information storage, magnetic separation, drug delivery, magnetic resonance imaging, and protein adsorption. [0004] However, pure ferroferric oxide is limited in its application because of its perishability and unstable properties. In recent years, nanocomposites with core-shell structure have become a research hotspot in the field of nano research due to their own controllable physical and chemical properties, and have received more and more attention f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/08B01J20/20B01J20/28B01J20/30
CPCB01J20/06B01J20/20C01G49/08B01J20/28042C01P2004/30C01P2004/03C01P2004/04C01P2004/80
Inventor 俞阳阳吴小平岳金明程琳李小云金立王顺利
Owner 南通特雷斯金属制品有限公司
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