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A kind of preparation method of monodisperse water-soluble iron ferric oxide nanoparticles

A technology of ferric oxide and nanoparticles, applied in iron oxide/ferric hydroxide, nanotechnology, nanotechnology, etc., can solve the problem of affecting the magnetic response of ferric oxide nanoparticles, limiting the application of ferric oxide nanoparticles, Complexity and other problems, to achieve the effect of eliminating solution agglomeration, mild preparation conditions, and good repeatability

Active Publication Date: 2015-12-09
日照新睿招商发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] Now many researchers also use the method of adding surfactants, especially some polymer compounds, to prepare iron ferric oxide nanoparticles by coprecipitation method. The nanoparticles prepared by this method have better water solubility, but due to the introduction of polymer Compounds, which limit the application of this type of ferroferric oxide nanoparticles, polymer compounds are like a thick coat, affecting the magnetic response of ferric oxide nanoparticles, and in the process of surface treatment of ferroferric oxide, also there is some complexity

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Embodiment 1

[0032] A preparation method of monodisperse water-soluble iron ferric oxide nanoparticles, the preparation method is as follows:

[0033] 1) At first, analytically pure ferric chloride and ferrous chloride are added into deionized water respectively, stirred on a magnetic stirrer to dissolve it, and a transparent solution A with a concentration of Fe3+ of 0.1mol / L and a concentration of Fe2+ of 0.1mol / L transparent solution B;

[0034] 2) Take the same volume of solution A and solution B, mix well, then continue to add a small amount of ammonia water, after adding ammonia water, stir for half an hour, the formed solution is a uniform and transparent orange solution C;

[0035] 3) Take 50ml of n-hexanol and add it to a 100ml round bottom flask. During the stirring process, slowly add 5ml of solution C. After the addition is complete, continue to stir for 0.5 hours to form a uniform and transparent solution D;

[0036] 4) Heat the round bottom flask with a water bath until the ...

Embodiment 2

[0039] A preparation method of monodisperse water-soluble iron ferric oxide nanoparticles, the preparation method is as follows:

[0040] 1) At first, analytically pure ferric chloride and ferrous chloride are added into deionized water respectively, stirred on a magnetic stirrer to dissolve it, and a transparent solution A with a concentration of Fe3+ of 0.1mol / L and a concentration of Fe2+ of 0.1mol / L transparent solution B;

[0041] 2) Take the same volume of solution A and solution B, mix well, then continue to add a small amount of ammonia water, after adding ammonia water, stir for half an hour, the formed solution is a uniform and transparent orange solution C;

[0042] 3) Take 50ml of n-hexanol and add it to a 100ml round bottom flask. During the stirring process, slowly add 20ml of solution C. After the addition is complete, continue to stir for 2 hours to form a uniform and transparent solution D;

[0043] 4) Heat the round bottom flask with a water bath until the t...

Embodiment 3

[0046] A preparation method of monodisperse water-soluble iron ferric oxide nanoparticles, the preparation method is as follows:

[0047] 1) At first, analytically pure ferric chloride and ferrous chloride are added into deionized water respectively, stirred on a magnetic stirrer to dissolve it, and a transparent solution A with a concentration of Fe3+ of 0.1mol / L and a concentration of Fe2+ of 0.1mol / L transparent solution B;

[0048] 2) Take the same volume of solution A and solution B, mix well, then continue to add a small amount of ammonia water, after adding ammonia water, stir for half an hour, the formed solution is a uniform and transparent orange solution C;

[0049] 3) Take 50ml of n-hexanol and add it to a 100ml round bottom flask. During the stirring process, slowly add 20ml of solution C. After the addition is complete, continue to stir for 2 hours to form a uniform and transparent solution D;

[0050] 4) Heat the round bottom flask with a water bath until the t...

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Abstract

The invention discloses a preparation method of monodisperse water soluble ferroferric oxide nano particles; the water soluble ferroferric oxide nano particles with small size and good dispersion are prepared by use of a fractional precipitation method and combination of n-hexanol as a co precipitation solvent in the condition of relatively fast stirring speed. The preparation process has the advantages of being simple, mild in preparation conditions, controllable in preparation technology, good in repeatability, and capable of technologized production; the obtained ferroferric oxide nano particles are ultra small in size and uniform in morphology, and have good magnetic properties; the used n-hexanol can be recycled, and the cost can be saved.

Description

technical field [0001] The invention belongs to the field of preparation of iron ferric oxide nanoparticle materials, in particular to a preparation method of monodisperse water-soluble ferric iron tetroxide nanoparticle. Background technique [0002] In recent years, the research on the properties of magnetic nanoparticles has been paid more attention, not only because magnetic nanoparticles have special significance in the study of basic physical properties, but also have a wide range of uses in practical applications. Among all kinds of magnetic nanoparticles, the related triiron tetroxide (Fe 3 o 4 ) applications of nanoparticles have received particular attention. By controlling appropriate reaction conditions, people have been able to prepare Fe with diameters ranging from a few to tens of nanometers. 3 o 4 Nanoparticles are used in many fields due to their different properties from bulk materials. [0003] Fe 3 o 4 The space group with inverse spinel structure ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/08B82Y30/00
Inventor 李国阳
Owner 日照新睿招商发展有限公司
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