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Monodisperse water soluble ferroferric oxide nano particles

A three-body, nanoparticle technology, applied in nanotechnology, nanotechnology, oxides of ferrous iron, etc., can solve the problems affecting the magnetic response, complexity, and limitation of ferric oxide nanoparticles. Particle application and other issues, to achieve excellent magnetic properties, good repeatability, and eliminate the effect of solution agglomeration

Active Publication Date: 2014-11-26
日照新睿招商发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] 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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Examples

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Embodiment 1

[0036] A monodisperse water-soluble trioxide nanoparticle, the preparation method of which is as follows:

[0037] 1) First, add analytically pure ferric chloride and ferrous chloride to deionized water, stir on a magnetic stirrer to dissolve, and obtain a transparent solution A with a Fe3+ concentration of 0.1mol / L and a Fe2+ concentration of 0.1mol / L transparent solution B;

[0038] 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;

[0039] 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;

[0040] 4) Heat the round bottom flask with a water bath until the temperature is 60°C, then add an appropriate amount of...

Embodiment 2

[0044] A monodisperse water-soluble trioxide nanoparticle, the preparation method of which is as follows:

[0045] 1) First, add analytically pure ferric chloride and ferrous chloride to deionized water, stir on a magnetic stirrer to dissolve, and obtain a transparent solution A with a Fe3+ concentration of 0.1mol / L and a Fe2+ concentration of 0.1mol / L transparent solution B;

[0046] 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;

[0047] 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, continue to stir for 2 hours to form a uniform and transparent solution D;

[0048] 4) Heat the round bottom flask with a water bath until the temperature is 100°C, then add an appropriate amount of sodium hy...

Embodiment 3

[0052] A monodisperse water-soluble trioxide nanoparticle, the preparation method of which is as follows:

[0053] 1) First, add analytically pure ferric chloride and ferrous chloride to deionized water, stir on a magnetic stirrer to dissolve, and obtain a transparent solution A with a Fe3+ concentration of 0.1mol / L and a Fe2+ concentration of 0.1mol / L transparent solution B;

[0054] 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;

[0055] 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, continue to stir for 2 hours to form a uniform and transparent solution D;

[0056] 4) Heat the round bottom flask with a water bath until the temperature is 70°C, then add an appropriate amount of sodium hyd...

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Abstract

The invention discloses 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

[0001] technical field [0002] The invention belongs to the field of iron ferric oxide nanoparticle materials, in particular to a monodisperse water-soluble trioxide nanoparticle. [0003] Background technique [0004] 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. [0005] Fe 3 o 4 The space group with inverse spinel structure is Fd3m, and the unit cell cons...

Claims

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Application Information

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IPC IPC(8): C01G49/08B82Y30/00
Inventor 程鸿林
Owner 日照新睿招商发展有限公司
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