Preparation method of small particle size ferroferric oxide magnetic nano particles

A technology of magnetic nanoparticles and ferric oxide, applied in iron oxide/iron hydroxide, nanotechnology, nanotechnology, etc., can solve the problems of easy agglomeration of magnetic particles, wide particle size distribution, and difficulty in preparing magnetic nanoparticles.

Inactive Publication Date: 2018-07-17
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the magnetic particles prepared by this method are easy to agglomerate, the particle size distribution is wide, and it is diff...

Method used

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  • Preparation method of small particle size ferroferric oxide magnetic nano particles

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Experimental program
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Embodiment 1

[0021] (1) Put 60mL of ethanol, 10mL of distilled water, and 20mL of n-hexane in a three-neck flask, stir for 10min, then add 1g of ferric chloride and 3.65g of sodium oleate, then stir in an oil bath at 75°C for 4h, cool to room temperature, and separate the liquids Wash and dry in vacuum at 60°C for 12 hours in a watch glass.

[0022] (2) 4g of iron oleate, 25mL of 1-octadecene, and 0.65g of oleic acid are ultrasonically dissolved and poured into a 100mL three-neck flask, distilled under nitrogen protection, first heated to about 100°C, and then heated at 5°C / min to 330°C, keep the temperature for 30min, cool to room temperature, separate and wash with ethanol, and disperse in 30mL cyclohexane.

Embodiment 2

[0024] (1) Put 60mL of ethanol, 10mL of distilled water, and 20mL of n-hexane in a three-neck flask, stir for 10min, then add 1g of ferric chloride and 3.65g of sodium oleate, then stir in an oil bath at 75°C for 4h, cool to room temperature, and separate the liquids Wash and dry in vacuum at 60°C for 12 hours in a watch glass.

[0025] (2) 4g of iron oleate, 20mL of 1-octadecene, and 0.65g of oleic acid are ultrasonically dissolved and poured into a 100mL three-neck flask, distilled under nitrogen protection, first heated to about 100°C, and then heated at 5°C / min to 330°C, keep the temperature for 1h, cool to room temperature, separate and wash with ethanol, and disperse in 30mL cyclohexane.

Embodiment 3

[0027] (1) Put 60mL of ethanol, 10mL of distilled water, and 20mL of n-hexane in a three-neck flask, stir for 10min, then add 1g of ferric chloride and 3.65g of sodium oleate, then stir in an oil bath at 75°C for 4h, cool to room temperature, and separate the liquids Wash and dry in vacuum at 60°C for 12 hours in a watch glass.

[0028] (2) 4g of ferric oleate, 15mL of 1-octadecene, and 0.65g of oleic acid were ultrasonically dissolved and poured into a 100mL three-neck flask, distilled under nitrogen protection, first heated to about 100°C, and then heated at 5°C / min to 330°C, keep the temperature for 2h, cool to room temperature, separate and wash with ethanol, and disperse in 30mL cyclohexane.

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Abstract

The invention relates to a preparation method of small particle size ferroferric oxide magnetic nanoparticles, wherein the small particle size nano particles have a particle diameter of 10-20 nm, andare prepared by a high temperature pyrolysis method for decomposing iron oleate. As an important nanomaterial, the obtained ferroferric oxide magnetic nanoparticles have broad application prospects inthe fields of magnetic recording materials, wave absorbing materials, pigments, catalysts, and biomedicine and the like.

Description

technical field [0001] The present invention relates to a method for preparing small-diameter iron ferric oxide magnetic nanoparticles. As an important nanomaterial, magnetic nano-iron oxide has great potential in the fields of magnetic recording materials, wave-absorbing materials, pigments, catalysts, and biomedicine. Wide application prospects. Especially in the field of biomedicine, magnetic nano-iron oxide particles are widely used in magnetic resonance imaging contrast agents, targeted drug carrier cell separation and labeling due to their good biocompatibility and superparamagnetism. Background technique [0002] Magnetic nanoparticles, as a special member of the nanomaterial family, have attracted widespread attention in recent years because of their special magnetic properties and the characteristics of nanoparticles. From the research on the properties of magnetic nanoparticles, the research on the preparation method of magnetic nanoparticles, to the further resea...

Claims

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Application Information

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IPC IPC(8): C01G49/08B82Y30/00
CPCB82Y30/00C01G49/08C01P2004/64
Inventor 代昭武文静余荃
Owner TIANJIN POLYTECHNIC UNIV
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