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Preparation method of iron oxide nanowire

A technology of nano-iron oxide and iron carboxylate, which is applied in the field of nano-iron oxide, can solve the problems of difficulty in controlling the size of nano-materials and poor organic dispersion, and achieve the effects of good organic dispersion, low cost, and uniform diameter

Active Publication Date: 2015-05-20
XINXIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for preparing iron oxide nanowires, which solves the problems that the size of nanomaterials obtained by existing preparation methods is difficult to control and the organic dispersion is poor

Method used

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  • Preparation method of iron oxide nanowire
  • Preparation method of iron oxide nanowire

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Embodiment 1

[0024] The preparation method of the iron oxide nanowire of the present embodiment comprises the following steps:

[0025] 1) Mix 300ml oleylamine with 25g ferric oleate to obtain a mixture;

[0026] 2) Under stirring conditions, heat the mixed solution obtained in step 1) to 150°C, keep it warm for 1 hour, remove the moisture contained in the system, then rapidly heat it to 210°C, and react at constant temperature for 12 hours to obtain the reaction product;

[0027] 3) Cool the reaction product to room temperature, add an equal volume of acetone, and centrifuge to obtain a black precipitate;

[0028] 4) The obtained black precipitate was vacuum-dried at 60° C. for 12 hours, and the obtained black powder was the iron oxide nanowire.

Embodiment 2

[0030] The preparation method of the iron oxide nanowire of the present embodiment comprises the following steps:

[0031] 1) Mix 300ml oleylamine with 25g ferric oleate to obtain a mixture;

[0032] 2) Under stirring conditions, heat the mixed solution obtained in step 1) to 150°C, keep it warm for 1 hour, remove the water contained in the system, then rapidly heat it to 220°C, and react at constant temperature for 10 hours to obtain the reaction product;

[0033] 3) Cool the reaction product to room temperature, add an equal volume of acetone, and centrifuge to obtain a black precipitate;

[0034] 4) The obtained black precipitate was vacuum-dried at 60° C. for 12 hours, and the obtained black powder was the iron oxide nanowire.

Embodiment 3

[0036] The preparation method of the iron oxide nanowire of the present embodiment comprises the following steps:

[0037] 1) Mix 300ml oleylamine with 25g ferric oleate to obtain a mixture;

[0038] 2) Under stirring conditions, heat the mixed solution obtained in step 1) to 150°C, keep it warm for 1 hour, remove the water contained in the system, then rapidly heat it to 230°C, and react at constant temperature for 8 hours to obtain the reaction product;

[0039] 3) Cool the reaction product to room temperature, add an equal volume of acetone, and centrifuge to obtain a black precipitate;

[0040] 4) The obtained black precipitate was vacuum-dried at 60° C. for 12 hours, and the obtained black powder was the iron oxide nanowire.

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Abstract

The invention discloses a preparation method of an iron oxide nanowire. The preparation method comprises the following steps: (1), mixing oleylamine with iron carboxylate to obtain mixed liquor; (2), heating up the mixed liquor obtained in the step (1) to 210-250 DEG C to carry out reaction to obtain a reaction product; (3), cooling the reaction product to the room temperature, adding acetone of equal volume, and carrying out centrifugal separation to obtain black precipitates; (4), vacuum-drying the obtained black precipitates to obtain the iron oxide nanowire. According to the preparation method of the iron oxide nanowire disclosed by the invention, the iron carboxylate is used as an iron source precursor, oleylamine is used as a solvent and a template, and the obtained iron oxide nanowire is uniform in diameter, has good organic dispersion and wide application prospect in the fields of magnetic recording, catalysis and fiber reinforcing materials. The preparation method disclosed by the invention is simple in process and device, cheap and easily available in materials, low in cost, high in yield and suitable for large-scale industrial production.

Description

technical field [0001] The invention belongs to the technical field of nanometer iron oxide, and in particular relates to a method for preparing iron oxide nanowires. Background technique [0002] Nano-iron oxide is a multifunctional material. When the particle size of iron oxide is as small as nanometer (1-100nm), the number of surface atoms, specific surface area and surface energy all increase sharply with the decrease of particle size, thus exhibiting small size effect, quantum size effect and It has the characteristics of macroscopic quantum tunneling effect, has good optical properties, magnetic properties, catalytic properties, etc., and has a wide range of applications in the fields of magnetic materials, pigments, catalysts, polymer fillers, etc. [0003] Studies have shown that the performance of nanomaterials is not only affected by their particle size, but also closely related to their microscopic appearance (Feng Yi et al., Research on the Morphology Regulation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/06B82Y40/00B82Y30/00
Inventor 陈国胜陈国荣张向东
Owner XINXIANG UNIV
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