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Preparation method of CoFe2O4 nano particle

A kind of nanoparticle, No. 1 technology, applied in the field of CoFe2O4 nanoparticle preparation, can solve the problems that affect the preparation efficiency of carboxylated cobalt ferrite magnetic nanoparticles, poor water dispersion effect, low combustion furnace efficiency, etc., to improve combustion efficiency and Combustion quality, high reliability, effect of reducing outflow

Active Publication Date: 2019-01-25
东营睿港投资服务有限责任公司
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AI Technical Summary

Problems solved by technology

The reported or disclosed methods have disadvantages such as poor water dispersion effect or cumbersome steps and high functionalization cost. The efficiency of the combustion furnace in the preparation process is not high, which seriously affects the preparation efficiency of carboxylated cobalt ferrite magnetic nanoparticles.

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  • Preparation method of CoFe2O4 nano particle
  • Preparation method of CoFe2O4 nano particle
  • Preparation method of CoFe2O4 nano particle

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] Such as Figure 1 to Figure 5 Shown, a kind of CoFe described in the present invention 2 o 4 A preparation method for nanoparticles, the preparation method comprising the steps of:

[0026] S1: Cobalt sulfate aqueous solution, ferrous salt aqueous solution and oxalate aqueous solution of a certain concentration are mixed in a reactor and then left to age at a temperature of 30-60°C. After aging for 4-6 hours, filter to obtain a filter cake;

[0027] S2: The iron-cobalt oxalate precursor is prepared by dehydrating and drying the filter cake of S1, and the iron-cobalt oxalate precursor is sent into a combustion furnace, and calcined for 3-5 hours in an air atmosphere at 400-500°C. cobalt ferrite;

[0028] S3: hydrothermally carbonize the ...

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Abstract

The invention belongs to the technical field of inorganic materials, and particularly relates to a preparation method of a CoFe2O4 nano particle. A combustion furnace in the preparation method comprises a furnace body, a material box, a supporting plate, an upper sliding plate, a lower sliding plate and a driving module, wherein the upper sliding plate is eccentrically provided with a 1# rectangular sliding chute; the lower sliding plate is eccentrically provided with a 2# rectangular sliding chute; a 1# cylindrical bulge is arranged above one end of a driving plate; the 1# cylindrical bulge slides in the 1# rectangular chute; a 2# cylindrical bulge is arranged below the other end of the driving plate; and the 2# cylindrical bulge slides in the 2# rectangular chute. According to the invention, the upper sliding plate and the lower sliding plate are driven to continuously and relatively slide through arranging a driving shaft, so as to realize the effect that a combustion improver is continuously ejected upwards on the left and right sides of the supporting plate; therefore, the combustion efficiency is high; further, the on-off control of the whole combustion furnace is realized through a mechanical structure; therefore, the reliability is high; furthermore, the combustion quality of the combustion furnace is ensured; and furthermore, the preparation efficiency of a carboxylated cobalt ferrite magnetic nano particle is improved.

Description

technical field [0001] The invention belongs to the technical field of inorganic materials, specifically a CoFe 2 o 4 Methods for the preparation of nanoparticles. Background technique [0002] Magnetic nanoparticles have good biocompatibility and special magnetism, and have shown great promise in the fields of nuclear magnetic resonance imaging, targeted drugs, enzyme immobilization, immunoassay, tissue repair and cell separation, etc. potential application prospects. However, due to the high specific surface area, magnetic nanoparticles have a strong tendency to aggregate, have poor water solubility and are easy to agglomerate without surface treatment, and cannot meet the application requirements in the fields of biomedicine and water treatment. Therefore, special modifications must be made on the surface of magnetic nanoparticles to improve their water solubility, dispersion stability and biocompatibility; in addition, the modified magnetic nanoparticles can be introd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/00B82Y40/00B82Y30/00H01F1/01
CPCB82Y30/00B82Y40/00C01G51/006C01P2004/80H01F1/01
Inventor 孙亚娟高娟都一鸣刘世球
Owner 东营睿港投资服务有限责任公司
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