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Ferrum oxidate nano magnetic material and method for preparing the same

A technology of nano-magnetic materials and oxides, applied in the field of iron oxide nano-magnetic materials and its preparation, to achieve the effects of convenient operation, simple preparation process, and simplified preparation process

Inactive Publication Date: 2010-07-28
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, magnetic materials with high specific surface area and good magnetic properties, and hollow spheres assembled from nanosheets have not yet been synthesized.

Method used

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  • Ferrum oxidate nano magnetic material and method for preparing the same
  • Ferrum oxidate nano magnetic material and method for preparing the same
  • Ferrum oxidate nano magnetic material and method for preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] At room temperature, 0.541 g of ferric chloride hydrate and 0.600 g of sodium dodecylbenzenesulfonate were dissolved in 20 ml of ethylene glycol, stirred and dissolved at room temperature to obtain a uniformly dispersed solution. In addition, 0.160 g of sodium hydroxide was dissolved in 10 ml of ethylene glycol, stirred and dissolved at room temperature, and a uniformly dispersed solution was obtained. The above two solutions were mixed and stirred at room temperature to obtain a uniformly dispersed suspension. Take 20 ml of the suspension and transfer it into a polytetrafluoroethylene liner (the capacity of the liner is 60 ml), and seal it. Put the inner lining into a microwave hydrothermal reaction device and keep it warm at 200°C for 90 minutes. After the reaction system was naturally cooled to room temperature, the product was taken out, and the product was separated by centrifugation. The separated product was washed three times with absolute ethanol, and dried in...

Embodiment 2

[0027] At room temperature, 0.541 g of ferric chloride hydrate and 0.600 g of sodium dodecylbenzenesulfonate were dissolved in 20 ml of ethylene glycol, stirred and dissolved at room temperature to obtain a uniformly dispersed solution. In addition, 0.160 g of sodium hydroxide was dissolved in 10 ml of ethylene glycol, stirred and dissolved at room temperature, and a uniformly dispersed solution was obtained. The above two solutions were mixed and stirred at room temperature to obtain a uniformly dispersed suspension. Take 20 ml of the suspension and transfer it into a polytetrafluoroethylene liner (the capacity of the liner is 60 ml), and seal it. Put the inner lining into a microwave hydrothermal reaction device and keep it warm at 200°C for 90 minutes. After the reaction system was naturally cooled to room temperature, the product was taken out, and the product was separated by centrifugation. The separated product was washed three times with absolute ethanol, and dried in...

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Abstract

The invention relates to a nanomagnetic material of iron oxide and the fabrication method, and belongs to the nano-material fabrication field; the invention adopts glycol as a solvent and a reducing agent, and adopts sodium dodecyl benzene sulfonate as a surfactant, and adopts dissoluble trivalent iron sodium and alkali as a raw material, a mixing process under a room temperature is conducted to make a homogeneous suspension; the mixed liquid is turned into a polytetrafluoroethene lining to conduct a microwave water thermal reaction, after the reaction is over, the product from the reaction is separated, washed and dried to make a precursor nano-powder which is calcined to make a ferroferric oxide nano-powder or gamma ferric oxide nano-powder; the nano-powder body has a hollow ball structure assembled by a nano-piece, the hollow ball dimension is two to four micron while the inner hollow dimension of the hollow ball is one to three micron; the invention is characterized in low raw material cost, easy process, easy operation, controllable profile and so forth; the specific surface area is high, the magnetic performance is favorable.

Description

technical field [0001] The invention relates to an iron oxide nano magnetic material and a preparation method thereof, belonging to the field of nano material preparation. Background technique [0002] In recent years, the synthesis of nanomagnetic materials has attracted more and more researchers' interest as an important research field. (D.B.Yu, X.Q.Sun, J.W.Zou, Z.R.Wang, F.Wang, K.Tang, J.Phys.Chem.B 2006, 110, 21667; M.Arruebo, M.Galán, N.Navascués, C.Téllez, C.Marquina, M.R.Ibarra, J.Santamaría, Chem.Mater.2006, 18, 1911.) Due to its good magnetic properties, chemical stability, biocompatibility and low toxicity, the research of nano-magnetic materials has not only limited Based on the research of basic science, but also extended to the field of biomedicine, especially the research of targeted drug delivery. (J.M.Nam, C.S.Thaxton, C.A.Mirkin, Science2003, 301, 1884; I.Willner, E.Katz, Angew.Chem.2003, 115, 4724; Angew.Chem.Int.Ed.2003, 42, 4576; M. Zhao, M.F.Kircher...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/04C01G49/08
Inventor 朱英杰曹少文
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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