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Method for preparing Fe3O4 powder with ordered nano array structure

A nano-array and orderly technology, applied in the field of Fe3O4 powder preparation, can solve the problems of harsh conditions, high price, complicated process, etc., and achieve the effect of saving energy consumption and good spatial symmetry

Inactive Publication Date: 2007-08-29
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to provide a kind of Fe with ordered nano-array structure 3 o 4 The preparation method of the powder adopts the anionic surfactant sodium dodecylsulfonate as the template agent, and prepares the ferric oxide powder with an ordered nano-array structure by the hydrothermal method in the ethanol water system, which not only overcomes the existing Generally, the preparation method of nanometer ferroferric oxide has the disadvantages of complex process, harsh conditions and high cost, and also overcomes the disadvantages of using cationic surfactant as a template in the existing method for preparing ordered nanoarray structure materials, high toxicity and high price. shortcoming

Method used

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  • Method for preparing Fe3O4 powder with ordered nano array structure
  • Method for preparing Fe3O4 powder with ordered nano array structure

Examples

Experimental program
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Effect test

Embodiment 1

[0022] (1) Dissolve 0.025mol ferric trichloride and 0.015mol ferric chloride in a beaker filled with 50mL deionized water to prepare an iron salt solution with a molar concentration of 0.0008 mol iron / milliliter of water, and another 0.0018mol Sodium dodecylsulfonate was dissolved in a beaker filled with 50mL ethanol solution, and the molar concentration was prepared to be 3.6×10 -5 moles of sodium dodecylsulfonate / per milliliter of ethanol in ethanol solution of sodium dodecylsulfonate, then preheat the two to 60°C and mix them, add them to a flask with a reflux device, under electromagnetic stirring, 60 ℃ heat preservation, stand-by;

[0023] (2) 0.125mol sodium hydroxide is dissolved in 50mL water, is mixed with the sodium hydroxide solution of 0.0025 mole sodium hydroxide / every milliliter of water, then adds 50mL ethanol, is mixed with sodium hydroxide ethanol mixture, stand-by;

[0024] (3) Preheat the mixed solution prepared in step (2) to 60°C, quickly add it to the st...

Embodiment 2

[0029] (1) Dissolve 0.025mol of ferric chloride and 0.015mol of ferric chloride in a beaker filled with 50mL of deionized water to prepare an iron salt solution with a molar concentration of 0.0008 mol of iron / milliliter of water, and another 0.0009mol Sodium dodecylsulfonate was dissolved in a beaker filled with 25mL ethanol solution, and the molar concentration was prepared to be 3.6×10 -5 Moles of sodium dodecyl sulfonate / per milliliter of ethanol in ethanol solution of sodium dodecyl sulfonate, then preheat the two to 70°C and mix them, add them to a flask with a reflux device, under electromagnetic stirring, 70 ℃ heat preservation, stand-by;

[0030](2) Dissolve 0.125 mol of sodium hydroxide in 50 mL of water to prepare a sodium hydroxide solution of 0.0025 mol of sodium hydroxide / per milliliter of water, then add 25 mL of ethanol to prepare a sodium hydroxide-ethanol mixture for use;

[0031] (3) Preheat the mixed solution prepared in step (2) to 70°C, quickly add it to...

Embodiment 3

[0034] (1) Dissolve 0.025mol of ferric chloride and 0.015mol of ferric chloride in a beaker filled with 50mL of deionized water to prepare an iron salt solution with a molar concentration of 0.0008 mol of iron / milliliter of water, and another 0.0036mol Sodium dodecylsulfonate was dissolved in a beaker filled with 100mL ethanol solution, and the molar concentration was prepared to be 3.6×10 -5 moles of sodium dodecylsulfonate / per milliliter of ethanol in ethanol solution of sodium dodecylsulfonate, then the two are preheated to 80°C and mixed, then added to a flask with a reflux device, under electromagnetic stirring, 80 ℃ heat preservation, stand-by;

[0035] (2) Dissolve 0.125 mol of sodium hydroxide in 50 mL of water to prepare a sodium hydroxide solution of 0.0025 mol of sodium hydroxide / per milliliter of water, then add 100 mL of ethanol to prepare a sodium hydroxide-ethanol mixture for use;

[0036] (3) Preheat the mixed solution prepared in step (2) to 80°C, quickly add...

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Abstract

The invention relates to a manufacturing method Fe3O4 powder that has ordered nanometer array architecture. It mixes ferric chloride and bichloride iron ratio of 1.67-2:1 to 0.0008-0.0009mol ferric / ml, and 1.21*10-5-2.45*10-4mol sodium dodecanesulphonate / ml and the alcohol sodium dodecanesulphonate alcohol solution according 30:15-60 at 60-80 degree centigrade, and adding NaOH alcohol mixed liquor, heating to 88-92 degree centigrade, taking hydrothermal reaction for 4-14 hours, laying resultant for 0-3 days in room temperature, taking centrifugal separation, gaining black deposit dipping in deionized water for 0-3 days, taking centrifugal separation, and drying 1-2 days at 60-80 degree centigrade, the Fe3O4 powder with ordered nanometer array structure would be gained. The invention conquers the disadvantages of high price, high temperature and high pressure, etc.

Description

technical field [0001] Technical scheme of the present invention relates to the oxide (Fe 3 o 4 ), specifically Fe with an ordered nanoarray structure 3 o 4 Powder preparation method. Background technique [0002] Ferric oxide (Fe 3 o 4 ) is a traditional magnetic material, and the preparation technology of nanometer iron tetroxide magnetic material has become one of the hotspots of international research. Nano-ferric oxide, especially ordered nano-ferric oxide, is used in high-density magnetic recording materials, gas-humidity sensors, magnetic immune cell separation, and nuclear magnetic resonance imaging due to its remarkable magnetic and gas-humidity-sensitive properties. And the field of drug controlled release has huge application prospects. [0003] Paper "Study on Preparation of Orderly Arranged Fe3O4 / Chitosan Nanocomposites by In-Situ Precipitation" (Hu Qiaoling, Chen Fuping, Li Baoqiang, Shen Jiacong, Chemical Journal of Chinese Universities, 2005, 26: 1960-...

Claims

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Application Information

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IPC IPC(8): C01G49/08B82B3/00
Inventor 刘超李养贤纪秀杰赵建玲
Owner HEBEI UNIV OF TECH
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