Preparation method for magnetic nanowire

A magnetic nanometer and nanowire technology, applied in the direction of nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of poor quality and low yield of nanowires, and achieve the effects of simple operation, environmental protection and cost saving

Inactive Publication Date: 2019-04-05
鄄城永铭地毯有限公司
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Problems solved by technology

Among the current preparation methods of magnetic Fe3O4 nanowires and spinel-type ferrite nanowires, the yield of nanowires obtained by sol-gel method and magnetic field-

Method used

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Embodiment Construction

[0006] The technical solutions of the present invention will be further described in detail through the following examples.

[0007] This embodiment is carried out according to the following steps: 1. Prepare a metal ion solution with a total metal ion concentration of 0.01 to 0.5 mol / L with distilled water, ferric chloride and divalent metal chloride, in which ferric chloride and divalent metal chloride The mass ratio of the product is 2:1, sodium hydroxide or ammonia water is added to distilled water to prepare an alkali solution with a concentration of 0.5-5 mol / L, sodium thiosulfate, sodium borohydride or hydrazine hydrate is added to the distilled water to prepare a concentration of 0.2~2mol / L water-soluble reducing agent solution; 2. Mix the metal ion solution, alkali solution and water-soluble reducing agent solution, put the mixed solution into a sealed reactor, and then place it in a magnetic field heat treatment furnace to react for 2~10h , The magnetic field intensity ...

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Abstract

A preparation method for a magnetic nanowire is disclosed. The preparation method includes the following steps: step 1. preparing a metal ion solution, an alkali solution and a water-soluble reducingagent solution; step 2. mixing the metal ion solution, the alkali solution and the water-soluble reducing agent solution, charging a reaction kettle, and reacting in a magnetic field heat treatment furnace; and step 3. obtaining the magnetic nanowire by washing and drying. The preparation method solves the problems that preparation methods of existing Fe3O4 nanowires and spinel type ferrite nanowires are complicated in operation, are high in cost and are low in nanowire yield. The preparation method is simple in operation, does not pollute environment, and is low in cost, and the yield of theprepared magnetic nanowire is 95.6-99.9%. The preparation method is applied in the field of magnetic materials.

Description

Technical field [0001] The invention belongs to the technical field of nanowire preparation, and specifically relates to a method for preparing magnetic nanowires. Background technique [0002] There are many types of existing nanowires, and as one of the members of nanomaterials, magnetic nanowires are widely used due to their excellent magnetic properties. Among them, magnetic Fe3O4 nanowires and spinel-type ferrite nanowires have important applications in many fields such as magnetic recording media, photocatalysis, magnetic fluids, and pigment dyes. Among the current preparation methods of magnetic Fe3O4 nanowires and spinel ferrite nanowires, the sol-gel method and the magnetic field-assisted hydrothermal method have low yields of nanowires and a wide range of nanowire diameters. And the product often contains a lot of nanoparticles, and the quality is poor. Summary of the invention [0003] In view of the above-mentioned problems and deficiencies in the prior art, the pres...

Claims

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Application Information

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IPC IPC(8): C01G49/08C01G49/00C01G51/00C01G53/00B82Y30/00B82Y40/00
CPCC01G49/08B82Y30/00B82Y40/00C01G49/0063C01G49/0072C01G51/00C01G53/00C01P2004/16
Inventor 黄勇
Owner 鄄城永铭地毯有限公司
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