Preparation method of ferroferric oxide (Fe3O4) nanobelt in network structure

A technology of ferric oxide and network structure, which is applied in the direction of iron oxide/iron hydroxide, nanotechnology, oxides of ferrous iron, etc.

Inactive Publication Date: 2012-06-20
CHANGCHUN UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

Currently, no Fe 3 o 4 Relevant reports on network-structured nanobelts

Method used

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  • Preparation method of ferroferric oxide (Fe3O4) nanobelt in network structure
  • Preparation method of ferroferric oxide (Fe3O4) nanobelt in network structure
  • Preparation method of ferroferric oxide (Fe3O4) nanobelt in network structure

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Embodiment

[0022] Example: 1g Fe(NO 3 ) 3 9H 2 O was added in 10g DMF and magnetically stirred and mixed evenly, then added 3.6g PVP, continued to stir for 12h to obtain a spinning solution, added the prepared spinning solution into the liquid storage tube of the spinning device, inserted a carbon rod as an anode, Use barbed wire as the cathode, the inner diameter of the nozzle is 0.5mm, adopt the vertical spraying method, the nozzle is perpendicular to the horizontal plane, apply a DC voltage of 8kV, the curing distance is 14cm, the room temperature is 18-25°C, and the relative humidity is 40%-70%. Electrospinning is carried out to obtain PVP / Fe(NO 3 ) 3 Composite nanoribbons with a width of about 13.35 μm and a thickness of about 139 nm, see figure 1 shown; the PVP / Fe (NO 3 ) 3 The composite nanobelts were heat-treated in a programmable temperature-controlled furnace, and the temperature was raised to 650°C at a rate of 1°C / min and kept for 4 hours, and then naturally cooled to r...

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Abstract

The invention relates to a preparation method of a ferroferric oxide (Fe3O4) nanobelt in a network structure, belonging to the technical field of the preparation of nanomaterial. In the prior art, the Fe3O4 nanoparticles, nanorods, nanowires, nanofilms, hybrid structures, nanocrystalline in a core-shell structure and nanofibers are prepared. In the invention, the Fe3O4 nanobelt in the network structure is prepared by adopting the electrostatic spinning technology and the hydrogen thermal reduction technology. The preparation method of theFe3O4 nanobelt in the network structure comprises the following steps: (1) preparing a PVP/Fe(NO3)3 composite nanobelt by adopting the electrostatic spinning technology; (2) preparing an alpha-Fe2O3 nanobelt by carrying out thermal treatment to the PVP/Fe(NO3)3 composite nanobelt; and (3) carrying out thermal reduction to the alpha-Fe2O3 nanobelt by the mixed gas of hydrogen and nitrogen to obtain the Fe3O4 nanobelt in the network structure. The Fe3O4 nanobelt in the network structure has a good crystal type, has the width of about 3.5mu m, the thickness about 50nm and the length of more than 50mum. The preparation method of the Fe3O4 nanobelt in the network structure is simple and practical, can be used for bath production and has wide application prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of nanometer materials, in particular to a method for preparing ferroferric oxide network structure nanobelts. Background technique [0002] The preparation and properties of inorganic nanoribbons are currently one of the frontier hotspots in materials science, condensed matter physics, chemistry and other disciplines. Nanoribbon is a kind of nanomaterial with ribbon structure synthesized by artificial method. Its cross section is a rectangular structure, its thickness is on the order of nanometers, its width can reach micron level, and its length can reach hundreds of microns, even several mm. Nanobelts have attracted great attention because of their novel structures different from tubes and wires, and their unique optical, electrical, and magnetic properties. [0003] Iron Tetroxide Fe 3 o 4 It is an important and widely used magnetic material, and has important applications in magnetic ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/08B82Y40/00
Inventor 董相廷马千里于文生王进贤刘桂霞徐佳
Owner CHANGCHUN UNIV OF SCI & TECH
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