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Hydroxy and amino functionalized echinus-like carbon coated ferriferrous oxide material and preparation thereof

A technology of carbon-coated ferric oxide and amino functionalization, which is applied in the field of carbon nanomaterials and can solve the problems of 3D nanostructure synthesis that have not been reported.

Inactive Publication Date: 2009-07-22
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the synthesis of 3D nanostructures of carbon-coated Fe3O4 materials has not been reported

Method used

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  • Hydroxy and amino functionalized echinus-like carbon coated ferriferrous oxide material and preparation thereof
  • Hydroxy and amino functionalized echinus-like carbon coated ferriferrous oxide material and preparation thereof
  • Hydroxy and amino functionalized echinus-like carbon coated ferriferrous oxide material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Weigh 0.2mM ferrocene and 0.2mM trichlorophenol, fully stir and ultrasonically dissolve them in 25mLPEG200, keep the molar ratio of ferrocene and trichlorophenol at 1:1, keep ferrocene and The molar concentration of trichlorophenol is 0.008mol / L; add ammonia water to make the concentration of ammonia water 0.5mol / L; repeat ultrasonic to make it completely dispersed. Finally, the solution was poured into a polytetrafluoroethylene-lined stainless steel reactor and reacted at a constant temperature of 250°C for 24 hours. After the reaction is over, take out the reactor, cool it down naturally, collect the samples, repeatedly wash with ethanol and ultrasonically, centrifuge at 3500rpm, collect the samples, and dry them at 60°C to obtain hydroxyl and amino functionalized sea urchin-like carbon-coated ferric oxide Material.

[0032] figure 1 Electron micrograph of the product prepared in Example 1;

[0033] Figure 6 It is the X-ray diffraction pattern of produ...

Embodiment 2

[0037] Example 2: Weigh 0.2mM ferrocene and 0.2mM trichlorophenol, fully stir and ultrasonically dissolve them in 25mLPEG400, keep the molar ratio of ferrocene and trichlorophenol at 1:1, keep ferrocene and The molar concentration of trichlorophenol is 0.008mol / L; Add ammoniacal liquor, make ammoniacal liquor concentration be 0.5mol / L; Repeat ultrasonic to make it disperse completely, all the other are with embodiment 1, obtain the appearance of product as follows figure 2 as shown in b.

Embodiment 3

[0038] Example 3: Weigh 0.2mM ferrocene and 0.2mM trichlorophenol, fully stir and ultrasonically dissolve them in a certain amount of PEG200, keeping the molar ratio of ferrocene and trichlorophenol at 1:1; The concentration of ferrocene or trichlorophenol is 0.02, 0.015, 0.01 and 0.005mol / L; add ammonia water to make the concentration of ammonia water 0.5mol / L; repeat ultrasonic to make it completely dispersed; the rest are the same as in Example 1 to obtain the morphology of the product Such as image 3 shown.

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Abstract

The invention discloses an urchin-shaped carbon-covered ferroferric oxide material with functionalized hydroxyl groups and amino groups, and a preparation method thereof, relating to a nano-carbon material, i.e., an urchin-shaped carbon-covered ferroferric oxide material with functionalized hydroxyl groups and amino groups and a preparation method thereof are provided. The urchin-shaped carbon-covered ferroferric oxide material takes nano ferroferric oxide as an inner core; the surface of the inner core is covered with a layer of carbon coating; the surface of the carbon coating contains amino groups and hydroxyl groups; the surface of the carbon coating has urchin-shaped protuberances; and the carbon coating contains amorphous carbon and graphitized carbon. The preparation method comprises the steps: trichlorophenol and dicyclopentadienyl iron are dissolved in a polymer to form solution A; then, ammonia is added and dissolved in the solution A to form a solution B; the solution B is transferred to a reaction kettle for reaction; and finally, the reaction products are collected together and washed to obtain the urchin-shaped carbon-covered ferroferric oxide material with functionalized hydroxyl groups and amino groups.

Description

technical field [0001] The invention relates to a carbon nanometer material, in particular to a urchin-like carbon-coated iron tetroxide material and a preparation method thereof. Background technique [0002] Iron oxide (Fe 3 o 4 ) is an important transition metal oxide, as a magnetic material, it has attracted much attention in industrial production and scientific research. The basic methods for preparing magnetic iron oxide nanomaterials and their composite materials include sol-gel method, forced hydrolysis method, co-precipitation method, hydrothermal synthesis method and so on. In recent years, spherical carbon materials with sizes from nanometer to micrometer and different structures have been successfully prepared by various methods. Hydrothermal / solvothermal is one of the effective methods for preparing nanomaterials. Carbon-coated iron oxide nanomaterials coat magnetic iron oxide in a carbon shell, which reduces the cytotoxicity and biodegradability of iron oxi...

Claims

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Application Information

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IPC IPC(8): C01G49/08C04B35/628
Inventor 翁建来琳斐王晓峰张其清
Owner XIAMEN UNIV
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