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FexOy-based inorganic nanocomposite and preparation method thereof

A composite material, inorganic nanotechnology, applied in the fields of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, which can solve the problem of single composite material morphology, few nanocomposite materials, and poor types of composite nanomaterials. and other problems, to achieve the effect of high yield and simple steps

Active Publication Date: 2012-11-07
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although there are many preparations based on FeO x However, the types of composite nanomaterials are still relatively poor, and there are few universal methods for preparing nanocomposites, and the morphology of composite materials prepared by the same method is mostly a single one.
It is still challenging to develop a universal method to prepare composite nanomaterials with different compositions and different appearances

Method used

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  • FexOy-based inorganic nanocomposite and preparation method thereof
  • FexOy-based inorganic nanocomposite and preparation method thereof
  • FexOy-based inorganic nanocomposite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1) Add 0.5mmol Ni(NO 3 ) 2 ·6H 2 O was added to 25 ml deionized H 2 O, stirred at room temperature until completely dissolved, 0.08g Fe 3 o 4 Nanoclusters (Fe 3 o 4 For the synthesis of nanoclusters, refer to Angew.Chem.Int.Ed.2005, 44, 2782-2785) Add the obtained clear solution, stir at room temperature for ≥0.5h, then add 10ml0.5mol L dropwise -1 NaOH aqueous solution, stirred at room temperature for ≥15min.

[0028] 2) Transfer the solution obtained in 1) to a 50ml automatic pressure-relieving stainless steel high-pressure digestion tank with a Teflon liner (Binhai County Zhenghong Plastic Factory, model: 50ml), and after 24 hours of treatment at 180 ° C, the natural Cool to room temperature;

[0029] 3) Magnetically separate the solution obtained in 2), and clean the separated solid with a mixed solvent of ethanol and water under ultrasonic conditions, and go through magnetic separation-ultrasonic cleaning cycles for 3-5 times, and finally the cleaned solid ...

Embodiment 2

[0032] Repeat Example 1, the only difference is to process 4h at 180°C to obtain the inorganic nanocomposite material Fe 3 o 4 / NiO.

Embodiment 3

[0034] Repeat embodiment 1, difference is only to use Bi(NO 3 ) 3 ·5H 2 O instead of Ni(NO 3 ) 2 ·6H 2 O, the inorganic nanocomposite Fe 3 o 4 / BiFeO 3 . figure 2 For the inorganic nanocomposite Fe 3 o 4 / BiFeO 3 Electron microscope photographs, via figure 2 It can be seen that the prepared composite nanomaterial has a spherical morphology.

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Abstract

The invention discloses a preparation method of an inorganic nanocomposite FexOy / M. The preparation method includes: mixing precursor solution of M to prepare Fe3O4 nano clusters and proper alkali solution, performing hydrothermal treatment at a certain temperature for a certain time to obtain a product, and separating-cleaning, drying the product to obtain the inorganic nanocomposite FexOy / M; wherein the FexOy is Fe3O4 or Fe2O3, M is one or mixture of two of NiO, BiFeO3, La(OH)3, Cd(OH)2, CuO, and FeOOH. The preparation method is simple, universal, and a huge progress, and breaks through the limit that composite with one component or inorganic nanocomposite with one morphology can be prepared in the prior art. The nanocomposite prepared by the method has application prospect in fields such as nano catalysis, solar energy conversions, lithium ion batteries, and gas sensitive devices.

Description

technical field [0001] The invention relates to a class of inorganic nanocomposite materials and a preparation method thereof, in particular to a class of Fe-based x o y Inorganic nanocomposite materials and methods for their preparation. Background technique [0002] Since the 1980s, nanomaterials have developed rapidly due to their unique optical, electrical, acoustic, thermal and magnetic properties and attractive application prospects in the fields of biomedicine, environmental governance, and industrial catalysis. Nanocomposite materials are composites of two or more nanomaterials. This type of composite material not only has the characteristics of nanomaterials, but also can realize the integration of properties and functions of different materials, which endows nanomaterials with new functions and broadens the scope of development. Applications of nanomaterials. FeOx-based nanocomposites have received increasing attention due to their magnetic, catalytic, and optic...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J23/843B01J23/83B01J23/745B01J23/80B82Y30/00B82Y40/00
Inventor 张铁锐张东慧梁运辉尚露吴骊珠佟振合
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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