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Method for preparing graphene-ferric oxide nano-particle composite material

A technology of ferric oxide and nano-particles, which is applied in the field of nano-material manufacturing, can solve the problems of high product energy consumption, complex product process, large size of ferric oxide nanoparticles, etc., and achieve the goal of simple method and reduced grain size Effect

Active Publication Date: 2013-12-11
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Judging from the currently disclosed preparation methods, the size of ferric oxide nanoparticles obtained by the existing methods is relatively large, and the product process is complicated, which cannot meet the needs of industrialization and large-scale preparation, and the product consumes high energy consumption.

Method used

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  • Method for preparing graphene-ferric oxide nano-particle composite material
  • Method for preparing graphene-ferric oxide nano-particle composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The raw material graphene oxide and ferric chloride are dissolved in deionized water according to the mass ratio of 1:10, mixed evenly by ultrasonic, then centrifuged and cleaned;

[0016] The obtained product was heated to 1000 degrees centigrade in a vacuum tube furnace for heat treatment for 5 minutes, and after the product was cooled to room temperature, it was taken out to obtain a graphene-ferric oxide nanoparticle composite material.

[0017] The product was characterized by transmission electron microscopy, and the results were as follows: figure 1 As shown, it can be seen that tin dioxide nanoparticles are attached to the graphene surface, and the tin dioxide particle size is less than 10 nanometers.

Embodiment 2

[0019] The raw material graphene oxide and ferrous nitrate are dissolved in deionized water according to the mass ratio of 100:1, and then filtered and separated by stirring and mixing evenly and cleaned;

[0020] The obtained product was heated to 300 degrees Celsius in an oxygen environment for heat treatment for 10 hours, and after the product was cooled to room temperature, it was taken out to obtain a graphene-ferric oxide nanoparticle composite material.

[0021] The obtained result is similar to Example 1.

Embodiment 3

[0023] The raw material graphene oxide and ferric sulfate are dissolved in deionized water according to the mass ratio of 1:1, stirred and mixed evenly, then centrifuged and cleaned;

[0024] The obtained product was heated to 500 degrees centigrade in the air for heat treatment for 2 hours, and after the product was cooled to room temperature, it was taken out to obtain a graphene-ferric oxide nanoparticle composite material.

[0025] The obtained result is similar to Example 1.

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Abstract

The invention discloses a method for preparing a graphene-ferric oxide nano-particle composite material. The method comprises the following steps: (1) dissolving raw materials, namely graphene oxide and an iron salt, into water according to a certain mass ratio, and mixing uniformly; (2) separating the graphene oxide from the mixed liquid obtained in the step (1) through centrifugation or leaching, and cleaning completely by using water or alcohol; (3) carrying out heat treatment on a product obtained in the step (2) in air or oxygen, thereby obtaining the graphene-ferric oxide nano-particle composite material, wherein the iron salt is one of ferric chloride, ferrous chloride, ferric nitrate, ferrous nitrate, ferric sulfate and ferrous sulfate, the temperature of the heat treatment is 300-1,000 DEG C, and the heat treatment time is 5 minutes to 10 hours. According to the method, the preparation is simple, and the consumption of chemical reagents is reduced effectively, so that the method is environmental-friendly.

Description

technical field [0001] The invention relates to the field of nanomaterial manufacturing, in particular to a method for preparing a graphene-ferric oxide nanoparticle composite material. Background technique [0002] Graphene is a carbon material with a two-dimensional honeycomb structure formed by a single layer of carbon atoms, and has excellent mechanical and electrical properties. At the same time, graphene has a high specific surface area and can be used as a carrier material for nanomaterials. [0003] Fe2O3 nanomaterials can be used in lithium-ion battery electrode materials, water purification materials, supercapacitor electrode materials, electromagnetic absorbing materials, and magnetic materials. Graphene-Fe2O3 nanocomposites can inhibit While agglomerating iron nanomaterials, it maintains the excellent properties of the material itself, so it has been widely studied. At present, there are many preparation methods for such materials, the most important of which i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/00B82Y40/00
Inventor 尹奎波陈方韬孙立涛
Owner SOUTHEAST UNIV