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Preparation method for cerium oxide/graphene oxide nanocomposite

A nanocomposite material and graphene technology are applied in the field of preparing cerium oxide/graphene oxide nanocomposite materials, which can solve the problems of uneven dispersion of metal nanoparticles, long reaction time and high requirements, and achieve rapid preparation, short reaction time, Equipment simple effect

Inactive Publication Date: 2012-10-10
ZHEJIANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is aimed at the existing methods for preparing metal oxide / graphene oxide nanocomposites, which have high requirements for equipment, high energy consumption, long reaction time and uneven dispersion of metal nanoparticles on the surface of graphene. Inadequacies, provide a method for preparing cerium oxide / graphene oxide nanocomposite materials with low requirements on equipment, simple operation, low energy consumption, fast reaction speed and uniform dispersion of metal nanoparticles on the surface of graphene

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  • Preparation method for cerium oxide/graphene oxide nanocomposite

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Embodiment 1

[0040] A kind of preparation method of cerium oxide / graphene oxide nano composite material, the raw material of preparation cerium oxide / graphene oxide nano composite material adopts cerium nitrate, sodium acetate, urea and graphite oxide, and its cerium oxide / graphene oxide nano composite material The preparation method comprises the following steps:

[0041](1) Weigh 0.15g of cerium nitrate, 5.0g of sodium acetate, 0.3g of urea, 0.021g of graphite oxide, and 30g of water;

[0042] (2) Add graphite oxide and water into a round bottom flask, and ultrasonically make graphite oxide form a suspension in water;

[0043] (3) Put cerium nitrate, sodium acetate and urea in a round bottom flask and dissolve them in water;

[0044] (4) Put the round bottom flask into a microwave reactor with a reflux device, turn on the reactor, control the power of the microwave reactor to 500W, and react for 15 minutes to obtain a black precipitate, which is cerium oxide / graphene oxide nanocomposite...

Embodiment 2

[0046] A kind of preparation method of cerium oxide / graphene oxide nanocomposite material, the raw material of preparation cerium oxide / graphene oxide nanocomposite material adopts cerous chloride, sodium acetate, urea and graphite oxide, its cerium oxide / graphene oxide nanocomposite The preparation method of material comprises the following steps:

[0047] (1) Weigh 0.3g of cerous chloride, 10.0g of sodium acetate, 0.6g of urea, 0.042g of graphite oxide, and 60g of water;

[0048] (2) Add graphite oxide and water into a round bottom flask, and ultrasonically make graphite oxide form a suspension in water;

[0049] (3) Put cerous chloride, sodium acetate and urea in a round bottom flask to dissolve them in water;

[0050] (4) Put the round bottom flask into a microwave reactor with a reflux device, turn on the reactor, control the power of the microwave reactor to 500W, and react for 15 minutes to obtain a black precipitate, which is cerium oxide / graphene oxide nanocomposite ...

Embodiment 3

[0052] A kind of preparation method of cerium oxide / graphene oxide nanocomposite material, the raw material of preparation cerium oxide / graphene oxide nanocomposite material adopts cerium sulfate, sodium acetate, urea and graphite oxide, and its cerium oxide / graphene oxide nanocomposite material The preparation method comprises the following steps:

[0053] (1) Weigh 0.15g of ceric sulfate, 5.0g of sodium acetate, 0.3g of urea, 0.021g of graphite oxide, and 30g of water;

[0054] (2) Add graphite oxide and water into a round bottom flask, and ultrasonically make graphite oxide form a suspension in water;

[0055] (3) Put ceric sulfate, sodium acetate and urea in a round bottom flask to dissolve them in water;

[0056] (4) Put the round bottom flask into a microwave reactor with a reflux device, turn on the reactor, control the power of the microwave reactor to 500W, and react for 15 minutes to obtain a black precipitate, which is cerium oxide / graphene oxide nanocomposite Mat...

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Abstract

The invention relates to a preparation method for cerium oxide / graphene oxide nanocomposite. The invention aims at providing a preparation method of cerium oxide / graphene oxide nanocomposite, and the preparation method is low in equipment requirement, simple to operate and fast in reaction speed, and is capable of saving energy consumption and uniformly dispersing metal nanoparticles on the surface of graphene. The method comprises the steps of: based on cerate, sodium acetate, urea and graphite oxide as raw materials, placing graphite oxide and water into a container, and carrying out ultrasonic treatment so that graphite oxide form a suspension in the water; placing cerate, sodium acetate and urea into the container for dissolving cerate, sodium acetate and urea into the water; and placing the container into a reactor with a backflow device for reaction until the reaction is finished, so as to obtain a black precipitate namely cerium oxide / graphene oxide nanocomposite.

Description

technical field [0001] The invention belongs to the field of inorganic nanocomposite materials, in particular to a method for preparing cerium oxide / graphene oxide nanocomposite materials by using cerium salt, sodium acetate, urea and graphite oxide as raw materials. Background technique [0002] graphene is sp 2 Hybridized carbon atoms are arranged in a honeycomb-like hexagonal planar crystal, a two-dimensional material with a thickness of only one carbon atom. British scientists successfully separated graphene from graphite in the laboratory and won the 2010 Nobel Prize in Physics. Due to the unique two-dimensional structure and excellent crystallographic quality of graphene, it can be used not only as a reinforcement of composite materials, but also as a high value-added functional material. However, the strong intermolecular force between graphene sheets makes it prone to agglomeration and difficult to dissolve in water and common organic solvents. In order to give fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10B82Y30/00
Inventor 杜高辉常玲
Owner ZHEJIANG NORMAL UNIVERSITY
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