Copper ferrite-graphene nano complex and preparation method thereof

A nano-composite and nano-composite material technology, applied in the field of nano-composite material preparation, can solve the problems of poor performance, easy agglomeration of copper ferrite, etc., and achieve good application prospects and economic benefits

Inactive Publication Date: 2012-07-04
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing copper ferrite preparation method (Zhipeng Sun, Lang Liu, Dian zeng Jia, Weiyu Pan, Simple synthesis of CuFe2O4 nanoparticles as gas-sensing materials, Sensors and Actuators B 125 (2007) 144–148; Satoshi Kameoka, Toyokazu Tanabe, An Pang Tsai, Self-assembled porous nano-composite with high catalytic performance by reduction of tetragonal spinel CuFe2O 4, Applied Catalysis A: General, 375 (2010) 163–171), all obtained by high-temperature calcination, the prepared copper ferrite is prone to agglomeration, resulting in poor performance
The preparation of nano-copper ferrite by soft chemical method with mild experimental conditions has not been reported yet

Method used

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  • Copper ferrite-graphene nano complex and preparation method thereof
  • Copper ferrite-graphene nano complex and preparation method thereof
  • Copper ferrite-graphene nano complex and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Implementation example 1: The preparation method of the copper ferrite-graphene (10 wt%) nanocomposite of the present invention comprises the following steps:

[0028] In the first step, graphite oxide is prepared by the hummer method. Add 10 g of graphite powder to potassium persulfate (5 g) and phosphorus pentoxide (5 g) in concentrated sulfuric acid solution (15 mL) at 80 °C, pre-oxidize for 6 hours, then cool to room temperature, filter, and wash to medium sex. Add pre-oxidized graphite powder (10 g) to 230 mL of concentrated sulfuric acid solution at 0°C, then carefully add 30 g of potassium permanganate, then react at 35°C for 2 hours, and finally add 1L of deionized water to the reaction solution and 25mL of 30% hydrogen peroxide to terminate the reaction, filter, wash, and dialyze to obtain graphite oxide; place 26.5mg of graphite oxide in 50mL of ethanol for ultrasonic dispersion for 30min;

[0029] In the second step, dissolve 0.2416g of copper nitrate and...

Embodiment 2

[0033] Implementation example 2: The preparation method of the copper ferrite-graphene (25 wt%) nanocomposite of the present invention comprises the following steps:

[0034] The first step, the preparation of graphite oxide is the same as in Example 1, and 80 mg of graphite oxide is placed in 50 mL of ethanol for ultrasonic dispersion for 60 min;

[0035] In the second step, dissolve 0.2416g of copper nitrate and 0.8080g of ferric nitrate in 20mL of ethanol and stir for 60min;

[0036] In the third step, the first step is mixed with the second step, and stirred for 60 minutes, and the pH is adjusted to 10 with 6M sodium hydroxide solution;

[0037] The fourth step is to transfer the mixed solution of the third step to a 100mL hydrothermal kettle and react at 180°C for 20h;

[0038] The 5th step, with the step 5 in the implementation example 1, obtain copper ferrite-graphene (25 wt%) nanocomposite after drying, its XRD collection of patterns and TEM photos are as follows ...

Embodiment 3

[0039] Implementation example 3: The preparation method of the copper ferrite-graphene (35 wt%) nanocomposite of the present invention comprises the following steps:

[0040] The first step, the preparation of graphite oxide is the same as in Example 1, and 129 mg of graphite oxide is placed in 50 mL of ethanol for ultrasonic dispersion for 60 min;

[0041] In the second step, dissolve 0.2416g of zinc acetate and 0.8080g of ferric nitrate in 20mL of ethanol and stir for 60min;

[0042] In the third step, the first step is mixed with the second step, and stirred for 60 minutes, and the pH is adjusted to 12 with 6M sodium hydroxide solution;

[0043] The fourth step is to transfer the mixed solution of the third step to a 100mL hydrothermal kettle and react at 160°C for 16h;

[0044] The fifth step is the same as the step five in the implementation example 1, and the copper ferrite-graphene (35 wt%) nanocomposite is obtained after drying.

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Abstract

The invention discloses a copper ferrite-graphene nano complex and a preparation method of the copper ferrite-graphene nano complex. The preparation method comprises the steps of: ultrasonically dispersing graphite oxide in ethanol, adding ferric nitrate and copper nitrate to ethanol, stirring for dissolving, then mixing two systems, transferring the mixed system to a hydrothermal kettle for reaction, after reaction is finished, centrifugally separating the product, washing and drying to obtain the copper ferrite-graphene nano complex. According to the invention, copper ferrite nano sheets with uniform size and uniform dispersing are prepared with graphene as a supporting material by a hydrothermal synthesis method. The copper ferrite-graphene nano complex prepared by the preparation method disclosed by the invention has better application prospects and economic benefits in the aspects of sewage treatment and lithium ion cells.

Description

technical field [0001] The invention belongs to the field of preparation of nanocomposite materials, and in particular relates to a copper ferrite nanosheet with uniform size and uniform dispersion deposited on the surface of graphene, especially copper ferrite-graphene nanocomposite method of preparation. Background technique [0002] Copper ferrite with a spinel structure has been widely used in the fields of information storage, electrical devices and drug carriers due to its good magnetic properties and excellent stability. So far, there are few reports on the use of copper ferrite with spinel structure as a visible light catalyst and lithium battery material. In the existing copper ferrite preparation method (Zhipeng Sun, Lang Liu, Dian zeng Jia, Weiyu Pan, Simple synthesis of CuFe 2 o 4 Nanoparticles as gas-sensing materials, Sensors and Actuators B 125 (2007) 144–148; Satoshi Kameoka, Toyokazu Tanabe, An Pang Tsai, Self-assembled porous nano-composite with high ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J35/10H01M4/38H01M4/52C02F1/30
CPCY02E60/12Y02E60/10
Inventor 汪信付永胜熊攀孙敬文朱俊武
Owner NANJING UNIV OF SCI & TECH
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