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Mesoporous zinc ferrite, preparation method thereof, and magnetic carbon nanotube prepared from same

A technology of magnetic carbon nanotubes and mesoporous zinc ferrite, which is applied in separation methods, chemical instruments and methods, iron compounds, etc. problems, to achieve the effect of reducing secondary pollution, good adsorption performance, and efficient recovery performance

Inactive Publication Date: 2012-12-19
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But its disadvantages are: its selection and breeding are more troublesome, the process is greatly affected by environmental factors, and the processing time is relatively long
However, the magnetic iron oxide particles or ZnFe that constitute the above-mentioned magnetic carbon nanotube materials 2 o 4 The particles themselves have poor adsorption performance, which reduces the adsorption performance of magnetic carbon nanotube materials, thus limiting their application in water treatment.

Method used

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  • Mesoporous zinc ferrite, preparation method thereof, and magnetic carbon nanotube prepared from same
  • Mesoporous zinc ferrite, preparation method thereof, and magnetic carbon nanotube prepared from same
  • Mesoporous zinc ferrite, preparation method thereof, and magnetic carbon nanotube prepared from same

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Embodiment 1

[0042] Embodiment 1: mesoporous zinc ferrite (meso-ZnFe 2 O 4 ) preparation

[0043] 2.08 g of Zn(NO 3 ) 2 ·6H 2 O was dissolved in 35 ml of deionized distilled water, and 1.0 g of cetyltrimethylammonium bromide (CTAB) was added, and cetyltrimethylammonium bromide was added, then sonicated for 10-20min, and magnetically stirred for 10- After 20 min, a uniform and clear mixed solution was formed, and 35 ml of 0.4 mol / L Fe(NO 3 ) 3 The solution was stirred under a magnetic stirrer for 30 min, then 6 mol / L NaOH solution was added to adjust the pH value of the mixed solution to 10, and the stirring was continued for 30 min. In a high pressure reactor. Then put it into a vacuum oven and react at 200 °C for 24 h. After the reaction was completed, after natural cooling, the surface liquid was poured out, washed 3 times with deionized water, and then washed 1 time with absolute ethanol. h. The solid was separated by a magnet, washed three times with deionized wa...

Embodiment 2

[0050] Embodiment 2: mesoporous zinc ferrite (meso-ZnFe 2 O 4 ) preparation

[0051] Mesoporous zinc ferrite (meso-ZnFe 2 o 4 ) is prepared using the mesoporous zinc ferrite (meso-ZnFe) described in Example 1 2 o 4 ) of the preparation method, the difference is the use of adding 0.5 g cetyl trimethylammonium bromide. Embodiment prepares gained meso-ZnFe 2 o 4 The particle size is 10-20 nm, the pore size is about 7.8 nm, and the BET area is 132.3 m 2 g -1 .

Embodiment 3

[0052] Embodiment 3: mesoporous zinc ferrite (meso-ZnFe 2 O 4 ) preparation

[0053] Mesoporous zinc ferrite (meso-ZnFe 2 o 4 ) is prepared using the mesoporous zinc ferrite (meso-ZnFe) described in Example 1 2 o 4 ) of the preparation method, the difference is to adopt the addition of 5.0 g cetyltrimethylammonium bromide. Embodiment prepares gained meso-ZnFe 2 o 4 The particle size is 5-10 nm, the pore size is about 6.9 nm, and the BET area is 175.4 m 2 g -1 .

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Abstract

The invention discloses mesoporous zinc ferrite, a preparation method thereof, a method of preparing a magnetic carbon nanotube by using mesoporous zinc ferrite, application of mesoporous zinc ferrite in water treatment and application of the magnetic carbon nanotube in water treatment. According to the invention, the magnetic material mesoporous zinc ferrite is combined with the carbon nanotube; adsorptivity of the carbon nanotube is fully utilized, and meanwhile, the carbon nanotube can be effectively recycled, which enables cost to be reduced and secondary pollution to be decreased.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a method for preparing mesoporous zinc ferrite, a method for preparing magnetic carbon nanotubes using mesoporous zinc ferrite, application of magnetic carbon nanotubes in water treatment, and regeneration of magnetic carbon nanotubes method. Background technique [0002] Due to the long-term persistence, bioaccumulation, semi-volatility and high toxicity of persistent organic pollutants (POPs), they generally have special toxicity such as three-cause (carcinogenic, flaky, mutagenic) or endocrine disrupting properties, And its toxicity threshold is very low, which will cause irreversible and serious harm to human and animal health. Therefore, the removal of persistent organic pollutants in water has always been an urgent problem to be solved in global environmental protection. At present, various environmental media around the world are generally polluted by persistent or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/00B01J20/20B01J20/28B01J20/30B01J20/34C02F1/28
Inventor 何春张琼杨婧羚徐作成朱林飞苏敏华陈卓华廖唯辰
Owner SUN YAT SEN UNIV
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