Ferroferric oxide magnetic nanometer particles decorated with tetraazacalix [2] arene [2] triazine as well as preparation method and application thereof

A technology of magnetic nanoparticles and ferroferric oxide, which is applied in ferrous oxide, iron oxide/iron hydroxide, nanotechnology for materials and surface science, etc., can solve agglomeration, particle size increase, Particle agglomeration and other problems, to achieve the effect of low cost, simple separation and large surface area

Active Publication Date: 2013-07-03
ZHENGZHOU UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, magnetic nanomaterials are prone to particle aggregation and aggl

Method used

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  • Ferroferric oxide magnetic nanometer particles decorated with tetraazacalix [2] arene [2] triazine as well as preparation method and application thereof
  • Ferroferric oxide magnetic nanometer particles decorated with tetraazacalix [2] arene [2] triazine as well as preparation method and application thereof
  • Ferroferric oxide magnetic nanometer particles decorated with tetraazacalix [2] arene [2] triazine as well as preparation method and application thereof

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Experimental program
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Effect test

Example

[0030] Example 1. The magnetic nanoparticles prepared by the present invention are used as the dispersing and extracting material, and the extraction liquid is a 100mL aqueous solution containing 100ng each of phenanthrene, anthracene, pyrene, benzene, and benzene. Ten minutes, after standing for one hour, use a magnet to collect the magnetic material, and pour the upper clear and transparent water solution; then add 100 mL of acetonitrile solution, ultrasonically disperse, and let stand for one hour. Use a magnet to collect the magnetic material, and combine the original solution with The solution extracted by the magnetic material was measured by high performance liquid chromatography, and the recovery rate of various polycyclic aromatic hydrocarbons reached more than 90%.

Example

[0031] Example 2. The magnetic nanoparticles prepared by the present invention are used as the dispersion extraction material, and the extraction liquid is inorganic cation Cu 2+ , Cd 2+ , Pb 2+ , Co 2+ Each 50ng of 100mL aqueous solution, put 0.1g of magnetic nanoparticles into it, ultrasonically disperse for 30 minutes, after standing for one hour, collect the magnetic material with a magnet, and pour out the upper clear and transparent water; then 100mL of 0.5mol / Add L hydrochloric acid solution, disperse ultrasonically, and let it stand for one hour. Collect the magnetic material with a magnet. The original solution and the solution extracted from the magnetic material are tested with an atomic absorption spectrophotometer. The recovery rate of various inorganic cations is all Achieve more than 90%.

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Abstract

The invention discloses ferroferric oxide magnetic nanometer particles decorated with tetraazacalix [2] arene [2] triazine. A preparation method of the ferroferric oxide magnetic nanometer particles comprises the following steps of: firstly, covering a silicon shell by using the ferroferric oxide magnetic nanometer particles; decorating with amino to obtain amino-modified ferroferric oxide magnetic nanometer particles; and reacting the ferroferric oxide magnetic nanometer particles with the tetraazacalix [2] arene [2] triazine at 110 DEG C under a nitrogen condition to prepare the ferroferric oxide magnetic nanometer particles decorated with tetraazacalix [2] arene [2] triazine. The ferroferric oxide magnetic nanometer particles integrate the advantages of large superficial area of the original and easiness of separation of the original ferroferric oxide magnetic nanometer particles, and also have a new function characteristic, so that the extraction selectivity of a characteristic target is enhanced; and the ferroferric oxide magnetic nanometer particles are used for extracting and separating, and have the advantages of easiness and convenience in operation, and capability of extracting, enriching and separating organic matters and inorganic cations. And moreover, the ferroferric oxide magnetic nanometer particles can be totally separated from a base solution under an external magnetic field function, so that the ferroferric oxide magnetic nanometer particles are economic, environment-friendly and high in recovery rate and have a good popularization and application prospect.

Description

technical field [0001] The present invention relates to magnetic nanoparticles, in particular to ferric iron tetroxide magnetic nanoparticles modified by tetraazacalix [2] arene [2] triazine, the present invention also relates to the preparation method of the magnetic nanoparticles and the magnetic nano application of particles. Background technique [0002] Magnetic nanomaterials have become a research hotspot in the fields of physics, chemistry, chemical industry, biology, and medicine. However, magnetic nanomaterials are prone to particle aggregation and agglomeration, forming secondary particles and increasing the particle size. In order to overcome the above obstacles and make it more widely used, it is necessary to modify the magnetic nanomaterials to improve their dispersion and application value. [0003] In recent years, a large number of researchers at home and abroad have devoted themselves to the surface modification of magnetic nanoparticles. Through surface m...

Claims

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Application Information

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IPC IPC(8): H01F1/11C01G49/08B82Y30/00
Inventor 张书胜赵文杰蒋琼孟蕾李海斌郭亚肖
Owner ZHENGZHOU UNIV
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