Amino magnetic nanoparticles immobilized on the surface of metal copper ions and its preparation method and application

A magnetic nanoparticle, surface immobilization technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of secondary pollution limitation, difficult to remove algal toxins, low efficiency, etc., to avoid secondary pollution, good practical value And the application prospect, the method is simple, practical and effective
CN101108333BInactive Publication Date: 2012-02-22FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUDAN UNIV
Publication Date
2012-02-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of inorganic materials and environmental treatment, in particular to a magnetic nanometer material with metal copper ions fixed on the surface, a preparation method and application thereof. The magnetic nano material is obtained by first synthesizing the magnetic nano material with amino groups on the surface, then chemically modifying the surface with adipoyl chloride and iminodiacetic acid, and then immobilizing metal copper ions. The magnetic nanoparticle immobilizing metal copper ions is used as a microadsorbent, has a large specific surface area, and can effectively remove microcystins (Microcystins, referred to as algal toxins) with a polypeptide structure in the environment, and the method is simple and effective. The removal efficiency of the invention for MC-LR, which has the highest content and the strongest toxicity in the microcystin family, can reach 100%, and the removal efficiency for MC-RR can reach 90.2%. The material has good practical value and application prospect in the fields of environmental governance and the like.
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Description

technical field

[0001] The invention belongs to the field of inorganic material synthesis and environmental technology, and specifically relates to a superparamagnetic amino-magnetic nanoparticle with superparamagnetic surface immobilized metal copper ions, a preparation method and application thereof. Background technique

[0002] In recent years, the explosive reproduction of toxic cyanobacteria caused by eutrophication of water bodies has become a serious environmental pollution problem. As the most common type of hepatotoxin produced by freshwater cyanobacteria, microcystin is a cyclic seven-membered polypeptide compound with a branched chain of conjugated double bonds, and drinking water intake can strongly cause body poisoning. The types of microcystins are distinguished by the different amino acid groups at positions 2 and 4 in the cyclic polypeptide structure. The most common groups of Microcystin-LR (MC-LR) toxins are leucine and arginine respectively. acid. The t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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