Preparation method and application of a functionalized magnetic adsorption material

A magnetic adsorption material and functionalization technology, applied in chemical instruments and methods, inorganic chemistry, other chemical processes, etc., can solve problems such as difficult separation and limited application, and achieve large adsorption capacity, high adsorption capacity and selectivity, removal high rate effect
CN113231035BActive Publication Date: 2022-03-22SOUTHWEAT UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEAT UNIV OF SCI & TECH
Publication Date
2022-03-22

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Abstract

The invention discloses a preparation method of a functionalized magnetic adsorption material, which is characterized in that: ethyl 2,5-dihydroxy-1,4-phenylene diphosphonate and / or 2,5-dihydroxyphenylphosphonic acid Add diethyl ester to solvent A, add nano-ferric oxide, react under certain temperature conditions, and obtain the reacted material; cool the reacted material, filter and separate, wash the solid with solvent B, and dry to obtain the functional magnetic adsorption material. The functionalized magnetic adsorption material prepared by the present invention has a porous structure, is formed by sparsely stacking spherical particles, and has abundant functional groups such as hydroxyl groups and phosphorus oxygen groups; the functionalized magnetic adsorption material prepared by the present invention has the advantages of simple synthesis, low cost, It has the advantages of good selectivity, large adsorption capacity, and easy collection after adsorption. It can be actually used for the adsorption, enrichment or removal of uranium in aqueous solution, and has strong practicability.
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Description

technical field

[0001] The invention belongs to the adsorption, enrichment or treatment of radioactive element uranium, and relates to a preparation method and application of a functionalized magnetic adsorption material. The functionalized magnetic adsorption material prepared by the invention (or called the phosphate functionalized nano-iron tetroxide particle adsorption material) is especially suitable for the adsorption, enrichment or removal of radioactive element uranium in aqueous solution. Background technique

[0002] As one of the most important clean energy sources in the 21st century, nuclear energy has the advantages of high energy and higher energy supply stability than hydropower, thermal power, and wind power; less carbon emissions, lower than hydropower and wind power, and longer service life.

[0003] Uranium resources on land in China are actually not abundant, but the storage of uranium element is related to the sustainable development of China's nuclear ...

Claims

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