A kind of magnetic adsorption material and preparation method thereof

Abstract

This case involves a magnetic adsorption material and its preparation method. The polymer precursor is prepared by free radical polymerization of fluoromethacrylate monomer and quinoline derivatives with double bonds at the end; starting with 8-hydroxyquinoline Rare earth metal complexes were prepared from raw materials and combined with Fe 3 o 4 The magnetic donor additive is obtained by mixing according to a mass ratio of 1:10; the polymer precursor and the magnetic donor additive are added into a reaction flask, hydrothermally prepared into blended spheres, and then carbonized to obtain a magnetic adsorption material. Through the preparation method of this case, a magnetic activated carbon material with a mesopore content of about 80% can be prepared, the proportion of mesopores is high, and the carbonization yield is greater than 50%, and the adsorption performance is good, and the adsorption capacity of phenol can reach 130 mg / g; the material Uniform size, good fluidity, excellent regeneration performance, can be used alone, but also can be better applied to fluidized bed and other equipment.

Description

technical field [0001] The invention belongs to the technical field of wastewater adsorbent preparation, in particular to a magnetic adsorption material and a preparation method thereof. Background technique [0002] Industrial wastewater contains a large amount of harmful substances, high concentration of organic matter, and dark color, and must be treated before being discharged into rivers. Industrial wastewater treatment methods include redox method, ion exchange method, ultrafiltration membrane method, biological decolorization method, adsorption method and flocculation precipitation method, etc. Among them, the adsorption method is considered to be an efficient and simple method to solve water environmental pollution, and it is the most widely used. [0003] With the rapid development of modern social economy, ordinary activated carbon adsorbents can no longer meet the needs of industry, and magnetic carbon adsorption materials have emerged as the times require. Magn...

AI Technical Summary

Problems solved by technology

Most of the magnetic carbon adsorption materials use commercial activated carbon as the raw material, and combine the magnetic material (precursor) with the activated carbon in a "physical-mechanical" way. Low, poor magnetic durability

During the preparation process, due to the performance of the precursor and metal additives, the number of macropores in the prepared activated carbon is large, which is easy to cause blockage, which in turn leads to a decrease in the adsorption capacity.

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