A kind of magnetic polymer nano adsorption material lm-mp and its preparation method and application

A nano-adsorption material, LM-MP technology, applied in alkali metal compounds, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of difficult recovery, small adsorption capacity, difficult regeneration, etc., and achieve easy modification and easy Modification, not easy to secondary pollution effect
CN110975841BActive Publication Date: 2021-12-31SHANXI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANXI UNIV
Publication Date
2021-12-31

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Abstract

The invention provides a magnetic polymer nanometer adsorption material LM‑MP and its preparation method and application. The adsorption material can efficiently adsorb cationic dye pollutants, and the synthesis method of the adsorption material is simple and low in cost. LM-MP was characterized by scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, thermogravimetry, Zeta potential and other methods, and it was confirmed that Fe was grafted into the linear maltodextrin-pyromellitic dianhydride crosslinked polymer. 3 o 4 Magnetic nanoparticles, and have good magnetic properties. The adsorption material has large specific surface area, abundant hydroxyl and carboxyl groups and excellent superparamagnetic properties, and can be used as an adsorption material for cationic dye pollutants in aqueous solution. Using methyl green, malachite green, methyl violet, and ethyl violet dyes as model molecules to study the adsorption performance, it shows that the material can efficiently adsorb cationic organic dyes, and can be recycled without reducing the adsorption efficiency. It has application prospects in the aspect of environmental pollutant adsorption materials.
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Description

technical field

[0001] The invention belongs to magnetic nanometer adsorption material and water treatment technology, in particular to a magnetic polymer nanometer adsorption material and its preparation method and application. Background technique

[0002] Cationic organic dyes are widely used in textile, paper, printing, food and pharmaceutical industries, and most cationic organic dyes are easily soluble in water, so removing cationic organic dyes before industrial wastewater discharge has become a topic of great concern. So far, the methods for removing cationic organic dyes in wastewater mainly include photodegradation, biodegradation and adsorption. Among them, the cost of adsorption is low, the removal efficiency is high, and some adsorption materials can be reused, so adsorption separation is the most effective way to remove organic dyes. a method of Commonly used adsorption materials include activated carbon and zeolite, etc. However, these materials have defects ...

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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