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A kind of preparation method of magnetic ion exchange resin motor and its product and application

A technology of ion exchange resin and exchange resin, which is applied in the direction of ion exchange, ion exchange treatment device, ion exchanger modification/post-treatment, etc., which can solve the problem that microplastics are greatly affected, microplastics are unusable, and there is no reasonable and effective treatment method To achieve the effect of improving the adsorption efficiency, the method is economical and environmentally friendly, and has a good application prospect

Active Publication Date: 2022-01-21
JINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The processed plastics are all macroscopically visible. These methods are not available for dealing with microplastics. However, the impact of microplastics on human society is increasing. It has attracted the attention of countries all over the world. At present, there is still no reasonable and effective treatment method.

Method used

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  • A kind of preparation method of magnetic ion exchange resin motor and its product and application
  • A kind of preparation method of magnetic ion exchange resin motor and its product and application
  • A kind of preparation method of magnetic ion exchange resin motor and its product and application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Magnetic Fe 3 o 4 Preparation of nanoparticles: weigh 1.622g FeCl 3 ·6H 2 0 and 1.39g FeSO 4 ·7H 2 O was dissolved in 40mL of water respectively, then mixed in the flask, ultrasonically mixed evenly, then added 5mL of 28% ammonia solution to the mixed solution, heated to 90°C, then added 4.4g of sodium citrate into the flask, stirred for 30min, Magnetic recovery of Fe after the reaction 3 o 4 nanoparticles, washed with ethanol, and then dried to obtain magnetic Fe 3 o 4 nanoparticles.

Embodiment 2

[0041] Modification of glass Petri dishes:

[0042] (1) First, ultrasonically clean the glass petri dish with acetone, ethanol and deionized water for 20 min respectively;

[0043] (2) Soak the glass culture dish cleaned in step (1) with a mixed solution of concentrated sulfuric acid and hydrogen peroxide of 3:1 (volume ratio) for 30 minutes;

[0044] (3) Take out the glass petri dish after soaking treatment in step (2), and immerse it in two polyelectrolytes, ammonium dienide and sodium polystyrene sulfonate in turn for modification: first soak in dienide containing 2mg / mL Ammonium and 0.5mol / L sodium chloride mixed solution for 5min, then washed with deionized water for 1min, then soaked in a mixed solution containing 3mg / mL polystyrene sodium sulfonate and 0.5mol / L sodium chloride for 5min, Then wash with deionized water for 1 min, and repeat 25 times.

[0045] If the last modification ends with ammonium dienide, the glass Petri dish is modified positively; if the last mo...

Embodiment 3

[0047] The preparation of magnetic ion exchange resin motor comprises the following steps:

[0048] Weigh 10mg Fe 3 o 4 Nanoparticles were dispersed in 30mL water and ultrasonically dispersed for 30min to make the magnetic Fe 3 o 4 The nanoparticles are uniformly dispersed, and then 500 mg of ion exchange resin is added to the above dispersion liquid and stirred for 5 min to make the Fe 3 o 4 The nanoparticles are evenly adsorbed on the surface of the ion exchange resin, and after drying, the magnetic ion exchange resin motor is obtained.

[0049] The microscopic morphology of the obtained magnetic ion exchange resin motor was observed, such as figure 1 shown by figure 1 It can be seen that the surface of the ion exchange resin is adsorbed with magnetic Fe by adsorption modification. 3 o 4 nanoparticles, and the added magnetic Fe 3 o 4 The nanoparticles are completely adsorbed to the resin surface.

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Abstract

The invention discloses a preparation method of a magnetic ion exchange resin motor and its products and applications. The preparation method includes the following steps: performing magnetic modification on the ion exchange resin to obtain the magnetic ion exchange resin motor; the magnetic modification is Magnetic nanoparticle adsorption modification or metal coating modification; when the magnetic ion exchange resin motor prepared by the present invention is dispersed in the microplastic dispersion, spontaneous movement will occur due to asymmetric adsorption, and it has good adsorption for microplastics in water Effect; by magnetically modifying the ion exchange resin, the ion exchange resin motor can be magnetically recovered conveniently; after the adsorption capacity of microplastics reaches saturation, adding salt solution to the magnetic ion exchange resin motor after magnetic control collection can make the The microplastics are shed, redispersed, and the ion exchange resin motors can be recycled.

Description

technical field [0001] The invention belongs to the technical field of microplastic treatment, and in particular relates to a preparation method of a magnetic ion exchange resin motor and its product and application. Background technique [0002] Since 2004, Thompson and others from the University of Plymouth in the United Kingdom published a paper on plastic debris in marine water and sediments in the journal Science, and first proposed the concept of "microplastics", microplastics began to receive widespread attention from the world. . The harm of microplastics is mainly reflected in its small particle size, which is generally at the micronano level, which is why it is more harmful to the environment than other general non-degradable plastics. The sources of microplastics are very extensive. Various plastics that exist in daily life, such as polystyrene, polyvinyl chloride, nylon, etc., cannot be completely degraded in the natural environment, but are weathered into plast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J47/016B01J47/014B01J20/28C02F1/28C02F1/48
CPCB01J47/016B01J47/014B01J20/28009C02F1/28C02F1/48
Inventor 王吉壮李万元李丹
Owner JINAN UNIVERSITY