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Composite adsorbent with interlayer nanostructure as well as preparation method and application of composite adsorbent

A nanostructure composite, adsorbent technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, alkali metal compounds, etc., can solve the problem that adsorbents cannot remove dyes, etc., to prevent agglomeration, facilitate penetration, and improve adsorption. sexual effect

Pending Publication Date: 2021-08-24
武汉钜能科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a sandwich nanostructure composite adsorbent and its preparation method and application, to solve the technical problem that traditional adsorbents cannot remove dyes from water in a wide pH range

Method used

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  • Composite adsorbent with interlayer nanostructure as well as preparation method and application of composite adsorbent
  • Composite adsorbent with interlayer nanostructure as well as preparation method and application of composite adsorbent

Examples

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Effect test

Embodiment 1

[0028] A preparation method of sandwich nanostructure composite adsorbent, comprising the steps of:

[0029] (1) Add 10 g of spherical zinc oxide particles with a diameter of 40 nm and 0.5 g of 1,3,5-triphenylbenzene to 350 g of chloroform solvent, ultrasonically disperse for 1 h, and then remove the solvent under reduced pressure to obtain zinc oxide and 1 , a mixed solution of 3,5-triphenylbenzene;

[0030] (2) Add 1g of aluminum chloride to 180g of the mixed solution prepared in step (1), under an argon atmosphere, add 290g of chloroform to the above solution, and carry out polycondensation reaction at 58°C for 40h, and the reaction ends After cooling to room temperature, the crude product was collected by filtration, and the crude product was washed with ethanol and methanol successively to obtain core-shell porous organic polymer microspheres;

[0031] (3) Add 100 g of the core-shell porous organic polymer prepared in step (2) to 150 g, 2.9 mol / L aqueous hydrochloric aci...

Embodiment 2

[0035] A preparation method of sandwich nanostructure composite adsorbent, comprising the steps of:

[0036] (1) Add 10 g of spherical zinc oxide particles with a diameter of 42 nm and 0.5 g of 1,3,5-triphenylbenzene in 360 g of chloroform solvent, ultrasonically disperse for 1.2 h, then remove the solvent under reduced pressure to obtain zinc oxide and Mixed solution of 1,3,5-triphenylbenzene;

[0037] (2) Add 1g of aluminum chloride to 182g of the mixed solution prepared in step (1), under an argon atmosphere, add 295g of chloroform to the above solution, and carry out polycondensation reaction at 60°C for 42h, and the reaction ends After cooling to room temperature, the crude product was collected by filtration, and the crude product was washed with ethanol and methanol successively to obtain core-shell porous organic polymer microspheres;

[0038](3) Add 100 g of the core-shell porous organic polymer prepared in step (2) to 152 g of 2.92 mol / L hydrochloric acid aqueous so...

Embodiment 3

[0042] A preparation method of sandwich nanostructure composite adsorbent, comprising the steps of:

[0043] (1) Add 10 g of spherical zinc oxide particles with a diameter of 44 nm and 0.54 g of 1,3,5-triphenylbenzene in 370 g of chloroform solvent, ultrasonically disperse for 1.3 h, then remove the solvent under reduced pressure to obtain zinc oxide and Mixed solution of 1,3,5-triphenylbenzene;

[0044] (2) Add 1g of aluminum chloride to 186g of the mixed solution prepared in step (1), under an argon atmosphere, add 296g of chloroform to the above solution, and carry out polycondensation reaction at 60°C for 43h, and the reaction ends After cooling to room temperature, the crude product was collected by filtration, and the crude product was washed with ethanol and methanol successively to obtain core-shell porous organic polymer microspheres;

[0045] (3) Add 100 g of the core-shell porous organic polymer prepared in step (2) to 154 g, 2.94 mol / L aqueous hydrochloric acid, s...

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Abstract

The invention discloses a composite adsorbent with an interlayer nanostructure and a preparation method and application of the composite adsorbent. The preparation method comprises the two steps of preparation of hollow porous organic polymer microspheres and preparation of the composite adsorbent with the interlayer nanostructure. Graphene oxide and the hollow porous organic polymer microspheres provided by the invention have low oxygen-containing functional groups; adsorption of organic pollutants with benzene rings is facilitated through pi-pi interaction; the hollow porous organic polymer microspheres have a unique hydrophobic hollow structure and a large number of benzene rings, and can adsorb the organic pollutants with the benzene rings through the pi-pi interaction, the organic pollutants are stored in internal cavities; moreover, the hollow porous organic polymer microspheres have no relationship with the pH value of a solution, the adsorption performance of the hollow porous organic polymer microspheres is always kept consistent; and in addition, the hollow porous organic polymer microspheres are inserted between layers of graphene, irreversible agglomeration of graphene can be prevented, formation of a three-dimensional open structure is facilitated, permeation of a dye is facilitated, and the adsorption performance of the composite material is greatly improved.

Description

technical field [0001] The invention relates to the technical field of dye adsorbents, in particular to a sandwich nanostructured composite adsorbent and its preparation method and application. Background technique [0002] Dyes are divided into natural dyes and synthetic dyes according to their sources. Among them, synthetic dyes have the advantages of high yield, various types, bright color, washability and light resistance, and are widely used in real life. Dyes are a class of organic compounds that can make fibers and other colored substances obtain firm colors, and are typical fine chemical products. Printing and dyeing, papermaking, and textile industries consume a large amount of dyes every year. The discharged wastewater contains high concentrations of organic matter, complex components, many refractory substances, and the degradation products are toxic and harmful, which is harmful to the environment. The pollution of dye wastewater not only affects the living envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30C02F1/28C02F101/34
CPCB01J20/265B01J20/28042C02F1/285C02F2101/34
Inventor 任嵬李鹏龙杰吴苏州
Owner 武汉钜能科技有限责任公司
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