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Modified beta-cyclodextrin polymer, preparation method and application thereof in dye adsorption

A cyclodextrin polymer and cyclodextrin technology, applied in the field of environmental chemistry, can solve the problems of low adsorption capacity, difficult regeneration, and long adsorption time, and achieve high adsorption capacity, improved adsorption performance, and simple preparation methods

Pending Publication Date: 2021-04-27
QILU UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the purpose of the present invention is to provide modified β-cyclodextrin polymers and their preparation methods and applications in dye adsorption, using the modified β-cyclodextrin polymers provided by the invention as adsorption The material can overcome the problems of low adsorption capacity, long adsorption time and difficult regeneration of traditional adsorption materials

Method used

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  • Modified beta-cyclodextrin polymer, preparation method and application thereof in dye adsorption
  • Modified beta-cyclodextrin polymer, preparation method and application thereof in dye adsorption
  • Modified beta-cyclodextrin polymer, preparation method and application thereof in dye adsorption

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Embodiment 1

[0045] Mix and dissolve 0.1g of β-cyclodextrin and 0.2g of hexachlorocyclotriphosphazene in 10mL of N,N-dimethylformamide, add 0.15g of potassium carbonate, put it in a 25mL polytetrafluoroethylene reactor, 120°C Constant temperature solvothermal reaction for 24 hours, the reaction is completed, cooling, centrifugation, washing, drying to obtain a light yellow solid.

Embodiment 2

[0047] Mix and dissolve 0.2g of β-cyclodextrin and 0.4g of hexachlorocyclotriphosphazene in 25mL of N,N-dimethylformamide, add 0.2g of potassium carbonate, and place in a 50mL polytetrafluoroethylene reaction kettle at 120°C Constant temperature solvothermal reaction for 48 hours, the reaction was completed, cooled, centrifuged, washed and dried to obtain a black solid.

Embodiment 3

[0049]Mix and dissolve 0.2g of β-cyclodextrin and 0.6g of hexachlorocyclotriphosphazene in 40mL of N,N-dimethylformamide, add 0.3g of potassium carbonate, place in a 100mL round-bottomed flask, reflux at 120°C After 48 hours of reaction, the reaction was completed, cooled, centrifuged, washed, and dried to obtain a light yellow solid.

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Abstract

The invention discloses a modified beta-cyclodextrin polymer as well as a preparation method and application thereof in dye adsorption. The preparation method comprises the following steps: carrying out heating reaction on beta-cyclodextrin and a cyclotriphosphazene derivative, and adding an acid-binding agent into the heating reaction system, wherein the cyclotriphosphazene derivative is hexachlorocyclotriphosphazene, hexafluorocyclotriphosphazene, ethoxy(pentafluoro)cyclotriphosphazene or pentafluoro(phenoxy)cyclotriphosphazene. The modified beta-cyclodextrin polymer provided by the invention can be used as an adsorption material to overcome the problems of low adsorption capacity, long adsorption time and difficult regeneration of traditional adsorption materials.

Description

technical field [0001] The invention belongs to the field of environmental chemistry and relates to a modified β-cyclodextrin polymer, a preparation method and an application in dye adsorption. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Dyes are a class of substances that can color fibers and are widely used in the production process of textiles, leather, food, rubber, paint, etc. During the production and use of dyes, in addition to the normal use of water for processing, 12% is discharged in the form of waste water. Dye wastewater usually has the characteristics of complex composition, high chroma and difficult to degrade. If it is not treated after discharge, it ...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/30
CPCB01J20/24C02F1/286C02F2101/308
Inventor 杨升宏赵汝松刘小洋王鑫胡金双
Owner QILU UNIV OF TECH
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