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Preparation method of Mn element-doped cyclodextrin polymer material with adsorptive separation function and application thereof

A cyclodextrin polymer, element doping technology, applied in chemical instruments and methods, adsorption water/sewage treatment, other chemical processes, etc., can solve the problems of difficult separation and reuse, poor mechanical properties, etc. The effect of regeneration and reuse, good mechanical properties, and simple preparation method

Active Publication Date: 2012-07-04
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material prepared by this method is a polymer hydrogel, which has poor mechanical properties and is not easy to separate and reuse.

Method used

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  • Preparation method of Mn element-doped cyclodextrin polymer material with adsorptive separation function and application thereof
  • Preparation method of Mn element-doped cyclodextrin polymer material with adsorptive separation function and application thereof
  • Preparation method of Mn element-doped cyclodextrin polymer material with adsorptive separation function and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] After weighing and recrystallizing, 100.0 g β-CD was dissolved in 220 g 16% NaOH solution to obtain a clear and slightly yellow solution. EPI 41.0g was added dropwise at 30°C, and after reacting for 1 hour, 44.0g of 40% NaOH solution was added. At 50℃, add 300ml containing 6.0g dispersant (m span80 : M tween20 =3:1) n-decane solution, after stirring evenly, add 80.0g of EPI, and react at 60°C for 3h. After the reaction is over, let stand to cool, pour off the supernatant, wash with methanol and deionized water to neutrality, dry in a constant temperature blast drying oven at 70℃, and grind to obtain β-cyclodextrin polymer .

[0023] Weigh 5.0g β-cyclodextrin high molecular polymer into an Erlenmeyer flask, add 100ml 0.1mol / L KMnO 4 Disperse the solution with magnetic stirring, immerse it for 1h, let it stand, filter, and wash thoroughly with deionized water until the filtrate is clear and neutral. Use H 2 O 2 No air bubbles are detected. It is dried in a constant temp...

Embodiment 2

[0025] Weigh 114.3g of γ-CD and dissolve it in 220.0g of 16% NaOH solution to obtain a clear and slightly yellow solution. EPI 80.0g was added dropwise at 30°C, after 1.5h reaction, 44.0g 40% NaOH solution was added. Add 300ml containing 4.0g dispersing agent (m span80 : M tween20 =3:1) n-decane solution, after stirring evenly, add 41.0g of EPI, and react at 60°C for 3.5h. After the reaction is over, let stand to cool, pour off the supernatant, wash with methanol and deionized water until it is neutral, dry in a constant temperature blast drying oven at 70℃, and grind to obtain γ-cyclodextrin polymer .

[0026] Weigh 5.0g γ-cyclodextrin high molecular polymer into an Erlenmeyer flask, add 100ml 0.1mol / L KMnO 4 Disperse the solution with magnetic stirring, immerse it for 1h, let it stand, filter, and wash thoroughly with deionized water until the filtrate is clear and neutral. Use H 2 O 2 No air bubbles are detected. It is dried in a constant temperature blast drying oven at ...

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Abstract

The invention relates to a preparation method of a Mn element-doped cyclodextrin polymer material with an adsorptive separation function and application thereof. The Mn element-doped cyclodextrin polymer material takes cyclodextrin macromolecular polymer as the main body, and is prepared by simple and practicable inverse emulsion polymerization and KMnO4 solution dipping treatment. The cyclodextrin polymer material is characterized by relatively good spherical appearance, good mechanical strength and water setteability and dispersity, can fill the glass column and is easy to separate and regenerate for use. Meanwhile, the material can effectively adsorb and separate pesticide composite in water. The preparation method of the material is simple and low in cost, and thus has high application values and broad application prospect.

Description

Technical field [0001] The invention belongs to the technical field of water pollution control, and relates to a preparation method of a novel cyclodextrin polymer material with adsorption and separation functions, and in particular to a preparation method and application of a cyclodextrin polymer material doped with Mn elements. Background technique [0002] The prevention and control of water pollution has always attracted much attention. In recent years, the types of pollutants in water bodies have been increasing, showing typical characteristics of "complex pollution". Some pollutants such as butachlor and other amide herbicides, fipronil and other phenylpyrazole insecticides are low-level and toxic, relatively stable in the environment, and potentially carcinogenic, directly threatening human health and Biological safety. Due to the low concentration of such pollutants, the treatment effect of conventional water treatment technology is weak. Adsorption technology is the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28
Inventor 蔡喜运夏春龙穆兰赵菁虹陈景文
Owner DALIAN UNIV OF TECH
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