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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 high feasibility

Active Publication Date: 2013-08-07
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 recrystallization, 100.0 g of β-CD was weighed and dissolved in 220 g of 16% NaOH solution to obtain a clear slightly yellow solution. At 30° C., 41.0 g of EPI was added dropwise, and after reacting for 1 hour, 44.0 g of 40% NaOH solution was added. At 50°C, add 300ml containing 6.0g dispersant (m span80 :m tween20 =3:1) n-decane solution, after stirring evenly, 80.0 g of EPI was added, and the temperature was raised to 60° C. for 3 h. After the reaction is completed, let it stand for cooling, pour off the supernatant, wash with methanol and deionized water to neutrality, dry in a constant temperature blast drying oven at 70°C, and grind to obtain β-cyclodextrin polymer .

[0023] Weigh 5.0g of β-cyclodextrin high molecular weight polymer in the Erlenmeyer flask, add 100ml of 0.1mol / L KMnO 4 solution, magnetically stirred to disperse, impregnated for 1 h, allowed to stand, filtered, and fully washed with deionized water until the filtrate was clear and neutral...

Embodiment 2

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

[0026] Weigh 5.0g of γ-cyclodextrin high molecular weight polymer in a conical flask, add 100ml of 0.1mol / L KMnO 4 solution, magnetically stirred to disperse, impregnated for 1 h, allowed to stand, filtered, and fully washed with deionized water until the filtrate was clear and neutral, washed with H 2 o 2 Check for no air bubbles. Dry it in...

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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, in particular to a preparation method and application of a Mn element-doped cyclodextrin polymer material. Background technique [0002] The prevention and control of water pollution has always attracted much attention. In recent years, the types of water pollutants have been increasing, showing the typical characteristics of "composite pollution". Some pollutants, such as amide herbicides such as butachlor, and phenylpyrazole insecticides such as fipronil, are at low levels and are toxic. They are relatively stable in the environment and have potential carcinogenicity, directly threatening human health and Biosafety. Due to the low concentration of such pollutants, the treatment effect of conventional water treatment technology is weak. Adsorption technology i...

Claims

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Application Information

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