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Preparation method and applications of anion beta-cyclodextrin magnetic microsphere

A technology of magnetic microspheres and cyclodextrin, which is applied in the direction of microsphere preparation, microcapsule preparation, chemical instruments and methods, etc., can solve the problems of heavy metal ion pollution, achieve the effects of reducing damage, solving pollution problems, and improving environmental conditions

Inactive Publication Date: 2013-11-27
SHANGLUO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to provide a preparation method and application of anionic β-cyclodextrin magnetic microspheres. The β-cyclodextrin magnetic microspheres have good adsorption capacity and can solve the problem of heavy metal ions in the fields of environmental monitoring and sewage treatment. pollution problem

Method used

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  • Preparation method and applications of anion beta-cyclodextrin magnetic microsphere
  • Preparation method and applications of anion beta-cyclodextrin magnetic microsphere

Examples

Experimental program
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Effect test

Embodiment 1

[0040] 1) Fe 3 o 4 Preparation of nanomaterials:

[0041]According to the molar ratio of 1:1 FeCl 2 and Fe 2 (SO 4 ) 3 Add it into a three-necked flask filled with 20ml of water, mix well under electric stirring, and slowly add ammonia water dropwise while stirring at 30°C until the pH value is adjusted to 10 (when adjusting the pH value with ammonia water, in order to prevent the volatilization of ammonia water, in the reaction A condenser is installed on the container), then heated and stirred at 50°C for 2h to form Fe 3 o 4 Granules are matured. After the curing reaction is completed, cool to room temperature, wash and dry to obtain black Fe 3 o 4 nanomaterials;

[0042] 2) Using KH560 to modify Fe 3 o 4 nanomaterials:

[0043] Fe prepared to 0.4g 3 o 4 Add 4mL of ethanol aqueous solution with a volume fraction of 5% to the nanomaterial, raise the temperature to 60°C, add 4g KH560 dropwise at a stirring speed of 800r / min, stir and react for 90min, and then coo...

Embodiment 2

[0047] 1) Fe 3 o 4 Preparation of nanomaterials:

[0048] According to the molar ratio of 1.5:1 FeCl 2 and Fe 2 (SO 4 ) 3 Add it into a three-necked flask filled with 20ml of water, mix well under electric stirring, and slowly add ammonia water dropwise while stirring at 30°C until the pH value is adjusted to 11 (in order to prevent the volatilization of ammonia water when adjusting the pH value with ammonia water, in the reaction A condenser is installed on the container), then heated and stirred at 55°C for 2h to form Fe 3 o 4 Granules are matured. After the curing reaction is completed, cool to room temperature, wash and dry to obtain black Fe 3 o 4 nanomaterials;

[0049] 2) Using KH560 to modify Fe 3 o 4 nanomaterials:

[0050] Fe prepared to 0.5g 3 o 4 Add 4mL of ethanol aqueous solution with a volume fraction of 5% to the nanomaterial, raise the temperature to 60°C, add 7.5g KH560 dropwise at a stirring speed of 800r / min, stir and react for 100min, and the...

Embodiment 3

[0054] 1) Fe 3 o 4 Preparation of nanomaterials:

[0055] According to the molar ratio of 1.2:1 FeCl 2 and Fe 2 (SO 4 ) 3 Add it into a three-necked flask filled with 20ml of water, mix well under electric stirring, and slowly add ammonia water dropwise while stirring at 30°C until the pH value is adjusted to 10.5 (in order to prevent the volatilization of ammonia water when adjusting the pH value with ammonia water, in the reaction A condenser is installed on the container), then heated and stirred at 52°C for 2h to form Fe 3 o 4 Granules are matured. After the curing reaction is completed, cool to room temperature, wash and dry to obtain black Fe 3 o 4 nanomaterials;

[0056] 2) Using KH560 to modify Fe 3 o 4 nanomaterials:

[0057] Fe prepared to 0.45g 3 o 4 Add 4mL of ethanol aqueous solution with a volume fraction of 5% to the nanomaterial, raise the temperature to 65°C, add 5.4g KH560 dropwise at a stirring speed of 800r / min, stir and react for 80min, and t...

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Abstract

The present invention provides a preparation method and applications of an anion beta-cyclodextrin magnetic microsphere. The preparation method comprises: adopting a co-precipitation method to synthesize a Fe3O4 nanometer material under a weakly alkaline condition, adopting KH560 to modify the Fe3O4 nanometer material, dispersing the modified Fe3O4 nanometer magnetic fluid into a gelatinized beta-cyclodextrin, adopting epichlorohydrin as a cross-linking agent, adopting Na3P3O9 as an anionization modifier, adopting Span80 and Tween20 as emulsifiers, adopting kerosene as an oil phase, and adopting a reversed phase emulsion polymerization method to prepare the anion beta-cyclodextrin magnetic microsphere with characteristics of excellent heavy metal contaminant absorption performance, capability of being recovered, and recycling. The anion beta-cyclodextrin magnetic microsphere is mainly used in the fields of environment monitoring, sewage treatments and the like, wherein the pollution problem of heavy metal ions in sewage and other pollution sources can be well solved, effects of emission reduction and environmental protection can be provided, and survival environment conditions of people can be improved.

Description

technical field [0001] The invention belongs to the field of material preparation, and relates to a preparation method of beta-cyclodextrin microspheres, in particular to a preparation method and application of anionic beta-cyclodextrin magnetic microspheres. Background technique [0002] With the rapid development of industry, more and more industrial wastewater containing heavy metal ions has caused serious pollution of water bodies, which has caused great harm to ecological security and human health and survival. Therefore, it is very important to study the transformation and recovery of heavy metal ions in industrial wastewater. [0003] At present, there are mainly the following methods for the treatment of heavy metal ions in wastewater: [0004] (1) The chemical precipitation method is suitable for treating wastewater containing various heavy metal ions. The required equipment is simple, the amount of sediment is small, and the chemical properties are stable, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J13/14B01J20/24B01J20/28B01J20/30C02F1/28C02F1/62C02F1/64
Inventor 石启英王书民刘彦峰李凯斌田勇李仲谨
Owner SHANGLUO UNIV
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