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Method for preparing ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and application of ion imprinting polymer

An ion imprinting, UV-induced technology, applied in chemical instruments and methods, other chemical processes, etc., to achieve the effect of large adsorption capacity, simple operation and good separation effect

Inactive Publication Date: 2015-09-02
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this patented technology, it describes an improved process that uses light-induced curing techniques with specific chemical compositions to create highly effective materials called ionic imprint plates (IMP). These IMP' s made from certain types of monomers crosslink together through covalently bondings between them or via noncovalent interactions like hydrogen bonds. They exhibit excellent separating properties even when exposed to different environments such as water vapor or air humidity. Additionally, they also provide superior stability over long periods of storage without losing their ability to function properly. Overall, these technical features make ionographic resin products useful tools for various applications where removal of harmful metals plays crucial roles.

Problems solved by technology

Technology discusses two main technical aspects involved in improving the removal of harmful substances during processing of contaminant waters like those generated due to coal combustion residue disposals. These issues require efficient purification techniques to address efficiently and accurately convert contamination sources onto stable products suitable for long periods of storage before being released over populated areas.

Method used

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  • Method for preparing ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and application of ion imprinting polymer
  • Method for preparing ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and application of ion imprinting polymer
  • Method for preparing ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and application of ion imprinting polymer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Preparation of matrix material Silica

[0046] In a one-necked flask, add 2 mL of water, 5 mL of ammonia water (28%), and 30 mL of absolute ethanol, respectively, and stir for 10 min with a sealed magnetic force. Then take 3 mL of TEOS and place in a beaker containing 20 mL of absolute ethanol. After mixing evenly, the mixture was carefully and quickly added to a single-necked flask, and the mixture was sealed and stirred for 24 h at room temperature. After the reaction, it was separated by centrifugation, washed several times with ethanol and water until the solution was neutral, placed in a vacuum drying oven, and dried under vacuum at 50 °C for 24 h for later use.

[0047] (2) Silicon dioxide surface vinyl modification (Silica-APTS-AC)

[0048] Put 0.2 g of Silica prepared in step (1) into a round bottom flask, add 50 mL of 3 mol L -1 hydrochloric acid, refluxed for 24 h, then filtered, washed repeatedly with deionized water twice until neutral, vacuum dried a...

Embodiment 2

[0058] (1) Preparation of matrix material Silica

[0059] In a one-necked flask, add 4 mL of water, 10 mL of ammonia water (28%), and 60 mL of absolute ethanol, respectively, and stir for 10 min with a sealed magnetic force. Then take 6 mL of TEOS and place in a beaker containing 40 mL of absolute ethanol. After mixing evenly, the mixture was carefully and quickly added to a single-necked flask, and the mixture was sealed and stirred for 24 h at room temperature. After the reaction, it was separated by centrifugation, washed several times with ethanol and water until the solution was neutral, placed in a vacuum drying oven, and dried under vacuum at 50 °C for 24 h for later use.

[0060] (2) Silicon dioxide surface vinyl modification (Silica-APTS-AC)

[0061] Put 0.5 g of Silica prepared in step (1) into a round bottom flask, add 50 mL of 3 mol L -1 hydrochloric acid, refluxed for 24 h, then filtered, repeatedly washed with deionized water twice to neutrality, vacuum-dried ...

Embodiment 3

[0071] (1) Preparation of matrix material Silica

[0072] In a one-necked flask, add 6 mL of water, 15 mL of ammonia water (28%), and 90 mL of absolute ethanol, respectively, and stir for 10 min with a sealed magnetic force. Then take 9 mL of TEOS and place in a beaker containing 60 mL of absolute ethanol. After mixing evenly, the mixture was carefully and quickly added to a single-necked flask, and the mixture was sealed and stirred for 24 h at room temperature. After the reaction, it was separated by centrifugation, washed several times with ethanol and water until the solution was neutral, placed in a vacuum drying oven, and dried under vacuum at 50 °C for 24 h for later use.

[0073] (2) Silicon dioxide surface vinyl modification (Silica-APTS-AC)

[0074] Place 0.4 g of Silica prepared in step (1) in a round bottom flask, add 50 mL of 3 mol L -1 hydrochloric acid, refluxed for 24 h, then filtered, washed repeatedly with deionized water twice until neutral, vacuum dried ...

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Abstract

The invention relates to a method for preparing an ion imprinting polymer by virtue of ultraviolet induced polymerization at room temperature and an application of the ion imprinting polymer, and belongs to the field of material preparation and separation technologies and environmental treatment. The ion imprinting polymer can be used as a solid phase extraction adsorbent for selectively and dynamically separating heavy metal ions in wastewater. The method provided by the invention comprises the following steps: introducing vinyl into the surface of a matrix material (Silica) by virtue of a two-step modification method to obtain Silica-APTS-AC at first; and synthesizing a core-shell type ion imprinting polymer adsorbent under ultraviolet irradiation at room temperature by taking the Silica-APTS-AC as a matrix, Co (II) as a template ion and benzophenone (BP) as a photoinitiator. The adsorption property of the adsorbent to Co (II) is investigated, and the adsorbent has a good separation effect in a room temperature environment, has a large adsorption capacity to Co (II), is high in selectivity and significant in separation effect and has more repeated use times. The invention provides a new type of method for selectively separating heavy metal elements (such as Co (II)) in an enrichment environment sample.

Description

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Claims

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Application Information

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Owner JIANGSU UNIV
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