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Surface imprinting functional adsorbing material and preparation method thereof

An adsorption material and surface imprinting technology, applied in chemical instruments and methods, other chemical processes and other directions, can solve problems such as poor adsorption selectivity of attapulgite, and achieve the effects of simple preparation method, low cost and improved adsorption performance

Active Publication Date: 2015-03-04
江苏麦阁吸附剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the prior art, due to the limitations of the structure of the attapulgite itself, the adsorption selectivity of the attapulgite is poor

Method used

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  • Surface imprinting functional adsorbing material and preparation method thereof
  • Surface imprinting functional adsorbing material and preparation method thereof
  • Surface imprinting functional adsorbing material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Put 200-mesh attapulgite powder and toluene in a round-bottomed flask with a solid-to-liquid mass ratio of 1:15, ultrasonically treat it for 60 minutes, and fully homogenize it, then add vinyltriethoxysilane dropwise, which is mixed with The mass ratio of attapulgite is 2:1, react at 80°C for 24 hours; after the reaction, filter, wash with methanol, wash with chloroform, then vacuum dry, grind and sieve to obtain silane coupling agent-modified attapulgite;

[0016] (2) Dissolve 1 g of malachite green and 5 g of acrylamide in 300 mL of distilled water, stir to dissolve, add 20 g of the silane coupling agent modified attapulgite obtained in step (1), and stir vigorously for 30 minutes to make the template molecules, functions The monomer and modified attapulgite are fully mixed; then add 5g of crosslinking agent N'N-methylenebisacrylamide and 0.5g of initiator ammonium persulfate, N 2 Under protection, react at 30°C for 6h, after the reaction, use V 甲醇 :V 乙酸 =9:1 as...

Embodiment 2

[0020] (1) Put 200-mesh attapulgite powder and xylene in a round-bottomed flask at a solid-to-liquid mass ratio of 1:40, ultrasonically treat for 60 minutes, and fully homogenize, then add vinyltrimethoxysilane dropwise, which is mixed with The mass ratio of attapulgite is 5:1, react at 100°C for 12 hours; after the reaction, filter, wash with methanol and chloroform, then vacuum dry, grind and sieve to obtain silane coupling agent modified attapulgite;

[0021] (2) Dissolve 1g of rhodamine B and 10g of methacrylamide in 500mL of distilled water, stir to dissolve, add 60g of the silane coupling agent modified attapulgite obtained in step (1), and stir vigorously for 60min to make the template molecules , functional monomer, modified attapulgite; then add 5g crosslinking agent piperazine diacrylamide and 1g initiator sodium persulfate, N 2 Under protection, react at 60°C for 2h, after the reaction, use V 甲醇 :V 乙酸 =9:1 as the eluent, Soxhlet extraction method to wash away the ...

Embodiment 3

[0025] (1) Put 200-mesh attapulgite powder and toluene in a round-bottomed flask at a solid-to-liquid mass ratio of 1:25, ultrasonically treat for 60 minutes, fully homogenize, and then add vinyl tris(2-methoxyethylene) dropwise Oxygen) silane, its mass ratio to attapulgite is 3:1, react at 90°C for 18h; after the reaction, filter, wash with methanol, wash with chloroform, then vacuum dry, grind and sieve to obtain the modified silane coupling agent attapulgite;

[0026] (2) Dissolve 1 g of malachite green and 8 g of acrylamide in 400 mL of distilled water, stir to dissolve, add 30 g of the silane coupling agent modified attapulgite obtained in step (1), and stir vigorously for 45 minutes to make the template molecules, functions The monomer and modified attapulgite are fully mixed; then add 5g crosslinking agent N'N-methylenebisacrylamide and 0.8g initiator potassium persulfate, N 2 Under protection, react at 45°C for 4h, after the reaction, use V 甲醇 :V 乙酸 =9:1 as the elue...

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Abstract

The invention relates to the field of an adsorbing material, and provides a surface imprinting functional attapulgite adsorbing material. According to the invention, firstly a silane coupling agent is adopted to modify attapulgite, and then template molecules, a functional monomer, a cross-linking agent, an initiator and modified attapulgite powder are uniformly mixed in distilled water and reacted under a nitrogen atmosphere, so as to produce the surface imprinting functional attapulgite adsorbing material. The prepared adsorbing material has good adsorptive property and adsorptive selectivity to the template molecules. The preparation method is simple and environmentally friendly, and the cost is low.

Description

technical field [0001] The invention relates to a surface imprinted functionalized adsorption material and a preparation method thereof, in particular to a preparation method of an attapulgite surface molecular imprinted adsorption material. Background technique [0002] Attapulgite, also known as palygorskite, is a porous chain-layered hydrous magnesium-aluminum silicate clay mineral. Its skeleton structure is three-dimensional. The zeolite channels and pores run through the entire structure. It is a porous mineral. There are a large number of zeolite channels in the crystal structure, and the zeolite channels in the crystal have the same size, so that it has the role of molecular sieve and can be used in various industries. Adsorption of waste water. Due to the limitation of the structure of attapulgite itself, the adsorption selectivity of attapulgite is poor. [0003] Molecular imprinting technology is an experimental technique for synthesizing high molecular polymers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30
Inventor 万怀新彭勇刚纪俊玲汪媛
Owner 江苏麦阁吸附剂有限公司
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