Preparation method for triglycine functionalized mesoporous material surface imprinting adsorbent

A technology of triglycine and mesoporous materials, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of non-selectivity and achieve the effects of reducing non-specific adsorption, remarkable separation effect and high mechanical strength

Inactive Publication Date: 2013-12-11
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Studies have shown that amino acids can easily coordinate with metal ions through their terminal amino groups,

Method used

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  • Preparation method for triglycine functionalized mesoporous material surface imprinting adsorbent
  • Preparation method for triglycine functionalized mesoporous material surface imprinting adsorbent
  • Preparation method for triglycine functionalized mesoporous material surface imprinting adsorbent

Examples

Experimental program
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Embodiment 1

[0024] (1) Synthesis of SBA-15

[0025] Weigh 4.0 g of polyethylene oxide-polypropylene oxide-polyethylene oxide (P123) and dissolve it in 60 mL of water at 35 o Stir at C until completely dissolved, continue to add 120 mL of 2 mol·L -1 HCl, stirred to obtain a homogeneous solution, added 3.98 g of 1,3,5-trimethylbenzene (TMB), continued to stir for 45 min, added 4.272 g of tetraethyl orthosilicate (TEOS) dropwise, 35 oAfter stirring for 20 h at ℃, put it into the reactor and age it for 24 h, and wash the white precipitate with a large amount of deionized water, o C drying in a vacuum drying oven; put the dried white powder into a muffle furnace for 1 o C / min program temperature rise to 550 o C and kept for 4 h to remove surfactant P123 to prepare hexagonal mesoporous SBA-15, such as figure 2 as shown in a;

[0026] (2) Surface modification of SBA-15

[0027] 2.0 g of SBA-15 was dissolved in 15 mL of aqueous solution containing 10% (v / v) APES, and stirred at 50°C f...

Embodiment 2

[0035] (1) Synthesis of SBA-15

[0036] Weigh 8.0 g of polyethylene oxide-polypropylene oxide-polyethylene oxide (P123) and dissolve it in 60 mL of water at 35 o Stir at C until completely dissolved, continue to add 480 mL 2 mol·L -1 HCl, stirred to obtain a homogeneous solution, then added 15.92 g of 1,3,5-trimethylbenzene (TMB), continued to stir for 45 min, added 17.08 g of 0.164 mol tetraethyl orthosilicate (TEOS) dropwise, 35 o After stirring for 20 h at ℃, put it into the reactor and age it for 24 h, and wash the white precipitate with a large amount of deionized water, o C drying in a vacuum drying oven; put the dried white powder into a muffle furnace for 1 o C / min program temperature rise to 550 o C and kept for 4 h to remove surfactant P123 to obtain hexagonal mesoporous SBA-15;

[0037] (2) Surface modification of SBA-15

[0038] 2.0 g of SBA-15 was dissolved in 30 mL of aqueous solution containing 10% (v / v) APES, and stirred at 50°C for 1 h. After silani...

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Abstract

The invention relates to a preparation method for a triglycine functionalized mesoporous material surface imprinting adsorbent, belonging to the technical field of preparation of environment function materials. Particularly, the synthesized mesoporous silicon base material SBA-15 is taken as the matrix, the surface of the matrix is functionalized by the triglycine, and Co (II) is chosen as a template ion to prepare a novel Co (II) surface imprinting absorbent. Static adsorption experiments are for research of performances of adsorption equilibrium, dynamics and selective recognition of the prepared imprinting absorbent, and the results show that the Co (II) imprinting absorbent prepared by the method has a rapid adsorption kinetics property and an excellent Co (II) recognition performance.

Description

technical field [0001] The invention relates to a preparation method of triglycine functionalized mesoporous material surface imprinted adsorbent, which belongs to the technical field of preparation of environmental functional materials. Background technique [0002] Molecular imprinting is a technology for preparing three-dimensional cross-linked polymers with predetermined recognition function binding sites. The technical principle is to combine structurally complementary functional monomers with template molecules through covalent or non-covalent bonds, and add cross-linking agents The polymerization reaction is carried out, and the template molecules are eluted after the reaction is completed to form molecularly imprinted polymers (MIPs) with special structures and specific adsorption for template molecules. If the template molecules are replaced with metal ions, it can be called ion imprinting technology. The surface ion imprinting technology solves some serious defects...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/30
Inventor 刘燕陈瑞孟敏佳孟祥国胡兆勇刘方方
Owner JIANGSU UNIV
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