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Method for preparing organic-inorganic compound mesoporous film and application thereof

A composite mesoporous membrane and inorganic technology, applied in the field of membrane materials, can solve the problems of low temperature resistance, long time-consuming, slow speed, etc., and achieve the effect of maintaining integrity, fast synthesis speed, and short time-consuming

Inactive Publication Date: 2010-08-25
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of this hydrothermal synthesis method are: slow rate, long time consumption, high energy consumption and low efficiency (it takes more than four days to prepare a composite mesoporous membrane), especially for the removal of the composite mesoporous membrane. The surfactant releases the mesoporous channels, and the product has been calcined at high temperature. However, during the high temperature calcining process, due to the low tolerance temperature (≤120C) of the polycarbonate film, it is burned and ashed, leaving only The rod-shaped mesoporous material in the membrane, this process completely destroys the structural integrity of the composite mesoporous membrane as a membrane material, thus limiting its practical application as a membrane material
An organic-inorganic composite mesoporous membrane of the applicant and its preparation method and application (patent application number: 200910054082.7), when the organic-inorganic composite mesoporous membrane is prepared by suction filtration, only one organic-inorganic composite mesoporous membrane Porous membrane, less efficient

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  • Method for preparing organic-inorganic compound mesoporous film and application thereof
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  • Method for preparing organic-inorganic compound mesoporous film and application thereof

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Effect test

Embodiment 1

[0036] Preparation of organic-inorganic composite mesoporous membrane assembled with mesoporous materials with a pore diameter of 3.0 nm

[0037]Mix 7.68g of absolute ethanol, 11.57g of tetraethyl orthosilicate and 1ml of hydrochloric acid (2.8mmol / L), stir slowly and evenly, condense and reflux for 90min in a water bath at 60°C; then add 15g of absolute ethanol, 1.52 g cetyltrimethylammonium bromide (CTAB), 4ml of hydrochloric acid (55mmol / L) after the mixed solution, stirring reaction at room temperature 25 ℃ for 30min, cooled to room temperature 25 ℃ to obtain the precursor containing CTAB liquid. Get the precursor solution 2ml that contains CTAB obtained in the above steps, fill it in a 50ml polypropylene microwave box (diameter 50mm), then take a piece of organic porous membrane and place it in the precursor solution in the microwave box, place the uncapped The 50ml polypropylene microwave box containing the membrane and the precursor solution is placed in another empty ...

Embodiment 2

[0045] Preparation of organic-inorganic composite mesoporous membrane assembled with mesoporous materials with a pore diameter of 6.0 nm

[0046] 15g of absolute ethanol, 0.10g of hydrochloric acid (12mol / L) and 2.0g of deionized water were mixed uniformly and placed in a three-necked flask, then, under slow stirring, 1.0g of surfactant P123 was added to the mixed solution until P123 was completely dissolved, and the three-necked flask containing the mixed solution was placed in an oil bath, and at a temperature of 60°C, after slowly stirring for 1 h, 2.13 g of tetraethyl orthosilicate was gradually added dropwise, and at 60 ℃ oil bath temperature for 12h with stirring and aging, and then cooled to room temperature to obtain the precursor solution containing P123. Take the precursor solution containing P123 obtained above and put it in four 50ml polypropylene microwave boxes (diameter 50mm). In the precursor solution in the box, and the microwave box is not covered, the above...

Embodiment 3

[0053] Three pieces of SBA-15 organic-inorganic composite mesoporous membranes (0.0477g) were placed in 10ml, 0.04mg / ml myoglobinase in 0.1mol / L phosphate buffer solution (pH: 6.80) and shaken, and measured by ultraviolet-visible spectrophotometry The change of the absorbance of the myoglobinase solution soaked with the organic-inorganic composite mesoporous membrane at 408nm (the maximum visible absorption peak of the myoglobinase) with the soaking time was detected by the method. The adsorption of mesoporous membranes is directly related.

[0054] Can observe that the absorbance of myoglobinase solution at 408nm place (the visible maximum absorption peak of myoglobinase) gradually increases along with the increase of SBA-15 type organic-inorganic composite mesoporous membrane soaking time in myoglobinase solution by accompanying drawing 8 Decrease, and reach stability after 80 minutes, indicating that the mesoporous material can adsorb biomacromolecules with a molecular size...

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Abstract

The invention discloses a method for preparing an organic-inorganic compound mesoporous film and application thereof, and belongs to the field of film materials. The preparation method comprises three steps of preparing precursor liquid, synthesizing a compound mesoporous film by using microwaves and eluting an surface active agent in the film, wherein the inorganic meso-porous material is assembled in pores in the polycarbonate film by the microwave synthesis to prepare the compound film, and the surface active agent in the compound film is removed by an extraction elution method, so that one or more organic-inorganic compound mesoporous films are obtained. The pore diameter of the mesoporous materials in the film is 3.0nm or 6.0nm. Compared with a hydrothermal synthesis method and a pulping filtration method, the microwave synthesis method has the advantages of higher synthetic rate, less time consumption, lower energy consumption, higher efficiency and complete structure of formed film materials. In addition, because of the orderliness of the mesoporous structure and the nanometer size effect of the pore diameter, the organic-inorganic compound mesoporous film can be applied inthe fields of embedment of biological molecules, biological sensors and the like.

Description

technical field [0001] The invention relates to a preparation method of an organic-inorganic composite mesoporous membrane and an application of the composite mesoporous membrane, belonging to the field of membrane materials. Background technique [0002] As mesoporous membranes have shown their potential application value in sensor devices, heterogeneous catalysis, template synthesis of nanomaterials, optical devices, etc., in recent years, mesoporous materials have been assembled in organic membranes to form organic-inorganic composite mesoporous membranes. research has attracted people's attention. "Mesostructured Silica Tubes and Rods by Templating PorousMembranes" on the "Chem.Eur.J" magazine published in Germany, No. 10, 2004, discloses a preparation method for assembling mesoporous silica rods in porous polycarbonate membranes. Hydrothermal synthesis of organic-inorganic composite mesoporous membranes. However, the disadvantages of this hydrothermal synthesis method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/50B01D69/12
Inventor 陈勇陈安琪甘思文
Owner SHANGHAI INST OF TECH
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