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Silicon oxide mesoporous material and preparing method thereof

A technology of mesoporous material and silica, applied in the field of silica mesoporous material and its preparation, can solve problems such as limitation

Inactive Publication Date: 2008-04-30
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This material without pores limits its application in drug separation, drug loading, catalysis, etc.

Method used

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  • Silicon oxide mesoporous material and preparing method thereof
  • Silicon oxide mesoporous material and preparing method thereof
  • Silicon oxide mesoporous material and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1 (pure enantiomer spiral streamer morphology silica mesoporous material)

[0036] First add 0.32g (1mmol) C 14 - Dissolve L-AlaS in 22g deionized water, stir at room temperature to dissolve; add 10g (0.1mmol) 0.01M hydrochloric acid solution, stir at room temperature for 20-30 minutes; put it in 0°C and stir for 1-5 hours, Add an alkaline silane with an amino group to help structure-directing agent, then add organosilane into the mixture and stir evenly, then let stand at 0°C for 1-2 days, centrifuge, wash with deionized water, dry at 30°C, and extract to obtain Pure enantiomer spiral ribbon morphology silica mesoporous material, the length of the spiral ribbon is 3-10μm, the diameter is 150-200nm, the pitch is 500-600nm, the mesoporous diameter of the material is 3.6nm, and the pore volume is 600mm 3 g -1 , the specific surface area is 349m 2 g -1 . figure 2 This is the scanning electron microscope picture of this silica mesoporous material, from whic...

Embodiment 2

[0037] Embodiment 2 (hollow spherical shape silica mesoporous material)

[0038] First add 0.32g (1mmol) C 14 - Dissolve L-AlaS in 22g deionized water, stir at room temperature to dissolve; add 10g (0.1mmol) 0.01M hydrochloric acid solution, stir at room temperature for 20-30 minutes; put it in 10°C and stir for 1-5 hours, Add the basic silane structure-directing agent with amino groups, then add the organosilane into the mixture and stir evenly, then let stand at 10°C for 1-2 days, centrifuge, wash with deionized water, dry at 30°C, and extract to obtain Silica mesoporous material with hollow sphere shape, the diameter of the hollow sphere is 100-400nm, the diameter of the hollow part is 100-150nm, and the thickness of the spherical shell is 50-60nm. The material has a mesopore diameter of 3.6nm and a pore volume of 300-400mm 3 g -1 , the specific surface area is 300-400m 2 g -1 , with a two-dimensional hexagonal p6mm structure. Figure 4 This is the scanning electron m...

Embodiment 3

[0039] Embodiment 3 (pure enantiomer spiral streamer morphology silica mesoporous material)

[0040] First add 0.29g (1mmol) C 14 - Dissolve L-AlaA in 10g deionized water, then add 9g (1mmol) 0.1M sodium hydroxide solution, stir at room temperature to dissolve, then put it at 0°C and stir for 1-5 hours, add the base with amino group Non-toxic silane structure-directing agent, then add organosilane into the mixture and stir evenly, then stand at 0°C for 1-2 days, centrifuge, wash with deionized water, dry at 30°C, and extract to obtain pure enantiomer spiral ribbons Silica mesoporous material, the length of the spiral ribbon is 3-10 μm, the diameter is 150-200nm, and the pitch is 500-600nm. The material has a pore diameter of 3.6nm and a pore volume of 600mm 3 g -1 , the specific surface area is 349m 2 g -1 .

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Abstract

The invention discloses a silica dioxide porous material and process for preparation, wherein the material is provided with pure-projector helical band or hollow ball appearance. The invention uses the acid or salt of chiral anion surface activator as main structure guiding agent, under alkali or acid, uses the alkali silane with amido group as auxiliary structure guiding agent, and uses organic silane as silicon source, under different reaction temperatures to prepare two silica dioxide porous materials with different appearances, wherein the invention prepares silica dioxide porous material with pure-projection helical band appearance under 0-5DEG C, and forms silica dioxide porous material with hollow ball appearance under 8-15DEG C, which has two-dimension hexagonal crystal system p6mm structure. In addition, the wall of hole of the material is uniformly distributed with amido function group, to expand application range in the technical fields as drug separation, drug load, and catalysis or the like.

Description

technical field [0001] The present invention relates to an inorganic porous material and a preparation method thereof, in particular to a silica mesoporous material and a preparation method thereof. This mesoporous material has the shape of a pure enantiomer spiral ribbon or a hollow sphere and can be used in medicine Separation, drug loading, catalysis and other fields. Background technique [0002] Mesoporous materials have large specific surface area and pore volume, adjustable pore structure, adjustable pore size, modifiable surface properties, and controllable morphology, etc. It has great application potential in various fields such as templates for synthesizing other materials. In the preparation of inorganic mesoporous materials, organic structure-directing agents are required under most conditions. The structure-directing agents used by people are amphiphilic surfactants, mainly including cationic surfactants and nonionic surfactants. Literature Nature 359, 710-7...

Claims

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Application Information

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IPC IPC(8): C01B33/113C01B33/18
Inventor 车顺爱靳海英
Owner SHANGHAI JIAO TONG UNIV
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