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Material for hollow nano organosilicon sphere and preparation method of material

A technology of nano-organosilicon and hollow spheres, applied in chemical instruments and methods, inorganic chemistry, and other chemical processes, can solve problems in the field of difficult oil and gas adsorption, and achieve excellent hydrophobic performance, variable wall properties, and good oil and gas adsorption Effect

Inactive Publication Date: 2012-12-05
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The silicon source used in this experiment is self-synthesized, and the pore size of the product is larger than 20 nm, which is difficult to apply in the field of oil and gas adsorption

Method used

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  • Material for hollow nano organosilicon sphere and preparation method of material
  • Material for hollow nano organosilicon sphere and preparation method of material
  • Material for hollow nano organosilicon sphere and preparation method of material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Dissolve 0.5 g of F108 (nonionic surfactant F108) and 1.0 g of TMB (mesitylene) in 30 mL of 2 mol×L under stirring at 25 °C in a constant temperature water bath -1 In the hydrochloric acid system, after stirring for more than 6 hours to form a milky white emulsion liquid homogeneous system, add 0.9 g TEOS (tetraethyl orthosilicate) and 0.171 g BTSE (1,2-bis (triethoxysilyl) ethane) After stirring for 6 hours, 0.5 g of DMDMOS (dimethyldimethoxysilane) was added, and constant temperature stirring was continued for 48 hours. The resulting liquid was poured into a dialysis bag with a molecular weight cut-off of 14,000, put into distilled water and repeatedly replaced with distilled water (once every 6 hours) and dialyzed for at least two days. After dialysis, the solution from which hydrochloric acid or other inorganic ions were removed was dried in an oven at 100 °C, and the resulting solid was refluxed in ethanol for 12 hours to remove the surfactant to obtain a nano-orga...

Embodiment 2

[0031] Dissolve 2.0 g F108 and 1.0 g TMB in 30 mL 2 mol×L under stirring at 25 °C in a constant temperature water bath -1 In the hydrochloric acid system, after stirring for more than 6 hours to form a milky white emulsion liquid homogeneous system, add 0.9 g TEOS and 0.171 g BTSE, add 0.5 g DMDMOS after stirring for 6 hours, and continue stirring at constant temperature for 48 hours. The resulting liquid was poured into a dialysis bag with a molecular weight cut-off of 14,000, put into distilled water and repeatedly replaced with distilled water (once every 6 hours) and dialyzed for at least two days. After dialysis, the solution from which hydrochloric acid or other inorganic ions were removed was dried in an oven at 100 °C, and the resulting solid was refluxed in ethanol for 12 hours to remove the surfactant to obtain a nano-organic silicon hollow sphere material.

Embodiment 3

[0033]Dissolve 1.0 g F108 and 1.0 g TMB in 17 mL 2 mol×L under stirring at 25 °C in a constant temperature water bath -1 In the hydrochloric acid system, after stirring for more than 6 hours to form a milky white emulsion liquid homogeneous system, add 0.9 g TEOS and 0.171 g BTSE, add 0.5 g DMDMOS after stirring for 6 hours, and continue stirring at constant temperature for 48 hours. The resulting liquid was poured into a dialysis bag with a molecular weight cut-off of 14,000, put into distilled water and repeatedly replaced with distilled water (once every 6 hours) and dialyzed for at least two days. After dialysis, the solution from which hydrochloric acid or other inorganic ions were removed was dried in an oven at 100 °C, and the resulting solid was refluxed in ethanol for 12 hours to remove the surfactant to obtain a nano-organic silicon hollow sphere material.

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Abstract

The invention relates to a material for a hollow nano organosilicon sphere and a preparation method of the material, which belong to the technical field of novel mesoporous functional materials. The preparation method comprises the steps of producing, dialyzing and drying the hollow nano organosilicon sphere and removing a surfactant. The reaction condition is mild, the operation is easy and simple, a cosurfactant is not required to be added, and the final material is cheap and easy to obtain. Physicochemical properties of the material for the hollow organosilicon sphere, such as particle diameter, pore diameter, wall thickness and composition, can be modulated by changing the raw material ratio, reaction temperature, acid concentration in a reaction system, reaction time, adding amount of pore-enlarging agents and polymerization inhibitor, and categories and proportion of organosilicon sources. The material has wide application prospects in the fields of oil gas adsorption, catalyst carriers, slow drug release, separation, chromatography, pigments, microreactors and the like.

Description

[0001] technical field [0002] The invention belongs to the technical field of novel mesoporous functional materials, and in particular relates to a mesoporous organosilicon hollow sphere and a preparation method thereof. Background technique [0003] In recent years, hollow microspheres have received more and more attention and research due to their unique properties such as low density, large specific surface area, good thermal stability and surface permeability, and large internal space. Lu Research Group [Djojoputro, Qiao S Z, Wang L Z, Yu C Z, Lu G Q. Am. Chem. Soc. 2006, 128, 6320-6321] to [C 3 f 7 O(CFCF 3 CF 2 O) 2 CFCF 3 CONH(CH 2 ) 3 N + (C 2 h 5 ) 2 CH 3 I-] (FC4) as the co-template agent synthesized for the first time a highly ordered hollow ethyl PMO material. The FC4 used in this method is expensive and difficult to realize industrial production. Yang Qihua's research group [Liu J, Bai S Y, Zhong H, Li C, Yang Q H. Phys. Chem. 2010, 114, 9...

Claims

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Application Information

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IPC IPC(8): B01J20/22B01J20/28B01J20/30
Inventor 王红宁张可陈若愚唐美黄维秋
Owner CHANGZHOU UNIV
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