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Ordered organic-inorganic hybrid mesoporous silica and loaded gold nanomaterials, and preparing method thereof

A technology of mesoporous silica and nano-gold, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the organic function The group distribution is not uniform, the size distribution of gold particles is difficult to control, etc., which is beneficial to environmental protection, good catalytic application prospects, and small particle size.

Active Publication Date: 2007-08-08
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This preparation process is simple, but the size and distribution of gold particles in the channels are difficult to control due to the uneven distribution of organic functional groups in the carrier.

Method used

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  • Ordered organic-inorganic hybrid mesoporous silica and loaded gold nanomaterials, and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] 1. Dissolve 5ml of 6-mercapto-1-hexanol in 20ml of absolute ethanol with stirring at room temperature, then add 13.8g of iodine, and stir for 24 hours. After the solvent was removed by rotary evaporation, 30 ml of tert-butyl methyl ether was added, and then the iodine was extracted with 10 mg / ml sodium bisulfite solution, and the solvent was removed by rotary evaporation. Add 5 ml of thionyl chloride to the residue, stir at room temperature for 24 hours, and remove volatile substances by rotary evaporation. Finally, 5ml of 3-ethoxysilylpropyl-4,5-dihydroimidazolium ionic liquid was added to the residue, heated to reflux for 24 hours under the protection of N2, and the volatile matter was removed in vacuum to obtain a viscous liquid, which contained thioether The imidazole-based ionic liquid organofunctional siloxane precursor.

[0039] 2. Keep the temperature at 35°C, dissolve 4.0g P123 in 150ml 1.6M (M is mol / l) hydrochloric acid solution to make the pH of the solutio...

Embodiment 2

[0042] 1. Dissolve 5ml of 9-mercapto-1-nonanol in 20ml of absolute ethanol with stirring at room temperature, then add 13.8g of iodine, and stir for 24 hours. After the solvent was removed by rotary evaporation, 30 ml of tert-butyl methyl ether was added, and then iodine was extracted with 15 mg / ml sodium bisulfite solution, and the solvent was removed by rotary evaporation. Add 5 ml of thionyl chloride to the residue, stir at room temperature for 24 hours, and remove volatile substances by rotary evaporation. Finally, 5ml of 3-ethoxysilylpropyl-4,5-dihydroimidazolium ionic liquid was added to the residue, heated to reflux for 24 hours under the protection of N2, and the volatile matter was removed in vacuum to obtain a viscous liquid, which contained thioether The imidazole-based ionic liquid organofunctional siloxane precursor.

[0043] 2. With the temperature kept at 35°C, dissolve 4.0g of P123 in 150ml of 1.6M hydrochloric acid solution to make the pH of the solution reac...

Embodiment 3

[0046] 1. Dissolve 5ml of 3-mercapto-1-propanol in 20ml of absolute ethanol with stirring at room temperature, then add 13.8g of iodine, and stir for 24 hours. After the solvent was removed by rotary evaporation, 30 ml of tert-butyl methyl ether was added, and then iodine was extracted with 15 mg / ml sodium bisulfite solution, and the solvent was removed by rotary evaporation. Add 5 ml of thionyl chloride to the residue, stir at room temperature for 24 hours, and remove volatile substances by rotary evaporation. Finally, 5 ml of 3-ethoxysilylpropyl-4,5-dihydroimidazolium ionic liquid was added to the residue under N 2 Heating to reflux under protection for 24 hours, removing volatile matter in a vacuum to obtain a viscous liquid, that is, an imidazole-based ionic liquid organofunctional siloxane precursor containing thioether.

[0047] 2. With the temperature kept at 35°C, dissolve 4.0g of P123 in 150ml of 1.6M hydrochloric acid solution to make the pH of the solution reach 2....

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Abstract

The invention discloses a sequent organic-inorganic hybridized dielectric silica and loaded nanometer gold material and making method, which is characterized by the following: blending n-ethyl orthosilicate and one organic functional siloxane primer with imidazole ionic liquid of thioether; synthesizing hybridized organic-inorganic dielectric silica material with imidazole ionic liquid of thioether under certain temperature; utilizing rich hydroxy on the channel surface to reduce HAuCl4 directly.

Description

Technical field: [0001] The invention relates to an ordered organic-inorganic hybrid mesoporous silicon dioxide material, its loaded nano-gold particle material and its preparation method. Specifically, it relates to a bridging organic functionalized precursor in which a sulfide-containing imidazole ionic liquid is embedded in the pore wall of an organic-inorganic hybrid mesoporous silica material and a preparation method thereof. An organic-inorganic hybrid mesoporous silica material pore preparation nano-gold particles and a preparation method thereof. Background technique: [0002] Mesoporous SiO 2 Because gold nanoparticle materials can meet the special structural properties required by many catalytic reactions, researches on them have been increasing in recent years. But due to SiO 2 The isoelectric point of the surface is low (IEP ≈ 2), and it is difficult to prepare gold nanoparticles with small particle size and uniform dispersion by conventional deposition-precip...

Claims

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Application Information

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IPC IPC(8): B01J31/02B01J23/52B01J21/08
Inventor 银董红金勇刘建福喻宁亚秦亮生黎成勇
Owner CHINA TOBACCO HUNAN INDAL CORP
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