Organic modified nanometer complex oxide material and preparation method thereof

A nanocomposite and oxide technology, applied in the field of nanomaterials, can solve problems such as limited application, and achieve the effects of uniform particle size, controllable size and simple operation.

Inactive Publication Date: 2009-12-09
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] nano-SiO 2 Particles have a wide range of applications in coatings, catalysts, chromatographic fillers, and high-performance ceramics, but the single reactive component Si and the hydrophilicity exhibited by the presence of a large number of silanol groups on the surface limit its application in other fields. Aspects of application

Method used

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  • Organic modified nanometer complex oxide material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Material A (CuEt-SiO 2 ) preparation

[0026] Mix 20g of Np-12, 25g of cyclohexane and 3g of n-octanol to obtain solution A; dissolve 0.02g of copper acetate in 3g of deionized water, and add 0.5g of ammonia water to obtain solution B; 1g of ethyl orthosilicate and 0.2g Mix monoethyltriethoxysilane to obtain solution C; pour solution B into solution A to obtain solution D, add solution C to solution D under vigorous stirring, and age for 8 hours; then, add 10ml of acetone, stir for 30m, leave Obtain a light blue solid; add 30ml of ethanol to the solid, heat and stir for 10m, and centrifuge; repeat this step several times until the surfactant is completely removed; dry at 80°C to obtain the final nanomaterial CuEt-SiO 2 .

Embodiment 2

[0027] The preparation of embodiment 2 material B-L

[0028] The preparation method of materials B-L is the same as that of material A, the difference lies in the types of metal sources or organosilanes, the specific types of metal sources and organosilanes used are shown in Table 1, and the obtained materials are listed in Table 1.

[0029] Table 1 Types of metal sources and organosilanes used in the preparation of materials B-L

[0030] material code

[0031]

Embodiment 3

[0032] Example 3 Material M(MnPh-SiO 2 ) preparation

[0033] Mix 15g sodium dodecylbenzenesulfonate, 35g n-hexane, 6g n-hexanol and 0.5g ammonia water to obtain solution A; dissolve 0.02g manganese acetate in 3g deionized water to obtain solution B; Mix phenyltriethoxysilane to obtain solution C; add solution B and solution C to solution A under stirring conditions, and age for 20 hours; add 15ml of acetone, stir for 20m, and centrifuge to obtain a brown solid; add 60ml of ethanol to the solid , heated and stirred for 15m, and centrifuged; repeated this step several times until the surfactant was removed; dried at 100°C to obtain the final nanomaterial MnPh-SiO 2 .

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Abstract

The invention discloses an organic modified nanometer complex oxide material and a preparation method thereof. The SiO2 microsphere is taken as a substrate, an inorganic metal oxide is embedded in the bulk phase of the SiO2 microsphere and an organic group is connected to the surface of the inorganic metal oxide; the organic modified nanometer complex oxide material is expressed in a general formula MeOg-SiO2, wherein Me is short for Metal, and Og is short for Organicgroup; and Me is one or more of Co, Mn, Cu, Fe, V, Ti, Cr, Ni, Zn, Zr and Al and Og is one or more of methyl, ethyl, propyl, vinyl, chloroallyl, naphthyl, phenyl, trifluoropropyl, fluorophenyl and pentafluorophenyl. The operational process is simple and easy to control. Since the metallic ion and the organic group are respectively introduced on the bulk phase and the surface of the SiO2 simultaneously, the invention has the broad prospect on the application aspects of nano-devices and functional material.

Description

technical field [0001] The invention belongs to nanometer materials, in particular to an organically modified nanocomposite oxide material and its preparation. Background technique [0002] nano-SiO 2 Particles have a wide range of applications in coatings, catalysts, chromatographic fillers, and high-performance ceramics, but the single reactive component Si and the hydrophilicity exhibited by the presence of a large number of silanol groups on the surface limit its application in other fields. aspects of application. Therefore, functionalizing silica particles and expanding their use has become a current research hotspot. Among them, one method is to introduce active components, such as using a loading method to load a part of the active metal, and apply it to a catalytic reaction or a selective adsorption process; while the other method is to use a coupling agent to modify its surface hydrophobically, mainly Applied to the coating industry to increase its dispersibilit...

Claims

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Application Information

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IPC IPC(8): C09C3/08C09C1/28
Inventor 徐杰陈晨张巧红马红张伟孙志强
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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