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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  • 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 comp

Method used

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  • Organic modified nanometer complex oxide material and preparation method thereof

Examples

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Comparison scheme
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Example Embodiment

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

[0026] Mix 20g Np-12, 25g cyclohexane and 3g n-octanol to obtain solution A; dissolve 0.02g copper acetate in 3g deionized water and add 0.5g ammonia to obtain solution B; 1g ethyl orthosilicate and 0.2g One ethyl triethoxy silane is mixed to obtain solution C; solution B is poured into solution A to obtain solution D. Under vigorous stirring, solution C is added to solution D and aged for 8 hours; then, add 10 ml of acetone, stir for 30 m, and separate Obtained a light blue solid; add 30ml ethanol to this 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 .

Example Embodiment

[0027] Example 2 Preparation of material B-L

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

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

[0030] material code

[0031]

Example Embodiment

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

[0033] Take 15g of sodium dodecylbenzene sulfonate, 35g of n-hexane, 6g of n-hexanol and 0.5g of ammonia to obtain solution A; 0.02g of manganese acetate dissolved in 3g of deionized water to obtain solution B; 1g of ethyl orthosilicate and 0.4g of water Phenyltriethoxysilane was mixed to obtain solution C; solution B and solution C were added to solution A with stirring, and aged for 20 hours; 15ml of acetone was added, stirred for 20m, and centrifuged to obtain a brown solid; 60ml of ethanol was added to this solid , Heating and stirring for 15m, centrifugation; repeat this step several times until the surfactant is completely removed; drying at 100°C to obtain the final nano-material 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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