Hollow nanocomposite oxide material and preparation thereof

A composite oxide and hollow nanotechnology, applied in the field of nanomaterials, can solve the problems affecting the synthesis of hollow silicon oxide and large limitations

Inactive Publication Date: 2012-05-16
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the limitations are large, and it is not easy to introduce metals under many hollow silica synthesis conditions, or the introduction of metals will affect the synthesis of hollow silica

Method used

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  • Hollow nanocomposite oxide material and preparation thereof
  • Hollow nanocomposite oxide material and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 Material Co-SiO 2 preparation of

[0019] Mix 8.00g Np-12, 15.00g cyclohexane and 3.00g n-octanol to obtain solution A; dissolve 0.02g cobalt acetate in 3.00g deionized water, and add 1.00g ammonia water to obtain solution B; 1.00g orthosilicate Methyl ester is solution C; pour solution B into solution A to obtain solution D, add solution C to solution D under stirring, and age for 8 hours; then, add 8 g of acetone, stir for 30 minutes, and centrifuge to obtain a solid;

[0020] Add 25g of ethanol to the solid, heat and stir for 10min, and centrifuge; repeat this step 3-6 times until the surfactant is removed; dry at 80°C to obtain the final nanomaterial Co-SiO 2 . Such as figure 1 As shown, it can be seen that the prepared material has uniform particle size and good dispersion, the particle size is about 50nm, and the hollow diameter is about 10nm.

Embodiment 2

[0021] Example 2 Material Cu-SiO 2 preparation of

[0022] Mix 2.00g sodium dodecylbenzenesulfonate, 10.00g n-hexane and 1.00g n-butanol to obtain solution A; dissolve 0.02g cupric chloride in 2.00g deionized water, and add 2.00g ammonia water to obtain solution B; 1.00g of methyl orthosilicate is solution C; pour solution B into solution A to obtain solution D, add solution C to solution D under stirring, and age for 15 hours; then, add 8g of acetone, stir for 30 minutes, and centrifuge to obtain a solid;

[0023] Add 25g of ethanol to the solid, heat and stir for 10min, and centrifuge; repeat this step 2-5 times until the surfactant is removed; dry at 80°C to obtain the final nanomaterial Cu-SiO 2 .

Embodiment 3

[0024] Example 3 Material Zn-SiO 2 preparation of

[0025] Take 5.00g of cetyltrimethylammonium bromide, 12.00g of toluene and 2.00g of n-amyl alcohol and mix to obtain solution A; dissolve 0.02g of zinc nitrate in 4.00g of deionized water, and add 0.50g of ammonia water to obtain solution B; 1.00g of methyl orthosilicate is solution C; pour solution B into solution A to obtain solution D, add solution C to solution D under stirring, and age for 24 hours; then, add 8g of acetone, stir for 30 minutes, and centrifuge to obtain a solid;

[0026] Add 25g of ethanol to the solid, heat and stir for 10min, and centrifuge; repeat this step 4 times until the surfactant is removed; dry at 80°C to obtain the final nanomaterial Zn-SiO 2 .

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Abstract

The invention relates to a hollow nanocomposite oxide material. The material is prepared by embedding inorganic metal oxide into a hollow silicon oxide substrate, wherein the inorganic metal oxide is highly dispersed into the silicon oxide substrate; and inorganic metal is one or more of Co, Cu, Ni, Zn, Ag, Au, Ir, Rh, Pt, Pd and Ru. The hollow nanocomposite oxide material synthesized by the method has the particle size of 20 to 500nm and the hollow size of 5 to 20nm, has the characteristics of controllable and uniform particle size, high dispersibility and the like, and is easy to operate.

Description

technical field [0001] The invention belongs to nanometer materials, in particular to a hollow nanocomposite oxide material and its preparation. Background technique [0002] Inorganic hollow sphere materials have the advantages of low density, high specific surface area, good stability, permeability, etc., and have high application prospects in the fields of catalysis, drug release, biomedicine, artificial cells, cosmetics, coatings, etc., which has attracted academic attention. wide attention from the world and industry. With the advent of mesoporous silicon materials, silicon materials have been developed unprecedentedly, and hollow silicon oxide has become an inorganic hollow sphere material that has been widely studied. [0003] There are mainly the following methods for the preparation of hollow silica materials. One is the hard template method, which uses solid particles such as polystyrene as a template, and silicon oxide grows on the outer surface of the template ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/75B01J23/72B01J23/06B01J23/46B01J23/89B01J35/02B82Y30/00B82Y40/00
Inventor 徐杰王敏陈晨马继平
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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