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A kind of nano cerium oxide composite material and its preparation method, antioxidant

A nano-cerium oxide and composite material technology, applied in the field of antioxidants, nano-cerium oxide composite materials and their preparation, can solve the problems of reducing the antioxidant capacity of materials, difficult to control the synthesis process, harsh conditions, etc., and achieve superior antioxidant capacity. , the effect of low cost and short production process

Inactive Publication Date: 2016-01-06
哈尔滨本色生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the steps of these methods are relatively complicated, the synthesis process is difficult to control, the conditions are harsh, and it is difficult to realize industrialization; and due to the use of molecular bonding in the later stage, the antioxidant capacity of the material itself is greatly reduced.

Method used

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  • A kind of nano cerium oxide composite material and its preparation method, antioxidant
  • A kind of nano cerium oxide composite material and its preparation method, antioxidant
  • A kind of nano cerium oxide composite material and its preparation method, antioxidant

Examples

Experimental program
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Effect test

Embodiment 1

[0023] A nano-cerium oxide composite material is composed of nano-cerium oxide with a spindle-shaped porous structure grafted by β-cyclodextrin; the length of the nano-cerium oxide with a spindle-shaped porous structure is 60-80nm, and the width is 20-30nm.

[0024] A preparation method of nano cerium oxide composite material, the steps comprising:

[0025] A. Dissolving β-cyclodextrin and cerium nitrate in water to prepare a mixed solution, the ratio of the amount of β-cyclodextrin and cerium nitrate in the mixed solution is 1:1, and the concentration of the β-cyclodextrin is 0.1mol / L, the concentration of cerium nitrate is 0.1mol / L;

[0026] B. Add sodium hydroxide to the mixed solution prepared in step A and fully stir; the ratio of the amount of sodium hydroxide to cerium nitrate is 15:1;

[0027] C. Heat the mixed solution prepared in step B to 120°C, react for 3 hours to obtain a precipitate, cool the precipitate, filter, wash with water until neutral, and dry it in vac...

Embodiment 2

[0032] A nano-cerium oxide composite material is composed of nano-cerium oxide with a spindle-shaped porous structure grafted by β-cyclodextrin; the length of the nano-cerium oxide with a spindle-shaped porous structure is 70-80nm, and the width is 20-30nm.

[0033] A preparation method of nano cerium oxide composite material, the steps comprising:

[0034] A. Dissolving β-cyclodextrin and cerium chloride in water to prepare a mixed solution, the ratio of the amount of β-cyclodextrin and cerium chloride in the mixed solution is 0.5:1, the β-cyclodextrin The concentration is 0.1mol / L, and the concentration of cerium chloride is 0.2mol / L;

[0035] B. Add potassium hydroxide to the mixed solution prepared in step A and stir fully, so that the mixed solution produces a flocculent mixture; the ratio of the amount of substance of the potassium hydroxide to cerium chloride is 5:1;

[0036] C. Heat the mixed solution prepared in step B to 180°C, react for 0.5 hours to obtain a precip...

Embodiment 3

[0039] A nano-cerium oxide composite material is composed of nano-cerium oxide with a spindle-shaped porous structure grafted by β-cyclodextrin; the length of the nano-cerium oxide with a spindle-shaped porous structure is 70-90nm, and the width is 30-50nm.

[0040] A preparation method of nano cerium oxide composite material, the steps comprising:

[0041] A. Dissolving β-cyclodextrin and cerium nitrate in water to prepare a mixed solution, the ratio of the amount of β-cyclodextrin and cerium nitrate in the mixed solution is 2:1, and the concentration of the β-cyclodextrin is 0.025mol / L, the concentration of cerium nitrate is 0.0125mol / L;

[0042] B. Add sodium hydroxide to the mixed solution prepared in step A and stir fully, so that the mixed solution produces a flocculent mixture; the ratio of the amount of sodium hydroxide to cerium nitrate is 3.75:1;

[0043] C. Heat the mixture prepared in step B to 150°C and react for 20 hours to obtain a precipitate. Filter and wash ...

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Abstract

The invention relates to a nanometer cerium oxide composite and a preparation method thereof as well as an antioxidant. The nanometer cerium oxide composite is formed by beta-cyclodextrin grafted cambiform porous structure nanometer cerium oxide, has uniform particle diameter, good activity and very superior anti-oxidation capacity and is small in size and stable in water. The preparation method has the advantages of high yield, low cost and short production process.

Description

Technical field: [0001] The invention relates to the technical field of nanometer materials, in particular to a nanometer cerium oxide composite material, a preparation method thereof, and an antioxidant. technical background: [0002] Oxidation reaction is a key process in the continuation of life, but at the same time it is also one of the culprits of human diseases. Free radicals or oxidants break down cells and tissues, affect metabolic function, and cause various health problems. Under normal circumstances, cells can resist the damage caused by these free radicals, but due to unhealthy diet, sun exposure, stress, environmental pollution and other problems, the protection of cells themselves is very limited. If excessive oxidative free radicals can be eliminated, many free radical-induced and aging-related diseases can be prevented. For example, common cancers, arteriosclerosis, diabetes, cataracts, cardiovascular diseases, senile dementia, arthritis, etc., are all con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K33/24A61K47/48A61P39/06A61K47/69
Inventor 耿保友余楠汪青
Owner 哈尔滨本色生物科技有限公司
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