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A kind of preparation method of hollow cerium oxide

A cerium oxide, hollow technology, which is applied in the field of preparation of hollow cerium oxide, can solve the problems of poor dispersibility and easy agglomeration of hollow cerium oxide, and achieve the effect of good dispersibility, good shape characteristics and reduced influence

Active Publication Date: 2020-12-18
博兴兴业精细化工产业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the shortcomings of traditional hollow cerium oxide such as poor dispersion and easy agglomeration, a preparation method of hollow cerium oxide is provided

Method used

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  • A kind of preparation method of hollow cerium oxide

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example 1

[0023] Mix glucose and water in a beaker at a mass ratio of 1:25, and add potassium iodate 0.2 times the mass of glucose to the beaker, and stir and mix for 180 minutes at a temperature of 65°C and a rotational speed of 350r / min to obtain Glucose mixed solution, mix glucose mixed solution with barium chloride solution with a mass fraction of 20% at a mass ratio of 1:5, stir and mix for 40 minutes at a temperature of 45°C and a rotational speed of 400r / min, and then filter to obtain Filtrate, mix the filtrate and sodium sulfate solution with a mass fraction of 22% at a mass ratio of 1:4, stir and mix for 40 minutes at a temperature of 45°C and a rotational speed of 400r / min, then filter to remove the filter cake. Dextrose mixed liquid; pulverize microcrystalline cellulose and pass through a 120-mesh sieve to obtain refined microcrystalline cellulose, and mix the refined microcrystalline cellulose and sodium hydroxide solution with a mass fraction of 25% in a mass ratio of 1:12 ...

example 2

[0025]Mix glucose and water in a beaker at a mass ratio of 1:25, and add potassium iodate 0.2 times the mass of glucose to the beaker, and stir and mix for 180 minutes at a temperature of 65°C and a rotational speed of 350r / min to obtain Glucose mixed solution, mix glucose mixed solution with barium chloride solution with a mass fraction of 20% at a mass ratio of 1:5, stir and mix for 40 minutes at a temperature of 45°C and a rotational speed of 400r / min, and then filter to obtain Filtrate, mix the filtrate and sodium sulfate solution with a mass fraction of 22% at a mass ratio of 1:4, stir and mix for 40 minutes at a temperature of 45°C and a rotational speed of 400r / min, then filter to remove the filter cake. mixed solution of glucose; chitosan and glacial acetic acid solution with a mass fraction of 4% were mixed in a mass ratio of 1:60, and urea 5 times the mass of chitosan was added to the mixture of chitosan and glacial acetic acid solution, The temperature is 40°C, the ...

example 3

[0027] Mix glucose and water in a beaker at a mass ratio of 1:25, and add potassium iodate 0.2 times the mass of glucose to the beaker, and stir and mix for 180 minutes at a temperature of 65°C and a rotational speed of 350r / min to obtain Glucose mixed solution, mix glucose mixed solution with barium chloride solution with a mass fraction of 20% at a mass ratio of 1:5, stir and mix for 40 minutes at a temperature of 45°C and a rotational speed of 400r / min, and then filter to obtain Filtrate, mix the filtrate and sodium sulfate solution with a mass fraction of 22% at a mass ratio of 1:4, stir and mix for 40 minutes at a temperature of 45°C and a rotational speed of 400r / min, then filter to remove the filter cake. Dextrose mixed liquid; pulverize microcrystalline cellulose and pass through a 120-mesh sieve to obtain refined microcrystalline cellulose, and mix the refined microcrystalline cellulose and sodium hydroxide solution with a mass fraction of 25% in a mass ratio of 1:12 ...

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Abstract

The invention discloses a preparation method of hollow cerium oxide, and belongs to the technical field of preparation of rare earth materials. The preparation method includes the steps of mixing an additive with water according to the mass ratio of (1 to 3) to (1 to 5), adding a treating agent 0.1 to 0.3 times of the additive in mass, and performing stirring and mixing to obtain an additive mixture; mixing the additive mixture with urease according to the mass ratio of (10 to 1) to (30 to 1), adding sodium borohydride 0.01 to 0.05 times of the additive mixture in mass, and performing stirringand mixing; adding a sulfuric acid solution 0.1 to 0.2 times of the additive mixture in mass, and performing stirring, mixing, filtering and drying to obtain a semi-finished cerium oxide product; calcinating the semi-finished cerium oxide product to obtain the hollow cerium oxide. The hollow cerium oxide prepared by the preparation method has the advantages of high dispersibility and less proneness to agglomeration, thereby having a broad prospect in the development of the technological industry of rare earth material preparation.

Description

technical field [0001] The invention discloses a method for preparing hollow cerium oxide, which belongs to the technical field of rare earth material preparation. Background technique [0002] Dye pollution is one of the main sources of water environment pollution. The structure of dye pollutants is stable, and the usual chemical and biological treatment methods are difficult to meet the technical and cost requirements of engineering. The adsorption and visible light photocatalytic degradation of dyes have attracted extensive attention of researchers because they do not consume additional energy, have low processing costs, and are non-toxic and harmless. The development of novel dye adsorption and visible light photocatalytic materials has been a hot spot in water treatment. With the development of material science and nanotechnology, inorganic hollow microspheres have received unprecedented attention because of their unique properties and wide range of applications. Hol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F17/235C01F17/10B82Y40/00
CPCB82Y40/00C01P2004/34C01P2004/64C01F17/206
Inventor 刘菊花刘侠宋宇星
Owner 博兴兴业精细化工产业发展有限公司
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