Preparation method of hollow cerium oxide

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 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. Hollow microsph...

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is: Aiming at the shortcomings of traditional holl