Hollow magnetic nano-grade composite catalytic material and preparation method thereof

The invention discloses a hollow magnetic nano-grade composite catalytic material MOx(OH)/ferrite magnetic nano-cluster and a preparation method thereof. According to the invention, metal salt and ferrite magnetic nano-cluster with certain amounts are added into appropriate micro-molecular monohydric alcohol or polyhydric alcohol; the mixture is subjected to heat treatment for a certain period of time under a certain temperature; an obtained product is subjected to magnetic separation-washing, and drying treatment, such that the inorganic nano-grade composite material hollow MOx(OH)/ferrite magnetic nano-cluster is obtained, wherein MOx(OH) is one or a mixture of more than two selected from metal oxide, composite oxide, basic oxide, and metal. The invention provides a simple and pervasive preparation method. With the invention, several types of novel hollow magnetic nano-grade composite catalytic materials are obtained. A novel idea is provided for the preparations of magnetic nano-grade composite catalytic materials. A catalytic performance of the material is evaluated in a benzyl alcohol oxidation system, and a research basis is provided for industrialized application of the material.