The Preparation and Applications of Calcium Ferrite as Functional Materials: A Review

Calcium ferrite is recognized as a potential green and efficient functional material due to its advantages of magnetism, electrochemistry, catalysis, and biocompatibility in the fields of materials chemistry, environmental engineering, and biomedicine. Therefore, it is essential to systematically summarize the obtained research results and analyze new perspectives on calcium ferrite and its composite materials. Based on the presented studies on calcium ferrite and its composite materials, the types and structures of the crystal are summarized. In addition, the current application technologies and theoretical mechanisms with various properties in different fields are elucidated. Moreover, the various preparation methods of it and its composites are elaborated in detail. Above all, the advantages and disadvantages of the synthesis methods of calcium ferrite and its composite materials are discussed, and the main problems existing and the challenges faced in practical production in the future are pointed out. Furthermore, the key future research directions of calcium ferrite and its composite materials have prospected from the potential application technologies to provide references for its synthesis and efficient utilization.