关键词: 锂离子, 无机金属锂离子筛, 制备方法, 选择性吸附材料

Abstract:

There are many preparation methods for inorganic metal lithium ion sieve materials, and it is also a type of Li-adsorption material with the most potential for industrial production and practical application. Due to the different preparation methods have their own technical characteristics and limitations, the so-prepared ion sieve materials are different in the morphology, selectivity, adsorption capacity and structural stability. It has important significance to sum up the technical advantages and shortcomings of these preparation methods as well as the characteristics of so-prepared materials for the design and preparation of ion sieve materials with excellent comprehensive performance. In this paper, the preparation research progress of inorganic metal lithium ion sieve by solid phase reaction, sol-gel, co-precipitation, hydrothermal and other common methods were reviewed. The microstructure, properties, crystallinity and adsorption capacity of the inorganic metal ion sieve materials prepared by these preparation methods were mainly discussed as well as the technical advantages and disadvantages of the corresponding preparation method. The technical bottleneck of different preparation methods to prepare inorganic metal lithium ion sieve materials with excellent adsorption performance were also analyzed. Finally, some strategies for preparing ion sieve materials with excellent adsorption performance by different preparation methods were put forward in order to promote the large-scale production and practical application of inorganic metal lithium ion sieve materials.

Key words: lithium ion, inorganic lithium ion sieve, preparation method, selective adsorption materials