A high-efficiency two-dimensional layered membrane for separating metal cations and a preparation method and application thereof

Abstract

The application relates to the field of ion transmission and separation, and specifically discloses a two-dimensional layered film for efficient metal cation separation, a preparation method and application. The preparation method of the two-dimensional layered film for efficient metal cation separation is as follows: covalent grafting, amino small molecule crosslinking and surface tension optimization. The two-dimensional layered film can be used in the fields of heavy metal treatment of wastewater, lithium extraction from salt lakes and the like, and can be used for efficient metal cation separation, and has the advantages of high ion flux and high ion selectivity.

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