Preparation method of high-flux two-dimensional clay-based separation membrane for water treatment

The invention discloses a preparation method of a high-flux two-dimensional clay-based separation membrane for water treatment, and belongs to the technical field of functional materials. The invention aims to prepare a high-flux two-dimensional separation membrane based on a clay (such as montmorillonite, kaolinite, hydrotalcite, vermiculite and the like)-based material, and applies the high-flux two-dimensional separation membrane to water treatment to highlight the cost advantage of the high-flux two-dimensional separation membrane. The preparation method comprises the following steps: firstly, uniformly dispersing and stripping a clay-based material, and then etching with an acid solution to generate nanopores on the surface of the original layered two-dimensional material, thereby shortening the ion transport path, reducing the film resistance and achieving higher ion flux; and because the strength of the clay material is relatively low, the etched clay-based material is combined with the reinforcing age