Method for synthesizing 2D ultrathin ZIF-67 with hierarchical porous structure

The disclosure is related to the field of preparation of nanometer materials, and, in particular, to a method for synthesizing a 2D ultrathin zeolitic imidazolate framework-67 (ZIF-67) with a hierarchical porous structure, the method converting ZIF-67 from nanoparticles into 2D ultrathin nanosheets with a hierarchical porous structure by controlling a dropping amount of water and the reaction time. With the method, the 2D ultrathin ZIF-67 with a hierarchical porous structure can be made from readily available starting materials in a one pot synthesis. The method is feasible on industrial scale and has both economic and environmental benefits due to the simple process and low cost.