Mechanochemical methods advanced the synthesis of MOFs . ZIF-8 was synthesized via one-step mechanochemical processing using a stoichiometric ratio of ZnO nanoparticles and Hmim . The procedure showed the complete conversion of ZnO nanopowders into ZIF-8 with a particle size of ca. 80 nm in diameter with minimal agglomeration. The materials have a surface area of 1885 m 2 /g . The grinding process can be assisted with different chemicals such as NaOH and ionic liquids . The synthesis involved adding a small amount of NaOH powder before grinding at a temperature of 343 K for 24 h . The mechanochemical synthesis procedure is simple, fast, and can be used for large-scale production. However, the products lack high purity and contain residual inorganic materials such as ZnO.