Scale‐up of the Synthesis of Zeolitic Imidazolate Framework ZIF‐4

Abstract A new synthesis route for the zeolitic imidazolate framework ZIF‐4 is reported. About 200 g of ZIF‐4 are prepared by sonothermal synthesis from ZnO at room temperature. The ZIF‐4 prepared by sonothermal synthesis is comparable to the ZIF‐4 synthesized by the pathway reported in literature with respect to the powder X‐ray diffraction pattern, particle size, and separation potential for olefin‐paraffin gas mixtures. Moreover, the separation potential of ZIF‐4 is compared to commercial adsorbents like carbon molecular sieves and zeolites.