Targeted Synthesis of Anti‐Hydrolysis 2D‐ZIF Laminates with Super‐Hydrophobic Transport Channels via In Situ Phase Transition Strategy

Abstract The design flexibility in the crystalline structure and surface wettability make the zeolitic imidazolate frameworks (ZIFs) an excellent platform for task‐specific applications. However, the key challenge lies in the precise modulation of transport channels, which still suffers from slow diffusion kinetics in nanopores and the loss of hydrophobicity during long‐term operation. Here, a facile structural directing method to render conventional 3D polyhedrons to well‐controlled ZIF nanoplates, and further to super‐hydrophobic laminated material by an in situ phase transition strategy is reported. As exemplified in water transport devices, the integrated ZIFs laminate shows an exceptional anti‐hydrolysis property and super‐hydrophobic transport channels, which warrant remarkable structural stability at fully wet conditions for a time period of at least 3 months, even under acidic conditions and boiling water for 24 h. The simple transformation strategy paves the way for fabrication and regulation of coordinated structures where hydrophobic transport channels are required, and opens a new opportunity for the smart design of advanced structures for water treatment under harsh environments.