Metal organic framework (MOF) membranes have attracted significant attentions in recent years because of their potentials in gas and liquid separations and other applications such as catalysis and chemical sensors, etc. More than half of the MOF membrane publications up to date are related to ZIF-8 system, because of its easy synthesis, relatively high stability, and excellent gas separation performance, which allows many novel ideas to be easily implemented. Extensive studies have shown that ZIF-8 membranes hold great potentials in gas separations, but may face great challenges in liquid separations mainly because of their poor stability. This is also a common observation for other MOF membranes. As such, in this article we use ZIF-8 membrane as a prototype and focus on its development in gas separations for the discussions of the most concerned issues related to membrane commercialization including membrane synthesis, separation performance, stability, process reproducibility, and finally on the opportunities and challenges that MOF membranes may face in industrial applications.

近年来，由于金属有机骨架（MOF）膜在气体和液体分离以及催化和化学传感器等其他应用中的潜力，引起了广泛的关注。迄今为止，超过一半的MOF膜出版物都与ZIF有关-8系统由于易于合成，相对较高的稳定性和出色的气体分离性能，因此可以轻松实现许多新颖的想法。广泛的研究表明，ZIF-8膜在气体分离中具有巨大的潜力，但在液体分离中可能会面临巨大的挑战，主要是因为它们的稳定性差。这也是对其他MOF膜的普遍观察。因此，