We are currently focusing on developing separation protocols that can replace and/or be complementary to conventional separation processes (e.g., distillation, re-crystallization, etc.). Among many candidates, we attempt to fabricate inorganic (including zeolites, and metal organic framework) membranes, which can serve as molecular sieves in separating mixtures. Specifically, the membrane-based separation of industrially attractive mixtures (including CO2/N2 separation) is mainly targeted. The good chemical and mechanical stabilities of inorganic materials make inorganic membranes desirable for industrial separations, while less dependent on operating conditions.