Size-sieving separation of hard-sphere gases at low concentrations through cylindrically porous membranes

Abstract

Membranes are compelling devices for many industrial separation processes, which are all subject to the intrinsic permeability-selectivity tradeoff. A general strategy to enhance separation performance is to reduce the pore...

A Bioinspired Capillary Force‐Induced Driving Strategy for Constructing Ultra‐Low‐Pressure Separation Membranes

“…[25] It is not difficult to find that gravity-driven separation can be easily achieved in separation membranes with large pores used for separating larger-size substances. [26][27][28] However, for finer separation processes, smaller pore-size membranes are required, [29] and the separation cannot be easily achieved by gravity alone. Thus, it is necessary to build an autonomous driving force in the membrane to allow for low or no pressure separation and…”