从 ZIF-8 膜中回收空气中的氙气。
Recovery of xenon from air over ZIF-8 membranes.
机构信息
Chemical and Biological Engineering Department, Colorado School of Mines, Golden, CO 80401, USA.
出版信息
Chem Commun (Camb). 2018 Aug 9;54(65):8976-8979. doi: 10.1039/c8cc04154g.
PMID:29998232
Abstract
Continuous ZIF-8 membranes effectively separated air/Xe gas mixtures. These membranes showed air permeances as high as 3.94 × 10-8 mol m-2 s-1 Pa-1 and separation selectivities as high as 12.4 for an air/Xe molar feed composition of 9 : 1. These membranes separated air from Xe via molecular sieving, preferential adsorption, and diffusivity differences.
摘要
连续的 ZIF-8 膜有效地分离了空气/Xe 气体混合物。这些膜的空气透过率高达 3.94×10-8 mol m-2 s-1 Pa-1，分离选择性高达 12.4，对于空气/Xe 摩尔进料组成为 9∶1。这些膜通过分子筛、优先吸附和扩散系数差异从空气中分离出 Xe。
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