Enhanced C_(3)H_(6)/C_(3)H_(8)separation performance in polysulfone membrane blended with rigid ZIF-8 crystals  

作　　者：Jiayu Luo Luxi Lyu Zongjie Yin Yanying Wei 

机构地区：[1]State Key Laboratory of Pulp and Paper Engineering,School of Chemistry&Chemical Engineering,Guangdong Provincial Key Lab of Green Chemical Product Technology,South China University of Technology,Guangzhou 510640,China [2]Guangzhou Academy of Special Equipment Inspection&Testing,Guangzhou 510000,China [3]Quzhou Membrane Material Innovation Institute,Quzhou 324000,China

出　　处：《Frontiers of Chemical Science and Engineering》2025年第1期89-99,共11页化学科学与工程前沿(英文版)

基　　金：the support from the Natural Science Foundation of China(Grant Nos.22078107,U23A20115);the Natural Science Foundation of Guangdong Province(Grant No.2024A1515012724);Guangzhou Science and Technology Project(Grant No.2024A04J6251).

摘　　要：Metal-organic frameworks have a wide range of applications in the field of membrane separation,but the inherent flexible structure and the difficulty for scale-up hinder their further applications.Herein,the relatively rigid zeolitic imidazolate framework-8 particles prepared under an electric field(E-ZIF-8)were used as the fillers in polysulfone(PSF)to form series of mixed matrix membranes.It was found that the introduction of E-ZIF-8 improves both the C3H6 permeability and C_(3)H_(6)/C_(3)H_(8) selectivity of the membranes.Compared with the bare PSF membrane,the C_(3)H_(6)/C_(3)H_(8) selectivity of the 30 wt%E-ZIF-8@PSF membrane increased by~230%,while the C3H6 permeability was enhanced by~830%.In addition,time and pressure dependence analysis demonstrated that such E-ZIF-8@PSF membranes also exhibited good long-term stability and pressure resistance,offering significant industrialization advantages.

关 键 词：gas separation metal-organic frameworks mixed matrix membranes 

分 类 号：O64[理学—物理化学]