High Performance of PIM-1/ZIF-8 Composite Membranes for O2/N2 Separation

被引：41
作者：
Liu, Yuancheng [1 ]
Zhang, Jianxin [1 ]
Tan, Xiaoyao [1 ]
机构：
[1] Tianjin Polytech Univ, Sch Chem & Chem Engn, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China
来源：
ACS OMEGA | 2019年 / 4卷 / 15期
基金：
中国国家自然科学基金;
关键词：
MIXED MATRIX MEMBRANES; GAS PERMEATION PARAMETERS; METAL-ORGANIC FRAMEWORKS; INTRINSIC MICROPOROSITY; POLYMER; PIM-1; COMPATIBILITY; INTERFACE;
D O I：
10.1021/acsomega.9b02363
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This work reports the preparation, characterization, and O-2/N-2 separation properties of composite membranes based on the polymer of intrinsic microporosity (PIM-1) and the zeolitic imidazolate framework (ZIF-8). Especially, the composite membranes were prepared by growing ZIF-8 nanoparticles on one side of the PIM-1 membrane in methanol. Fourier transform infrared spectroscopy and thermo-gravimetric analysis indicated that there is no strong chemical interaction between ZIF-8 nanoparticles and PIM-1 chains. Scanning electron microscopy images showed that ZIF-8 nanoparticles adhere well to the PIM-1 membrane surface. The pure-gas permeation results confirmed that growth of ZIF-8 on the PIM-1 membrane can enhance the performance of O-2/N(2 )separation. Particularly, theO(2)/N-2 separation performance of the PIM-1/ZIF-8-7 composite membrane exceeds the Robeson upper bound line.
引用
收藏
页码：16572 / 16577
页数：6
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