The nitrogen-doped porous carbons/PIM mixed-matrix membranes for CO2 separation

被引：31

作者：

Zhao, Hongyong ^{[1
,2
]}

Feng, Lizhong ^{[1
,2
]}

Ding, Xiaoli ^{[1
,3
]}

Zhao, Yun ^{[1
,2
]}

Tan, Xiaoyao ^{[1
,2
]}

Zhang, Yuzhong ^{[1
,3
]}

机构：

[1] Tianjin Polytech Univ, State Key Lab Separat Membranes & Membrane Proc, Natl Ctr Int Joint Res Separat Membranes, Tianjin 300387, Peoples R China

[2] Tianjin Polytech Univ, Sch Environm & Chem Engn, Tianjin 300387, Peoples R China

[3] Tianjin Polytech Univ, Inst Separat Mat & Proc Control, Sch Mat Sci & Engn, Tianjin 300387, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2018年 / 564卷

基金：

中国国家自然科学基金;

关键词：

CO2; separation; Membrane technology; Polymers of intrinsic microporosity; Mixed-matrix membranes; Nitrogen-doped porous carbons; MOLECULAR-SIEVES; TEMPERATURE; PERFORMANCE; PRECURSORS; POLYMERS; MMMS;

D O I：

10.1016/j.memsci.2018.07.075

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Nitrogen-doped porous carbons (NDPC)/polymer of intrinsic microporosity (PIM) mixed-matrix membranes (MMMs) were fabricated via a thermal treatment of the ionic liquids (ILs)/PIM blending membranes, in which the nitrile- containing ILs reacted and formed the NDPC with three-dimensional-connected frame-works after the thermal post- treatment. The chemical characterization was performed by Fourier transform infrared spectroscopy. The thermal property was investigated by thermo-gravimetric analysis. The average inter-chain distance of the MMMs was evaluated by wide-angle X-ray diffraction. The porous structure was evaluated by low-temperature N-2 adsorption-desorption analysis. The membrane morphology was investigated by field-emission scanning electron microscopy. The gas transport property of the NDPC/PIM MMMs was reported. The relationship between gas transport property and physical properties was also discussed. Compared with the original PIM-1 membrane, the NDPC/PIM MMMs displayed much higher CO2 permeability at the cost of an acceptable, slight reduction in CO2/N-2 selectivity. The outstanding permeation-separation performance for CO2/N-2 exceeds the Robeson upper bound line.

引用

页码：800 / 805

页数：6

共 28 条

[1] ABS copolymer-activated carbon mixed matrix membranes for CO2/CH4 separation [J].