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Pebax‐Based Membrane Filled with Two‐Dimensional Mxene Nanosheets for Efficient CO 2 Capture
Author(s) -
Liu Guozhen,
Cheng Long,
Chen Guining,
Liang Feng,
Liu Gongping,
Jin Wanqin
Publication year - 2020
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201901433
Subject(s) - permeance , membrane , selectivity , materials science , chemical engineering , polyamide , gas separation , copolymer , polymer , adsorption , matrix (chemical analysis) , polymer chemistry , chemistry , composite material , organic chemistry , catalysis , biochemistry , engineering
Mixed matrix membranes (MMMs) made from inorganic fillers and polymers is a kind of promising candidate for gas separation. In this work, two‐dimensional MXene nanosheets were synthesized and incorporated into a polyether‐polyamide block copolymer (Pebax) matrix to fabricate MMM for CO 2 capture. The physicochemical properties of MXene nanosheets and MXene/Pebax membranes were studied systematically. The introduction of MXene nanosheets provided additional molecular transport channels and meanwhile enhanced the CO 2 adsorption capacity, thereby enhancing both the CO 2 peremance and CO 2 /N 2 selectivity of Pebax membrane. The optimized MXene/Pebax membrane with a MXene loading of 0.15 wt % displayed a high separation performance with a CO 2 permeance of 21.6 GPU and a CO 2 /N 2 selectivity of 72.5, showing potential application in CO 2 capture.