NIPS-triggered in situ crystallization of ZIF-8/PES composite membranes for H2/CO2 separation

Zhongmin Feng

doi:10.1016/j.seppur.2026.139546

NIPS-triggered in situ crystallization of ZIF-8/PES composite membranes for H2/CO2 separation

2026-07-31

0

PRE

AI

冯

冯钟敏 (Zhongmin Feng)

Z

Zheng Wang *

L

Li-hua Qi

S

Sijie Yun

C

Chuang Zu

L

Ling Huang

S

Shengping Wang *

H

Huanting Wang

DOI：10.1016/j.seppur.2026.139546

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• The ZIF-8/PES composite membrane extending over the centimeter scale for highly efficient H2/CO2 separation were fabricated via a non-solvent-induced phase separation (NIPS)-trigged in situ crystallization strategy. A dense and thin ZIF-8/PES membrane with a thickness of 540 nm was fabricated on the surface of the PES skin layer. • The fabricated ZIF-8/PES composite membrane under optimized conditions exhibited excellent H2/CO2 selectivity of 72.3 ± 3.35, significantly higher than the 2008 Robeson upper bound, while maintaining a high H2 permeability of 1051.7 ± 30.60 Barrer. • The ZIF-8/PES composite membrane exhibited long-term operational durability for 120 h.

NIPS-triggered in situ crystallization of ZIF-8/PES composite membranes for H2/CO2 separation

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