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Carbonic anhydrase inspired poly(N-vinylimidazole)/zeolite Zn-β hybrid membranes for CO₂ capture

Author:
Liu, Yanni, Wang, Zhi, Shi, Mengqi, Li, Nan, Zhao, Song, Wang, Jixiao
Source:
Chemical communications 2018 v.54 no.52 pp. 7239-7242
ISSN:
1364-548X
Subject:
asymmetric membranes, carbon dioxide, carbonate dehydratase, chemical reactions, hydrophobicity, nitrogen, ultrafiltration, zeolites, zinc
Abstract:
A carbonic anhydrase inspired material was developed by incorporating Zn(ii) ion exchanged zeolite β into poly(N-vinylimidazole) solution. The hydrophobic zeolite channels were designed to imitate the function of the hydrophobic pocket in carbonic anhydrase. The composite membrane prepared by casting the material on a polysulfone ultrafiltration membrane showed a high CO₂ permeance of 4620 GPU with a high CO₂/N₂ selectivity of 224.
Agid:
6175359