Details der Publikation - Integration of natural clay into cellulose membrane for efficient $ CO_{2} $/$ N

Integration of natural clay into cellulose membrane for efficient $ CO_{2} $/$ N_{2} $ separation

Abstract It is important to design gas separation membrane from natural resources such as clay and cellulose. In this work, natural clay attapulgite (ATP) nanorods were integrated into cellulose nanofibers (CNFs) to fabricate organic/inorganic composite membranes. The microporous ATP nanorods were well-dispersed in the CNF suspension owing to the sufficient electrostatic repulsion. The ATPCNF thin layer was deposited on the porous Nylon support via a simple vacuum filtration process. Such prepared ATP@CNF membranes were effective for $ CO_{2} $/$ N_{2} $ separation as the non-selective interfacial voids/defects formed by ATP nanorods were successfully sealed by the flexible CNF chains. With an ATP loading of ca. 50.0 wt%, the optimal AC-2 membrane presented a $ CO_{2} $ permeability of 65.5 Barrer with a $ CO_{2} $/$ N_{2} $ ideal selectivity of 43.7. The separation mechanism was mainly attributed to the molecular-sieving ability of porous ATP nanorods and gas barrier property of CNFs. This study provided a novel route for the design of all-natural separation membranes by interfacial engineering routes..

Medienart:	E-Artikel

Erscheinungsjahr:	2022
Erschienen:	2022

Enthalten in:	Zur Gesamtaufnahme - volume:29
Enthalten in:	Cellulose - 29(2022), 3 vom: 10. Jan., Seite 1873-1881

Sprache:	Englisch

Beteiligte Personen:	Wang, Zhongguo [VerfasserIn] Li, Mengjie [VerfasserIn] Zhang, Xiong-Fei [VerfasserIn] Zhou, Yichen [VerfasserIn] Yao, Jianfeng [VerfasserIn]

Links:	Volltext [lizenzpflichtig]

BKL:	35.63$jKohlenhydrate$XOrganische Chemie 35.77$jKohlenhydrate$XBiochemie
Themen:	Attapulgite Cellulose nanofiber Gas separation Membrane

Anmerkungen:	© The Author(s), under exclusive licence to Springer Nature B.V. 2022

doi:	10.1007/s10570-021-04407-3

funding:
Förderinstitution / Projekttitel:

PPN (Katalog-ID):	OLC2129484611

Internformat


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520			\|a Abstract It is important to design gas separation membrane from natural resources such as clay and cellulose. In this work, natural clay attapulgite (ATP) nanorods were integrated into cellulose nanofibers (CNFs) to fabricate organic/inorganic composite membranes. The microporous ATP nanorods were well-dispersed in the CNF suspension owing to the sufficient electrostatic repulsion. The ATPCNF thin layer was deposited on the porous Nylon support via a simple vacuum filtration process. Such prepared ATP@CNF membranes were effective for $ CO_{2} $/$ N_{2} $ separation as the non-selective interfacial voids/defects formed by ATP nanorods were successfully sealed by the flexible CNF chains. With an ATP loading of ca. 50.0 wt%, the optimal AC-2 membrane presented a $ CO_{2} $ permeability of 65.5 Barrer with a $ CO_{2} $/$ N_{2} $ ideal selectivity of 43.7. The separation mechanism was mainly attributed to the molecular-sieving ability of porous ATP nanorods and gas barrier property of CNFs. This study provided a novel route for the design of all-natural separation membranes by interfacial engineering routes.
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Integration of natural clay into cellulose membrane for efficient $ CO_{2} $/$ N_{2} $ separation

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