RT journal article
T1 2D Vermiculite Nanolaminated Membranes for Efficient Organic Solvent Nanofiltration
A1 Wang, Wensen
A1 Hao, Xishun
A1 Yan, Youguo
A1 Sun, Rong
A1 Petit, Eddy
A1 Moderne, Mathilde
A1 Li, Ji
A1 Liu, Jiefeng
A1 Wu, Huali
A1 Qi, Kun
A1 Zamora-Ledezma, Camilo
A1 Narváez-Muñoz, Christian
A1 Hassani, Camille Bakkali
A1 Lajaunie, Luc Cyrille Jacques
A1 Miele, Philippe
A1 Salameh, Chrystelle
A1 Zeng, Zhiyuan
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 2D materials
K1 cations intercalations
K1 nanolaminated membranes
K1 non-covalent functionalization
K1 organic solvent nanofiltration
AB Membrane separation technology has found widespread application in molecular sieving and water reclamation. Its use in organic solvent nanofiltration (OSN) has been limited by the modest permeation rates and stability of existing membranes. In this study, 2D clay nanolaminated membranes are engineered, derived from the stacking of exfoliated vermiculite nanosheets, as a potential solution for OSN. The as-synthesized clay membrane displayed limited stability in both water and solvents due to rapid hydration or solvation of the nanosheets. To enhance the membrane's stability and sieving capabilities, cations of various valences (K+, Na+, Mg2+, Ca2+, Fe3+) are intercalated into the interlayer of the clay nanosheets. The resulting cation-treated clay membranes display considerable enhancement in structural stability in both aqueous and organic media. Subsequently, the solvent transport behavior and separation performance of these clay membranes are evaluated and described by molecular dynamic simulation and experiments. It is identified that Fe-intercalated nanolaminates demonstrate controllable stacking order, resulting in enhanced sieving performance with a rejection rate of over 95% for Methyl Orange and a methanol permeation rate of ≈165 L m−2 h−1 bar−1 [LMHB]. The findings of this work pave the way for the practical applications of 2D nanolaminated clay membranes in OSN.
PB John Wiley and Sons Inc
SN 1616-3028
YR 2024
FD 2024
LK http://hdl.handle.net/10498/36068
UL http://hdl.handle.net/10498/36068
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 05-nov-2026