TY - JOUR

T1 - Ultrathin Two-Dimensional Porous Fullerene Membranes for Ultimate Organic Solvent Separation

AU - Chen, Xiaofang

AU - Mu, Yifang

AU - Jin, Chunxin

AU - Wei, Yayu

AU - Hao, Jinlin

AU - Wang, Huanting

AU - Caro, Jürgen

AU - Huang, Aisheng

N1 - Funding Information: Financial supports by the National Key Research and Development Program of China (2022YFB3805502), and the National Natural Science Foundation of China (22208105 and 22378132). The authors thank Xiaojing Sun and Yuan Yuan for their technical support from East China Normal University.

PY - 2024/4/18

Y1 - 2024/4/18

N2 - Two-dimensional (2D) materials with high chemical stability have attracted intensive interest in membrane design for the separation of organic solvents. As a novel 2D material, polymeric fullerenes (C60)∞ with distinctive properties are very promising for the development of innovative membranes. In this work, we report the construction of a 2D (C60)∞ nanosheet membrane for organic solvent separation. The pathways of the (C60)∞ nanosheet membrane are constructed by sub-1-nm lateral channels and nanoscale in-plane pores created by the depolymerization of the (C60)∞ nanosheets. Attributing to ordered and shortened transport pathways, the ultrathin porous (C60)∞ membrane is superior in organic solvent separation. The hexane, acetone, and methanol fluxes are up to 1146.3±53, 900.4±41, and 879.5±42 kg ⋅ m−2 ⋅ h−1, respectively, which are up to 130 times higher than those of the state-of-the-art membranes with similar dye rejection. Our findings demonstrate the prospect of 2D (C60)∞ as a promising nanofiltration membrane in the separation of organic solvents from macromolecular compounds such as dyes, drugs, hormones, etc.

AB - Two-dimensional (2D) materials with high chemical stability have attracted intensive interest in membrane design for the separation of organic solvents. As a novel 2D material, polymeric fullerenes (C60)∞ with distinctive properties are very promising for the development of innovative membranes. In this work, we report the construction of a 2D (C60)∞ nanosheet membrane for organic solvent separation. The pathways of the (C60)∞ nanosheet membrane are constructed by sub-1-nm lateral channels and nanoscale in-plane pores created by the depolymerization of the (C60)∞ nanosheets. Attributing to ordered and shortened transport pathways, the ultrathin porous (C60)∞ membrane is superior in organic solvent separation. The hexane, acetone, and methanol fluxes are up to 1146.3±53, 900.4±41, and 879.5±42 kg ⋅ m−2 ⋅ h−1, respectively, which are up to 130 times higher than those of the state-of-the-art membranes with similar dye rejection. Our findings demonstrate the prospect of 2D (C60)∞ as a promising nanofiltration membrane in the separation of organic solvents from macromolecular compounds such as dyes, drugs, hormones, etc.

KW - 2D materials

KW - 2D membrane

KW - fullerene

KW - organic solvent separation

KW - polymeric fullerene (C)

UR - http://www.scopus.com/inward/record.url?scp=85186581574&partnerID=8YFLogxK

U2 - 10.1002/anie.202401747

DO - 10.1002/anie.202401747

M3 - Article

AN - SCOPUS:85186581574

VL - 63

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 18

M1 - e202401747

ER -