TY - JOUR
T1 - A Noncovalent π-Stacked Dual-Pore Molecular Crystal for Ethanol/Water and Benzene/Methanol Azeotrope Separation
AU - Meng, Xiang
AU - Zou, Shuixiang
AU - Li, Jiawei
AU - Chen, Cheng
AU - Zhang, Jie
AU - Wu, Mingyan
N1 - Publisher Copyright:
© 2024 Wiley-VCH GmbH.
PY - 2025/1/15
Y1 - 2025/1/15
N2 - Separation of ethanol/water or benzene/methanol azeotrope mixtures presents significant challenges, not only due to the limitations of conventional distillation techniques but also because of the constraints in developing and utilizing of new generation adsorbents. Porous organic molecular frameworks constructed via noncovalent π-interactions are emerging as novel adsorbents with vast potential in gas adsorption and molecular separation. Herein, we report a permanent two-dimensional porous structure, namely TDTBA-1, which consists of two different kinds of pores through π-stacking of a single organic molecule with highly Td symmetry. Activated TDTBA-1 exhibits excellent hydrophobicity, thermal stability, recoverability and high selectivity for ethanol over water, and benzene over methanol. Therefore, activated TDTBA-1 can be used as an efficient stationary phase for the separation of ethanol/water and benzene/methanol azeotropes by high-resolution gas chromatography.
AB - Separation of ethanol/water or benzene/methanol azeotrope mixtures presents significant challenges, not only due to the limitations of conventional distillation techniques but also because of the constraints in developing and utilizing of new generation adsorbents. Porous organic molecular frameworks constructed via noncovalent π-interactions are emerging as novel adsorbents with vast potential in gas adsorption and molecular separation. Herein, we report a permanent two-dimensional porous structure, namely TDTBA-1, which consists of two different kinds of pores through π-stacking of a single organic molecule with highly Td symmetry. Activated TDTBA-1 exhibits excellent hydrophobicity, thermal stability, recoverability and high selectivity for ethanol over water, and benzene over methanol. Therefore, activated TDTBA-1 can be used as an efficient stationary phase for the separation of ethanol/water and benzene/methanol azeotropes by high-resolution gas chromatography.
KW - Azeotrope Separation
KW - Dual-Pore Molecular Crystal
KW - Noncovalent π-interaction
KW - Selective Adsorbent
UR - https://www.scopus.com/pages/publications/85209740157
U2 - 10.1002/anie.202415346
DO - 10.1002/anie.202415346
M3 - Article
C2 - 39543080
AN - SCOPUS:85209740157
SN - 1433-7851
VL - 64
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 3
M1 - e202415346
ER -