Unknown

Dataset Information

0

Ionic Covalent Organic Framework-Based Membranes for Selective and Highly Permeable Molecular Sieving.


ABSTRACT: Two-dimensional covalent organic frameworks (COFs) with uniform pores and large surface areas are ideal candidates for constructing advanced molecular sieving membranes. However, a fabrication strategy to synthesize a free-standing COF membrane with a high permselectivity has not been fully explored yet. Herein, we prepared a free-standing TpPa-SO3H COF membrane with vertically aligned one-dimensional nanochannels. The introduction of the sulfonic acid groups on the COF membrane provides abundant negative charge sites in its pore wall, which achieve a high water flux and an excellent sieving performance toward water-soluble drugs and dyes with different charges and sizes. Furthermore, the COF membrane exhibited long-term stability, fouling resistance, and recyclability in rejection performance. We envisage that this work provides new insights into the effect of ionic ligands on the design of a broad range of COF membranes for advanced separation applications.

SUBMITTER: Liu X 

PROVIDER: S-EPMC10835733 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature

altmetric image

Publications

Ionic Covalent Organic Framework-Based Membranes for Selective and Highly Permeable Molecular Sieving.

Liu Xin X   Wang Jinrong J   Shang Yuxuan Y   Yavuz Cafer T CT   Khashab Niveen M NM  

Journal of the American Chemical Society 20240117 4


Two-dimensional covalent organic frameworks (COFs) with uniform pores and large surface areas are ideal candidates for constructing advanced molecular sieving membranes. However, a fabrication strategy to synthesize a free-standing COF membrane with a high permselectivity has not been fully explored yet. Herein, we prepared a free-standing TpPa-SO<sub>3</sub>H COF membrane with vertically aligned one-dimensional nanochannels. The introduction of the sulfonic acid groups on the COF membrane provi  ...[more]

Similar Datasets

| S-EPMC11654673 | biostudies-literature
| S-EPMC8159406 | biostudies-literature
| S-EPMC6992836 | biostudies-literature
| S-EPMC6889836 | biostudies-literature
| S-EPMC11835272 | biostudies-literature
| S-EPMC8536662 | biostudies-literature
| S-EPMC4838892 | biostudies-literature
| S-EPMC4838892 | biostudies-literature
| S-EPMC9174484 | biostudies-literature
| S-EPMC6506600 | biostudies-literature