Organic solvent nanofiltration polymeric membranes: Recent progress, applications, challenges, and perspectives

doi:10.1016/j.cjche.2024.06.032

Abstract

Abstract: Organic solvent nanofiltration (OSN) is an efficient, low-energy and environmentally friendly phase-free separation process. Obviously, the core of OSN lies in the fabrication of solvent-resistant nanofiltration membranes. Although membrane materials reported in the literature such as 2D membranes, porous organic cages, etc. have the potential for ultra-high performance, polymeric membranes provide key advantages in mass production and processability. Therefore, this review focuses on polymeric materials for OSN. This review summarizes the recent progress of polymeric materials, including emerging and traditional polymeric membranes. Then, a summary of recent progress about strategies developed for perm-selective nanofilms are presented, followed by a brief overview of commercial membrane technology for OSN. Finally, major challenges of OSN and future research directions are presented. Close interaction between the academic research and practical application would help improve greener and more sustainable manufacturing processes.

Key words: Organic solvent nanofiltration (OSN), Molecular separation, Porous materials, Solvent-resistant polymeric membranes, Commercial applications

摘要： Organic solvent nanofiltration (OSN) is an efficient, low-energy and environmentally friendly phase-free separation process. Obviously, the core of OSN lies in the fabrication of solvent-resistant nanofiltration membranes. Although membrane materials reported in the literature such as 2D membranes, porous organic cages, etc. have the potential for ultra-high performance, polymeric membranes provide key advantages in mass production and processability. Therefore, this review focuses on polymeric materials for OSN. This review summarizes the recent progress of polymeric materials, including emerging and traditional polymeric membranes. Then, a summary of recent progress about strategies developed for perm-selective nanofilms are presented, followed by a brief overview of commercial membrane technology for OSN. Finally, major challenges of OSN and future research directions are presented. Close interaction between the academic research and practical application would help improve greener and more sustainable manufacturing processes.

关键词: Organic solvent nanofiltration (OSN), Molecular separation, Porous materials, Solvent-resistant polymeric membranes, Commercial applications

Qianwen Su, Xiuming Zhang, Daohui Zhao, Ming Li. Organic solvent nanofiltration polymeric membranes: Recent progress, applications, challenges, and perspectives[J]. Chinese Journal of Chemical Engineering, 2025, 82(6): 196-208.

Qianwen Su, Xiuming Zhang, Daohui Zhao, Ming Li. Organic solvent nanofiltration polymeric membranes: Recent progress, applications, challenges, and perspectives[J]. 中国化学工程学报, 2025, 82(6): 196-208.

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