纳米片
膜
选择性
渗透
纳米技术
材料科学
纳米颗粒
分子
分离过程
化学工程
化学
色谱法
有机化学
生物化学
工程类
催化作用
作者
Wendong Xing,Yilin Wu,Jian Lu,Chunxiang Li,Yongsheng Yan,Linli Xu
标识
DOI:10.1016/j.memsci.2024.122962
摘要
Two-dimensional (2D) materials-based membranes with artificial transfer channels have shown significant potential for selective separation. However, the challenges such as uncontrollable interlayer spacing and undesirable molecular sieving capabilities of 2D channels have impeded their further application in separation. Inspired by biological selectivity transport channels with proper steric and affinity sites, herein we have designed biomimetic 2D selective transport channels based on a ZIF-L nanosheet membrane. In this design, the UiO-66-NH2 nanoparticles tune the appropriate interlayer confinement and compensate for laminate framework defects of 2D selectivity transport channels, the artificial imprinting recognition sites establishes the essential chemical environment for specific separation. As a result, the obtained MOFs nanosheet based membranes with imprinted recognition sites (MN-IMs) exhibited enhanced permeation flux (J=1.0847×10-3 and 1.0423×10-3 mg min-1 cm-2) and permselectivity (α=3.77 and 4.10), outperforming state-of-the-art similar technologies. Besides, the composite MOFs demonstrated good photoinduced self-recovery ability, which also enables MN-IMs to have long-lasting selective separation performance (the separation efficiency is 90.76%) in the continuous separation process. This study introduces a novel design strategy for developing sophisticated 2D materials-based membranes and offers new insights into the precise separation of specific molecules.
科研通智能强力驱动
Strongly Powered by AbleSci AI