Nanoconfined Zeolitic Imidazolate Framework Membranes with Composite Layers of Nearly Zero Thickness

作者：Wang, Naixin^*; Li, Xiaoting; Wang, Lin; Zhang, Lilong; Zhang, Guojun; Ji, Shulan

来源：ACS Applied Materials & Interfaces, 2016, 8(34): 21979-21983.

DOI：10.1021/acsami.6b08581

• nanoconfined membrane
• ZIF membrane
• polymeric substrate
• zero thickness
• nanofiltration
• high flux

The key to preparing dense composite membranes is reducing the thickness of the composite layer with stable separation performance. Herein, we report a nanoconfined composite membrane prepared by in situ growth,of Zeolitic Imidazolate Framework (ZIF) nanocrystals in the nanoporous layer of the substrate via a fine-tuning contra-diffusion method. The thickness of the composite layer on the membrane surface was nearly zero. The formed ZIF nanoconfined composite membranes showed state-of-art flux and high stability in removing dyes from water. This new strategy is expected to offer great opportunities for the potential practical application of polymer-supported metal organic framework (MOP) composite membranes.

• 出版日期2016-8-31
• 单位北京工业大学