Citation: Si-Hua Liu, Jun-Hao Zhou, Jian-Ke Sun. Interconnecting zero-dimensional porous organic cages into sub-8 nm nanofilm for bio-inspired separation[J]. Chinese Journal of Structural Chemistry, ;2024, 43(7): 100312. doi: 10.1016/j.cjsc.2024.100312 shu

Interconnecting zero-dimensional porous organic cages into sub-8 nm nanofilm for bio-inspired separation

Recently, we introduced a sharp oil/water-free interface to suppress the intrinsic van der Waals packing and direct the 2D self-assembly of POCs. The pre-organized cage layers were then in-situ crosslinked into continuous ultrathin cage nanofilms less than 8 nm in thickness. These networked cage nanofilms exhibit outstanding intrinsic water permeability at the 10−5 cm2 s−1 scale, which is 1–2 orders of magnitude higher than that of traditional polymeric membranes, and comparable to that of other nanofluidic membranes such as MOFs, COFs, and GO membranes. Molecular dynamics simulations revealed 1D water chains within the networked cage, mirroring features found in biological water channels. Moreover, the channel microenvironments, including hydrophilicity and steric hindrance, can be manipulated by a simple anion exchange strategy. The resulting “smart” membrane can even perform graded molecular sieving by ionically associating light-responsive anions to cage windows. As a proof-of-concept, continuous separation of three organic dyes in a single-stage, single-membrane process was exemplified. This achievement holds great promise for advancing the development of bio-inspired ultrathin nanofilms, particularly in the realms of smart separation technologies and nanofluidic devices.
1. [1]
  Jiahao Li , Guinan Chen , Chunhong Chen , Yuanyuan Lou , Zhihao Xing , Tao Zhang , Chengtao Gong , Yongwu Peng . Modulated synthesis of stoichiometric and sub-stoichiometric two-dimensional covalent organic frameworks for enhanced ethylene purification. Chinese Chemical Letters, 2025, 36(1): 109760-. doi: 10.1016/j.cclet.2024.109760
2. [2]
  Yuting Wu , Haifeng Lv , Xiaojun Wu . Design of two-dimensional porous covalent organic framework semiconductors for visible-light-driven overall water splitting: A theoretical perspective. Chinese Journal of Structural Chemistry, 2024, 43(11): 100375-100375. doi: 10.1016/j.cjsc.2024.100375
3. [3]
  Jia-Ru Li , Ning Li , Li-Ling He , Jun He . Fluorine-functionalized zirconium-organic cages for efficient photocatalytic oxidation of thioanisole. Chinese Chemical Letters, 2025, 36(1): 109934-. doi: 10.1016/j.cclet.2024.109934
4. [4]
  Jiayi Lu , Yizhang Li , Hao Jiang , Zhiwen Zhu , Fengru Zheng , Qiang Sun . Preparing sub-monolayer metals with continuous coverage spread for high-throughput growth of metal-organic frameworks. Chinese Chemical Letters, 2025, 36(3): 110394-. doi: 10.1016/j.cclet.2024.110394
5. [5]
  Brandon Bishop , Shaofeng Huang , Hongxuan Chen , Haijia Yu , Hai Long , Jingshi Shen , Wei Zhang . Artificial transmembrane channel constructed from shape-persistent covalent organic molecular cages capable of ion and small molecule transport. Chinese Chemical Letters, 2024, 35(11): 109966-. doi: 10.1016/j.cclet.2024.109966
6. [6]
  Zhefei Hu , Jingwen Liao , Jiawen Zhou , Lulu Zhao , Yanjuan Liu , Yuefei Zhang , Wei Chen , Sheng Tang . A new green approach to synthesizing MIP-202@porous silica microspheres for positional isomer/enantiomer/hydrophilic separation. Chinese Chemical Letters, 2025, 36(1): 109985-. doi: 10.1016/j.cclet.2024.109985
7. [7]
  Ziyi Zhu , Yang Cao , Jun Zhang . CO2-switched porous metal-organic framework magnets. Chinese Journal of Structural Chemistry, 2024, 43(2): 100241-100241. doi: 10.1016/j.cjsc.2024.100241
8. [8]
  Chao Liu , Chao Jia , Shi-Xian Gan , Qiao-Yan Qi , Guo-Fang Jiang , Xin Zhao . A luminescent one-dimensional covalent organic framework for organic arsenic sensing in water. Chinese Chemical Letters, 2024, 35(11): 109750-. doi: 10.1016/j.cclet.2024.109750
9. [9]
  Muhammad Riaz , Rakesh Kumar Gupta , Di Sun , Mohammad Azam , Ping Cui . Selective adsorption of organic dyes and iodine by a two-dimensional cobalt(II) metal-organic framework. Chinese Journal of Structural Chemistry, 2024, 43(12): 100427-100427. doi: 10.1016/j.cjsc.2024.100427
10. [10]
  Xinyi Cao , Yucheng Jin , Hailong Wang , Xu Ding , Xiaolin Liu , Baoqiu Yu , Xiaoning Zhan , Jianzhuang Jiang . A tetraaldehyde-derived porous organic cage and covalent organic frameworks: Syntheses, structures, and iodine vapor capture. Chinese Chemical Letters, 2024, 35(9): 109201-. doi: 10.1016/j.cclet.2023.109201
11. [11]
  Xi Zhou , Shengyao Wang . Dynamic two-dimensional covalent organic frameworks via ‘wine rack' design. Chinese Journal of Structural Chemistry, 2025, 44(4): 100464-100464. doi: 10.1016/j.cjsc.2024.100464
12. [12]
  Ting Shi , Ziyang Song , Yaokang Lv , Dazhang Zhu , Ling Miao , Lihua Gan , Mingxian Liu . Hierarchical porous carbon guided by constructing organic-inorganic interpenetrating polymer networks to facilitate performance of zinc hybrid supercapacitors. Chinese Chemical Letters, 2025, 36(1): 109559-. doi: 10.1016/j.cclet.2024.109559
13. [13]
  Xinghong Cai , Qiang Yang , Yao Tong , Lanyin Liu , Wutang Zhang , Sam Zhang , Min Wang . AlO₂: A novel two-dimensional material with a high negative Poisson's ratio for the adsorption of volatile organic compounds. Chinese Chemical Letters, 2025, 36(2): 109586-. doi: 10.1016/j.cclet.2024.109586
14. [14]
  Fahui Xiang , Lu Li , Zhen Yuan , Wuji Wei , Xiaoqing Zheng , Shimin Chen , Yisi Yang , Liangji Chen , Zizhu Yao , Jianwei Fu , Zhangjing Zhang , Shengchang Xiang . Enhanced C₂H₂/CO₂ separation in tetranuclear Cu(Ⅱ) cluster-based metal-organic frameworks by adjusting divider length of pore space partition. Chinese Chemical Letters, 2025, 36(3): 109672-. doi: 10.1016/j.cclet.2024.109672
15. [15]
  Ke-Ai Zhou , Lian Huang , Xing-Ping Fu , Li-Ling Zhang , Yu-Ling Wang , Qing-Yan Liu . Fluorinated metal-organic framework for methane purification from a ternary CH4/C2H6/C3H8 mixture. Chinese Journal of Structural Chemistry, 2023, 42(11): 100172-100172. doi: 10.1016/j.cjsc.2023.100172
16. [16]
  Juan Guo , Mingyuan Fang , Qingsong Liu , Xiao Ren , Yongqiang Qiao , Mingju Chao , Erjun Liang , Qilong Gao . Zero thermal expansion in Cs₂W₃O₁₀. Chinese Chemical Letters, 2024, 35(7): 108957-. doi: 10.1016/j.cclet.2023.108957
17. [17]
  Zhongsen Wang , Lijun Qiu , Yunhua Huang , Meng Zhang , Xi Cai , Fanyu Wang , Yang Lin , Yanbiao Shi , Xiao Liu . Alcohothermal synthesis of sulfidated zero-valent iron for enhanced Cr(Ⅵ) removal. Chinese Chemical Letters, 2024, 35(7): 109195-. doi: 10.1016/j.cclet.2023.109195
18. [18]
  Yajun Hou , Chuanzheng Zhu , Qiang Wang , Xiaomeng Zhao , Kun Luo , Zongshuai Gong , Zhihao Yuan . ~2.5 nm pores in carbon-based cathode promise better zinc-iodine batteries. Chinese Chemical Letters, 2024, 35(5): 108697-. doi: 10.1016/j.cclet.2023.108697
19. [19]
  Deli Chen , Jiawen Li , Xudong Xu , Zhaocui Sun , Yun Yang , Minghui Xu , Hanqiao Liang , Junshan Yang , Hui Meng , Guoxu Ma , Jianhe Wei . Plant-microbial interactions inspired the discovery of novel sesquiterpenoid dimeric skeletons of hidden natural products from Hibiscus tiliaceus. Chinese Chemical Letters, 2024, 35(10): 109451-. doi: 10.1016/j.cclet.2023.109451
20. [20]
  Saadullah Khattak , Hong-Tao Xu , Jianliang Shen . Bio-electronic bandage: Self-powered performances to accelerate intestinal wound healing. Chinese Chemical Letters, 2024, 35(12): 110210-. doi: 10.1016/j.cclet.2024.110210

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(199)
HTML views(1)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return