Chemical Research in Chinese Universities ›› 2023, Vol. 39 ›› Issue (2): 310-317.doi: 10.1007/s40242-022-2244-1

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An Allochroic Molecular Cage Switch for Sensing and Capturing Organic Pollutants

JIA Yin1, FENG Fanda2, SONG Xinyu1, SHI Zhiqiang1, SUN Lin1, JIANG Ruiyu1, TANG Lanqin1, ZHANG Lei1   

  1. 1. Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, Yancheng Institute of Technology, Yancheng 224051, P. R. China;
    2. State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
  • Received:2022-07-20 Online:2023-04-01 Published:2023-03-16
  • Contact: TANG Lanqin, ZHANG Lei E-mail:lanqin_tang@163.com;lzhang@ycit.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (Nos. 21773114, 21603183), the Natural Science Foundation of Jiangsu Province, China(No.BK20191024), the Natural Science Foundation of the Jiangsu Higher Education Institutions, China(No.20KJB530015), the Research Innovation Program for College Graduates of Jiangsu Province, China(No.KYCX21_XZ002), the Fund of Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province, China(No.JBGS004) and the Funding for School-level Research Projects of Yancheng Institute of Technology, China.

Abstract: The adsorption method is considered to be one of the most promising organic pollutants emission reduction strategies. The design and synthesis of high-performance porous adsorbents are one of the most important but challenging works. In this work, we constructed a new class of porous molecular cage switches by a simple reaction using phenolphthalein as the raw material. The molecular cage switches displayed interesting on-off behavior towards organic guests, which is highly responding to organic pollutants with rapid color change and is also able to adsorb these organic pollutants through an open-to-close pathway. This molecular cage switch also has excellent regenerative cycling properties and water resistance, which is expected to be employed in the handling of organic pollutants in the future.

Key words: Porous organic cage, Molecular switch, Phenolphthalein, Organic pollutant, Sensor