Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (3): 352-356.DOI: 10.15541/jim20170163

• Orginal Article • Previous Articles     Next Articles

Charge-switchable Metal-organic Framework for Size/Charge-selective Molecular Inclusions

YUAN Bei-Bei1, 2, 3, ZHOU Bei-Bei1, 2, 3, ZHANG Yue-Biao1, 3, SHI Jian-Lin1, 2, 3   

  1. 1. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;
    2. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China;
    3. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2017-04-07 Published:2018-03-20 Online:2018-03-12
  • About author:YUAN Bei-Bei (1991-), female, candidate of Master degree. E-mail:
  • Supported by:
    Foundation item: National Science Foundation of China (21522105);Recruitment Program for Young Professionals (1000 Young Talent Plan)


Highly size/charge-selective molecular inclusions by a charge-switchable zinc-based metal-organic framework (Zn-MOF) have been achieved, which comprises of two kinds of paddle-wheel building units and four kinds of nanocages. Featuring counter anions floating in the pore and accessible coordination sites on the skeleton, Zn-MOF represents exceptional versatility in taking up anionic dyes by ion-exchange, cationic dyes by charge switch of skeleton, and neutral organic dyes by host-guest interactions. Both size and charge selectivities in the molecular inclusion by the charged nanocages in Zn-MOF provide an efficient way in designing superior porous materials with an enhanced level of compatibility and recognition.


Key words: metal-organic framework, charge-switchability, molecular inclusion, selectivity

CLC Number: