Advances in cyclodextrin polymers adsorbents for separation and enrichment: Classification, mechanism and applications

Over the past few decades, supramolecular chemistry has entered the field of scientific research and attracted extensive attention. Among supramolecular macrocycles, cyclodextrins (CDs) are widely applied in the field of adsorption due to their unique structure and properties. This review focuses on the important role of cyclodextrin polymers (CDPs) as adsorbents in the adsorption of different substances. It covers the category of CDPs adsorbents (including crosslinked CDPs, grafted CDPs, CD-based polyrotaxanes/pseudopolyrotaxanes, and imprinted CDPs), their adsorption mechanism and applications in the adsorption of inorganic metal ions, organic pollutants, and biomacromolecules. Finally, the challenges and future perspectives in relative research fields are discussed. (C) 2021 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

Automated summary

This review discusses the important role of cyclodextrin polymers (CDPs) as adsorbents in the adsorption of different substances, and introduces their adsorption mechanisms and applications in adsorbing inorganic metal ions, organic pollutants, and biomacromolecules. The challenges and future perspectives in this research field are also discussed.