Progress in the Construction of β -Cyclodextrin-Fe 3 O 4 Supramolecular Systems and Their Application

The construction and application of β-cyclodextrin-Fe3O4 supramolecular systems at present have been reviewed in detail, especially for the application of β-cyclodextrin-Fe3O4 supramolecular systems constructed covalently in the environ- mental pollutants adsorption, drug loading and releasing, sensor construction and detection application, separation and cataly- sis. In all of the section mentioned above, the construction and property of the β-cyclodextrin-Fe3O4 supramolecular systems were discussed systematically which were classified according to the linking groups between β-cyclodextrin and Fe3O4. It was pointed out that the β-cyclodextrin-Fe3O4 supramolecular systems possessed the ability to form inclusion complex with guest molecules, weak catalytic activity and substrate recognition property of β-cyclodextrin unit and the magnetic property of Fe3O4 which could be recovered easily, simultaneously. It was also pointed out that the immobilization of β-cyclodextrin on Fe3O4 nanoparticles to construct heterogeneous β-cyclodextrin-Fe3O4 supramolecular biomimetic catalytic systems will be one of the focus in the construction of nanoscale supramolecular biomimetic catalysts in the future. Keywords cyclodextrin; Fe3O4; supramolecular systems; construction; application