| abstract |
The invention provides a cyclodextrin supramolecular polymer/Fe 3 O 4 magnetic nanoparticle composite body, which is first cross-linked with β-cyclodextrin and pyromellitic dianhydride to synthesize a cyclodextrin Refined supramolecular polymer (β‑CDSP); β‑CDSP was co-precipitated with FeCl 3 ·6H 2 O and FeCl 2 ·4H 2 O in one pot under alkaline conditions to obtain a complex. Characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA), it was confirmed that β-CDSP was grafted on Fe 3 O 4 magnetic nanoparticles. The complex has low synthesis cost, is environmentally friendly and non-toxic, has abundant hydroxyl groups and free carboxyl groups and has good magnetic properties, and can be used as an adsorption material for adsorbing cationic triphenylmethane dye pollutants. Using malachite green as a model molecule to study the adsorption performance, it shows that the complex has a good adsorption effect on malachite green, and has potential application prospects in the adsorption of environmental pollutants. |