Self-Assembled Fe-TAML-Based Magnetic Nanostructures for Rapid and Sustainable Destruction of Bisphenol A.

This study focused on constructing iron(III)-tetraamidomacrocyclic ligand (Fe-TAML)-based magnetic nanostructures via a surfactant-assisted self-assembly (SAS) method to enhance the reactivity and recoverability of Fe-TAML activators, which have been widely employed to degrade various organic contaminants. We have fabricated Fe-TAML-based magnetic nanomaterials (Fe-TAML/CTAB@FeO, CTAB refers to cetyltrimethylammonium bromide) by adding a mixed solution of Fe-TAML and NH·HO into another mixture containing CTAB, FeCl and FeCl solutions. The as-prepared Fe-TAML/CTAB@FeO nanocomposite showed relative reactivity compared with free Fe-TAML as indicated by decomposition of bisphenol A (BPA). Moreover, our results demonstrated that the Fe-TAML/CTAB@FeO composite can be separated directly from reaction solutions by magnet adsorption and reused for at least four times. Therefore, the efficiency and recyclability of self-assembled Fe-TAML/CTAB@FeO nanostructures will enable the application of Fe-TAML-based materials with a lowered expense for environmental implication.