Controllable preparation of core-shell magnetic covalent-organic framework nanospheres for efficient adsorption and removal of bisphenols in aqueous solution.

We herein report a monomer-mediated in situ growth strategy for the controllable construction of porous nanospheres with a magnetic core and a tunable COF shell. The composite exhibits high stability and excellent performance for the removal of a typical class of endocrine-disrupting chemicals, bisphenol chemicals, in aqueous solution.