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(a) Illustration of the monomer-mediated in situ growth strategy for the synthesis of core–shell Fe3O4@TpBD nanospheres. (b) Adsorption isotherms of BPA on Fe3O4@TpBD. (c) Illustration for the mechanism of π-π interaction and hydrogen bonding between BPA/BPAF and TpBD. Reprinted with permission from [57]. Copyright (2017) The Royal Society of Chemistry.
