Porous Extended Biphen[3]arene-Based Polymers for Highly Effective Pesticide Capture in Aqueous Solution

Pesticides with acute and persistent toxicity are extensively applied in agriculture production, posing serious safety concerns to ecosystems. To address this emerging environment problem, porous extended biphen[3]arene-based polymers (P-ExBP3Ps) were developed as a supramolecular adsorbent for several representative pesticides. Such material exhibited effective and universal sequestration performance against pesticides in the aqueous phase, attributed to a synergistic effect between physical adsorption by the mesopores of the cross-linked polymer and molecular recognition by the macrocyclic component. More interestingly, such a supramolecular adsorbent exhibited application potential for flow-through pesticide decontamination and could be reused 5 times with no obvious loss of removal efficiency.