Microwave-Assisted Synthesis of Amino/Imino-Linked Porous Organic Polymers for Rapid Pesticide Removal

This study presents the microwave-assisted synthesis of amino/imino-linked porous organic polymers (MPA-TPA/BDA-POPs) for the efficient removal of triazole fungicides, specifically triadimefon (TRI) and flutriafol (FLU), from aqueous solutions. By replacing traditional solvothermal methods with microwave irradiation, the synthesis time was significantly reduced from 3 days to 3 h, enhancing efficiency while maintaining material performance. The resulting MPA-TPA/BDA-POPs exhibited high adsorption capacities (187.27 mg/g for FLU and 181.16 mg/g for TRI) and rapid equilibrium attainment (∼15 min). Adsorption mechanisms were elucidated through kinetic, isotherm, and thermodynamic analyses, revealing a combination of chemical interactions including hydrogen bonding and π–π stacking. The material demonstrated excellent reusability over six cycles with a minimal efficiency loss. Characterization techniques (SEM, FTIR, XPS, and BET) confirmed the successful adsorption of pesticides and the structural stability of the adsorbent. This work highlights the potential of microwave-synthesized POPs as sustainable and scalable solutions for pesticide removal in water treatment applications.