Kim, Do-Heon Park, Ji Young Lee, Yunjeong Moon, Hyeokgyun Lee, Jinkee Park, Hye Sung Hong, Seok Won Baik, Jeong Min 2026-02-19T05:00:50Z 2026-02-19T05:00:50Z 2026-02-19 2026-01 1369-7021 https://pubs.kist.re.kr/handle/201004/154292 The remediation of nanoplastic particles (NPPs) from aqueous environments remains a significant challenge, given their small dimensions, limited adsorption affinity, and high mobility. In this work, we report a reusable electrokinetic filtration platform that enables high-flux sequestration of NPPs along with self-sustained operation. The system employs magnesium oxide-coated porous nickel foam, achieving >99 % filtration efficiency (FE) for 50 nm polystyrene particles under a low-voltage (10 V) electric field, with a flux of 39.5 mL·cm−2·min−1. A theoretical framework was developed to describe the electrokinetic transport and surface adsorption, which demonstrated strong agreement with experimental observations. The model was further validated using cationic poly(vinyl alcohol)/poly(ethylene imine)–carbon dots, whose protonated amine groups exhibited a FE of 97.7 %. The platform enables regeneration by field reversal, consistently maintaining >93 % FE over 20 cycles. Integration with a triboelectric nanogenerator allows for off-grid operation while preserving >96 % FE. The system demonstrates stable performance in both tap and river water, reducing total dissolved and suspended solids to levels below WHO drinking water guidelines. This work offers an energy-independent, scalable solution for the remediation of NPPs in complex, real-world water matrices. English Elsevier BV High-efficiency, reusable electrokinetic filtration platform for high-Flux nanoplastic sequestration and self-powered operation Article 10.1016/j.mattod.2025.12.008 1 Materials Today, v.92, pp.282 - 293 Materials Today 92 282 293 N scie 001678344500001 2-s2.0-105025123692 Materials Science, Multidisciplinary Materials Science Article ADSORPTION NANOPARTICLES PARTICLE MECHANISMS SURFACES STATE Nanoplastic filtration Isoelectric point Electrokinetic phenomena Triboelectric nanogenerator Recyclable