Water Research, Journal Year: 2023, Volume and Issue: 244, P. 120543 - 120543

Published: Aug. 29, 2023

The accumulation of plastic debris in aquatic organisms has raised serious concerns about the potential health implications their incorporation into food chain. However, conventional water remediation techniques are incapable effectively removing nanoplastics (NPs) smaller than 200 nm, which can have harmful effect on animal and human health. Herein, we demonstrate "on-the-fly" capture NPs through enlargement (approximately 4,100 times) using self-propelled nanobots composed a metal-organic framework. Under visible-light irradiation, iron hexacyanoferrate (FeHCF) nanobot exhibits fuel-free motion by electrostatically adsorbing NPs. This strategy contribute to reducing pollution environment, is significant environmental challenge. Light-induced intervalence charge transfer FeHCF lattice induces bipolarity surface, leading binding negatively charged local electron density then triggers self-propulsion, thereby inducing agglomeration FeHCF@NP complexes stabilize metastable state. maximum removal capacity 3,060 mg∙g-1 rate constant 0.69 min-1, higher those recorded for materials reported literature.

Language: Английский