In situ generation of Pd/Fe3O4 nanoparticles on covalent organic framework nanosheets for ultrasensitive detection and rapid removal of Hg2+

Key Points

• Palladium/Fe3O4 nanoparticles exhibited high sensitivity for Hg2+ detection, enhancing environmental monitoring efforts.
• Intriguingly, levels of detection reached as low as 0.1 ppb for mercury ions, demonstrating significant efficacy.
• Covalent organic framework nanosheets were employed to facilitate nanoparticle generation using a straightforward synthesis approach.
• The findings highlight the potential for rapid removal of mercury, calling for further exploration in practical applications.