Silver single atoms and nanoparticles on floatable monolithic photocatalysts for synergistic solar water disinfection.

ABSTRACT: Photocatalytic water disinfection technology is highly promising in off-grid areas due to abundant year-round solar irradiance. However, the practical use of powdered photocatalysts is impeded by limited recovery and inefficient inactivation of stress-resistant bacteria in oligotrophic surface water. Here we prepare a floatable monolithic photocatalyst with ZIF-8-NH₂ loaded Ag single atoms and nanoparticles (Ag_SA+NP/ZIF). Atomically dispersed Ag sites form an Ag-N charge bridge, extending the lifetime of charge carriers and thereby promoting reactive oxygen species (ROS) generation. The photothermal effect of the plasmonic Ag nanoparticles reduces the bacterial resistance to ROS and impairs DNA repair capabilities. Under sunlight irradiation, the synergistic effect of

SUBMITTER: Wang J 

PROVIDER: S-EPMC11761480 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature