Plasmon Ag and CdS quantum dot co-decorated 3D hierarchical ball-flower-like Bi5O7I nanosheets as tandem heterojunctions for enhanced photothermal–photocatalytic performance

Bi₅O₇I/Ag/CdS tandem heterojunction photocatalysts show excellent photothermal and photocatalytic performance, which is attributed to the formation of tandem heterojunctions, surface plasmon resonance, and 3D hierarchical structure.