Dual-plasmon synergy in Ag/Bi-engineered 2D Bi 4 O 5 Br 2 heterostructure nanosheets: a photothermal–photocatalytic cascade system for integrated water purification and solar evaporation

A novel Ag/Bi NP/Bi 4 O 5 Br 2 heterojunction photocatalyst was fabricated. Synergistic full-spectrum absorption and rapid carrier separation realize efficient solar evaporation and high-performance photocatalytic wastewater treatment.