Quercetin-mediated 3-D hierarchical BiOI-Q and BiOI-Q-Ag nanostructures with enhanced photodegradation efficiency

The nanostructured BiOI-Q-Ag composites were prepared by a quercetin-assisted hydrolysis route under varying concentrations of Ag. samples examined microscopic and spectroscopic investigations, which revealed that the Ag nanoparticles (NPs) efficiently loaded on 3D BiOI-Q nanoflowers, higher density was observed with increasing amount photocatalytic activities as-synthesized BiOI-Q, (1), (2), (3) for methyl orange degradation (MO) antibacterial activity against four different bacteria i.e. Bacillus pumilus, Acinetobacter baumanni, Staphylococcus aureus, Pseudomonas aeruginosa visible light irradiation (VLI). showed improved performances over signifying important role optimized ratio obtained at (2). enhancement in performance could be attributed to effective separation photogenerated electron-hole (e--h+) pairs multiple interfaces developed among BiOI, quercetin, facilitated charge transfer. trapping experiment suggested h+, .OH, . O2− dominant active species photodegradation process. electrochemical studies recombination photoinduced charges (2) composite inhibited strongly as compared sample. maintained cycling experiments.