Fe2O3/Bi2WO6 hierarchical microspheres for visible-light-driven degradation of p-nitrophenol: performance, mechanism, and green metrics
Bismuth tungstate (Bi2WO6), an Aurivillius-phase visible-light semiconductor, has a wide band gap and rapid charge-carrier recombination that significantly affects its photocatalytic efficiency. To overcome these intrinsic limitations, Fe2O3/Bi2WO6 composites were synthesised via a facile single-step hydrothermal techn...