We anchored Ph–CC–Cu, a type of metal organic molecule, onto the surface of α-Bi2O3 nanoparticles (NPs) to efficiently eliminate a high concentration of methyl orange (MO) in waste water. With the optimal α-Bi2O3/Ph–CC–Cu hybrid, the degradable concentration of MO was 3 × 10−4 M, which is 5 times higher than that in most of the previously reported photocatalytic researches (6 × 10−5 M). The photocatalytic activity of the α-Bi2O3/Ph–CC–Cu hybrid in this work even exceeds that of commercial P25 for MO degradation under full spectrum light. Furthermore, a targeted Z-scheme construction was proposed and demonstrated using photocatalytically generated reactive oxygen species (ROS), photocurrent densities, fluorescence spectra and photocatalytic reduction of AgNO3 experiment. This work not only reported an efficient hybrid for MO elimination with high concentration in waste water, but also provided new explanations for the Z-scheme mechanism.
展开▼
