Ultrasound-Assistant Solvothermal Design of Flower-Like Bi۷O۹I۳-BiOI Nanophotocatalyst:Effective Rhodamine B Deletion

Flower-like Bi۷O۹I۳-BiOI nanophotocatalyst was successfully synthesized ultrasound-assistant sono-solvothermal method to degrade the ۵۰ mg/L rhodamine B (RhB) in the solar spectrum range. The mentioned nanophotocatalyst was characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) analyses. The consequences obtained from XRD demonstrated that the samples were synthesized well. The result of reactor test shown that with ۱ g/L catalyst and after ۶۰ min simulated sunlight irradiation, the degradation percentage of RhB over the flower-like Bi۷O۹I۳-BiOI was ۸۷.۴%. The high activity of the flower like Bi۷O۹I۳-BiOI nanophotocatalyst could be devoted to its suitable bandgap, high activity in the solar light region originating from the high absorption light, which could lead to the increase of electron-hole pairs, decreasing the recombination rate of excitons and the effect of ultrasound energy