Preparation of vanadium-titanium magnetite tailings/quartz sand monolithic composite and photocatalytic degradation of rhodamine B

This study focused on the preparation, characterization and photocatalytic performance of a monolithic composite made from vanadium-titanium magnetite tailings and quartz sand. Rhodamine B was used as a pollutant model and the photocatalytic degradation of rhodamine B by the prepared composites was investigated. The results indicated that the composite could effectively degraded Rhodamine B, achieving a degradation rate of 98 % within 20 min under optimal conditions. Investigations on the degradation mechanism revealed that dissolved oxygen, superoxide radicals, and the sensitization of Rhodamine B are crucial to the photocatalytic degradation process of Rhodamine B. These results suggest potential benefits for the comprehensive utilization of vanadium titanomagnetite tailings.