Degradation of rhodamine B in water by ultrasound-assisted TiO2 photocatalysis

Rhodamine B is widely used in the dyeing of paints, acrylic and other fabrics as well biological products. It highly toxic to organisms when directly discharged into water. To this end, paper, degradation water by ultrasound-assisted TiO2 photocatalysis was investigated. The effects various factors, such amount catalyst, speed mechanical stirring, frequency ultrasonic vibration, output power, initial pH value reaction solution, concentration B, introduced air, physical adsorption, etc., on wastewater were studied, optimal conditions obtained: rotational speed, value, rhodamine concentration, vibration frequency, power nanoparticles dosage 500 r/min, 7, 20 mg/L, 40 kHz, 300 W mg/L respectively. Finally, mechanism discussed. results indicate that method great potential application removal organic pollution environmental purification.