Enhanced Sonophotocatalytic Degradation of Acid Red 14 Using Fe3O4@SiO2/PAEDTC@MIL-101 (Fe) Based on Metal-Organic Framework

Here, the magnetic Fe3O4@SiO2/PAEDTC@MIL-101 (Fe) with a new core-shell structure was synthesized, and its sonophotocatalytic properties were evaluated for acid red 14 (AR14) degradation. Particle characterizations determined by scanning electron microscope (SEM), transmission microscopy (TEM), X-ray powder diffraction (XRD), vibrating-sample magnetometer (VSM), analysis results offered an excellent synthesis of mesoporous particles. (Fe)/UV/US showed high degradation kinetics rate (0.0327 min?1) compared to sonocatalytic processes (0.0181 min?1), photocatalytic (0218 sonolysis (0.008 photolysis (0.005 min?1). Maximum removal efficiencies AR14 (100%) total organic carbon (69.96%) obtained at pH 5, catalyst mass 0.5 g/L, initial concentration 50 mg/L, ultrasound power 36 W. Evaluation BOD5/COD ratio during dye treatment confirmed that sonophotocatalysis process can be useful converting major contaminant molecules into biodegradable compounds. After recycling eight times, prepared composite still has stability above 90% AR14. Scavenging tests holes (h+) hydroxyl (•OH) pivotal agents in decomposition system. Based on results, synthesized sample suggested as promising sonophotocatalyst conversion