Sonocatalytic degradation of Rhodamine B in the presence of C60 and CdS coupled TiO2 particles

• Published in: Ultrasonics sonochemistry 2012, Vol.19 (1), p.143-150
• Main Authors: MENG, Za-Da, LEI ZHU, CHOI, Jong-Geun, CHONG YEUN PARK, OH, Won-Chun
• Format: Article
• Language: English
• Subjects: Cadmium Compounds - chemistry; Catalysis; Chemistry; Colloidal gels. Colloidal sols; Colloidal state and disperse state; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Fullerenes - chemistry; Fullerenes and related materials; diamonds, graphite; General and physical chemistry; Materials science; Particle Size; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Physics; Rhodamines - chemistry; Specific materials; Sulfides - chemistry; Surface Properties; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Titanium - chemistry; Ultrasonic chemistry; Ultrasonics
• ISSN: 1350-4177; 1873-2828
• DOI: 10.1016/j.ultsonch.2011.05.006

CdS-TiO2 and CdS-C60/TiO2 were prepared using C60, cadmium acetate dehydrate [(CH3COO)2Cd·2H2O], sodium sulfide (Na2S·5H2O) and titanium (IV) n-butoxide by a sol-gel method. The prepared sonocatalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX) and transmission electron microscopy (TEM). A rhodamine B (RhB) solution under ultrasonic irradiation was used to determine the catalytic activity. Excellent catalytic degradation of an RhB solution was observed using the CdS-C60/TiO2 composites under ultrasonic irradiation. C60 coupled CdS-TiO2 can enhance the Brunauer-Emmett-Teller (BET) surface area and increase the decolorization rate for rhodamine B solution. The results also shows that increase the content of CdS can enhance the catalytic activity.