Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2010.1068.10752 Powder and Nanotubes]]>PangY.L. AbdullahA.Z. BhatiaS. 1220101012Titanium dioxide (TiO2) powder and TiO2 nanotubes (NTs) were used as the catalysts for sonocatalytic degradation of Rhodamine B in aqueous solution. The effect of parameters such as initial concentration of between 50-150 mg L-1, catalyst loading of between 500-3000 mg L-1, solution temperature of between 20-70°C, hydrogen peroxide (H2O2) concentration of between 4-16 mM and the presence of air flow at ultrasonic power of 50 W and 35 kHz had been investigated. Then, the optimum condition for sonocatalytic degradation Rhodamine B had been established. Higher sonocatalytic degradation efficiency of Rhodamine B can be achieved through TiO2 nanotubes as compared to TiO2 powder. The experimental results show that the best degradation efficiency of Rhodamine B can be obtained when the experimental conditions occurred at the initial concentration of 50 and 2000 mg L-1 of TiO2 NTs, 8 mM of H2O2, ultrasonic power of 50 W and frequency of 35 kHz with the presence of air flow which give the efficiency of above 85% in 120 min.]]>Abbasi, M. and N.R. Asl,20082 and H2O2.]]>153942947Abdullah, A.Z. and P.Y. Ling,20102 in the degradation of organic dyes in aqueous solution.]]>173159167Bavykin, D.V., B.A. Cressey, M.E. Light and F.C. Walsh,200819275604.1275604.5Deng, L., S. Wang, D. Liu, B. Zhu, W. Huang, S. Wu and S. Zhang,20092 nanotubes with high photocatalytic activity.]]>129513518Goel, M., H. Hongqiang, A.S. Mujumdar and M.B. Ray,20043842474261Grzechulska, J. and A.W. Morawski,2002364551Harir, M., A. Gaspar, B. Kanawati, A. Fekete and M. Frommberger et al.,20092, H2O2 and TiO2/H2O2 in water interfaces: Kinetic and photoproducts study.]]>84524532Inoue, M., F. Okada, A. Sakurai and M. Sakakibara,200613313320Jiang, Y., C. Petrier and T.D. Waite,200613415422Kidak, R. and N.H. Ince,200613714531457Menzel, R., A.M. Peiro, J.R. Durrant and M.S.P. Shaffer,20061860596068Merouani, S., O. Hamdaoui, F. Saoudi, M. Chiha and C. Petrier,2010175593599Minero, C., M. Lucchiari, D. Vione and V. Maurino,20053989368942Poudel, B., W.Z. Wang, C. Dames, J.Y. Huang and S. Kunwar et al.,20051619351940Priya, M.H. and G. Madras,20062-catalyzed ultrasonic degradation of rhodamine dyes.]]>45913921Shimizu, N., C. Ogino, M.F. Dadjour and T. Murata,20072 pellets in water.]]>14184190Tachikawa, T., S. Tojo, M. Fujitsuka, T. Sekino and T. Majima,20061101405514059Tuziuti, T., K. Yasui, M. Sivakumar and Y. Iida,200510948694872Wang, J., Z. Pan, Z. Zhang, X. Zhang and F. Wen et al.,200613493500Wang, J., W. Sun, Z. Zhang, X. Zhang and R. Li et al.,20072728490Wang, J., Y. Jiang, Z. Zhang, X. Zhang and T. Ma et al.,20072 catalysts and comparison of catalytic activities of anatase and rutile TiO2 powders.]]>14545551Wang, J., Z. Pan, Z. Zhang, X. Zhang and Y. Jiang et al.,20072 and the comparison of their sonocatalytic activities.]]>74525530Wang, X., J. Wang, P. Guo, W. Guo and G. Li,200815357363Wang, Y., D. Zhao, W. Ma, C. Chen and J. Zhao,20082.]]>4261736178Wang, J., Y. Lv, L. Zhang, Z. Zhang and Y. Deng et al.,20092 powders and comparison of their sonocatalytic activities.]]>170398404Wang, J., Y. Lv, L. Zhang, B. Liu and R. Jiang et al.,20102/TiO2, SnO2/TiO2 and ZrO2/TiO2 composites under ultrasonic irradiation.]]>17642648Wang, J., T. Ma, Z. Zhang, X. Zhang and Y. Jiang et al.,20062) catalyst.]]>137972980