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| Titel: |
Comparison of Sonocatalytic Activities on the Degradation of Rhodamine B in the Presence of TiO2 Powder and Nanotubes |
| Auteur: |
Y.L. Pang A.Z. Abdullah S. Bhatia |
| Verschenen in: |
Journal of applied sciences |
| Paginering: | Jaargang 10 (2010) nr. 12 pagina's 1068-1075 |
| Jaar: |
2010 |
| Inhoud: |
Titanium 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. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 9 van 30 gevonden artikelen
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