Abstract
This study addresses the properties affecting the activity and stability of Fe/Ti-NaY heterogeneous catalysts with different Fe and Ti loadings in ultrasound-irradiated decolorization of Amaranth dye in aqueous solution. The catalysts were prepared using an ion-exchange method followed by an impregnation method. Different characterization techniques, i.e., XRD, AFM, UV–Vis, and SEM/EDAX, were performed to characterize the catalysts. TiO2 was successfully encapsulated within the internal pore of the zeolite resulted in a blue shift toward shorter wave length. On the other hand, Fe deposition on the external surface caused a red shift and reduced the surface roughness. Loading of Ti and Fe slightly increased the hydrophilicity of the heterogeneous catalyst. Increasing amount of Fe above the optimum value could also cause the scavenging of •OH radicals and higher consumption of hydrogen peroxide. External H2O2 could be used to accelerate the sonocatalytic reaction.
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Alwash, A.H., Jamalluddin, N.A., Ismail, N., Abdullah, A.Z. (2013). Sonocatalytic Degradation of Acid Red Dye in Water Using Fe-Doped TiO2 Deposited on HY Catalyst. In: Pogaku, R., Bono, A., Chu, C. (eds) Developments in Sustainable Chemical and Bioprocess Technology. Springer, Boston, MA. https://doi.org/10.1007/978-1-4614-6208-8_13
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