Zeolite Y encapsulated with Fe-TiO2 for ultrasound-assisted degradation of amaranth dye in water

► Sonocatalytic degradation of amaranth dye in water. ► Ion-exchange of titania into pores of zeolite Y. ► Impregnation of Fe (III) on the encapsulated titanium. ► Blue shift toward shorter wavelength after the loading of Ti into NaY. ► Elucidation of effects of reaction variables on decolorization efficiency.