The Zeolite Y as a support was modified by
the incorporating of Fe and TiO2 in one single step using
impregnation method. The synergistic effects between those components enhance
the catalytic activity for the degradation of amaranth dye under ultrasonic
irradiation with output power of 50 W and 40 kHz frequency. Different
characterization techniques were used to elucidate the physical and chemical
properties of the produced catalysts. The XRD results indicated that the type
of titanium precursor significantly effects on the crystallinity of 0.4%
Fe/15%TiO2-NaY catalyst. The AFM results detected that the TiO2 formed a layer covered the surface of zeolite while Fe clusters were located
close to TiO2. The influence of reaction parameters such as TiO2 and Fe content, pH values, amount of hydrogen peroxide used, catalyst loading
and the initial dye concentration were investigated for the decolorization
efficiency of amaranth. The maximum decolorization efficiency for 0.4%Fe/15%TiO2-NaY
was 100% after 120 min of reaction time with an initial dye concentration of 30
mg/L, 2 g/L of catalyst loading, natural pH about 5.5 and 0.65 mM H2O2.
Cite this paper
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