Abstract:
The single, binary and ternary systems nano-materials were synthesized by co-precipitation
method. The zeolite supported terray nanocompsotes were prepared by impregnation method
using synthetic zeolite as the supporting material. The structures, compositions, surface
functional groups and band gap energies of the composites were studied using X ray diffraction
(XRD), FTIR, PL, AAS, and UV–Vis diffuse reflectance spectroscopic techniques. Photocatalytic
degradation activities of the nano-composites under visible light irradiation were evaluated on
aqueous solution of a model pollutant Methylene Blue dye solution as well as on a real sewage
sample solution collected from Hawassa Textile Industry. Results suggested that the zeolite
supported ternary nano-composite photocatalyst exhibited a relatively higher efficiency on the
photodegradation of both Methyenel blue (MB) 92.57% and real sewage sample solutions
73.24%.. The improved photodegradation efficiency in the visible region of the supported
nanocomposite is due to the sorption or ion exchange ability of the zeolite material. The
reusability of this photocatalyst was tested and only an 18 % decrement was observed after four
cyclic run.
