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Research Journal of Nanoscience and Nanotechnology
 
 
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Sonochemical Method Preparation of Nanosized Systems Based on Oxides of Zn, Ce and Mo

Valery Zazhigalov , Olena Sachuk and Volodymyr Starchevskyy

Abstract:
The influence of sonochemical treatment on the physico-chemical properties of oxide systems ZnO/CeO2, ZnО/MoO3 and CeO2/MoO3 were investigated and changes in crystalline structure, morphology and phase transformation was established. It was found that as a result of the treatment the formation of triclinic modification of zinc molybdate α-ZnMoO4, grinding of the oxides and increase of specific surface area of the compositions occurs. The results of catalytic activity of activated samples in ethanol oxidation reaction demonstrate the high selectivity and yield of acetic aldehyde (94%) at low reaction temperature. The blue shift of edge absorption in powder-like samples and band-gap energy (Eg) increase were fixed by UV-vis spectroscopy. It was found that activated samples show the promising results in dyes photodegradation processes of water solution at visible light irradiation.
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