Abstract
Fast and template-free method is proposed for preparation of Ce-doped ZnO nanostructures (0≤ mole fraction of Ce+4≤0.15) in water under microwave irradiation for 10min without using any templates and additives. Photocatalytic activity of the nanostructures was investigated by degradation of methylene blue (MB) under UV irradiation. Doping of the ZnO nanostructures with 0.1mol fraction of Ce+4 ions increases the rate constant about 7-fold. The photocatalyst with 0.8g/L have highest rate constant. Moreover, the reaction rate constant decreases with calcination temperature and the optimum value for pH of solution is 5.4.
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