Abstract
The preparation of Ce, Ag codoped ZnO/Fe3O4 nanoparticles (Ce-Ag-ZnO/Fe3O4) has been successfully performed employing the co-precipitation method. This method is performed in large scales, mild and does not include any template, surfactant or additive. The products have been characterized by some characterization techniques such as X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), photoluminescence spectroscopy (PL) and vibrating sample magnetometer (VSM). Besides, photocatalytic behavior of the nanoparticles was examined by photodegradation of methylene blue (MB) under UV light irradiations. The photocatalyst of modified zinc oxide exhibited a higher photocatalytic activity rather than pure zinc oxide. Also, the highest photocatalytic activity was attributed to the Ce-Ag-ZnO/Fe3O4 samples, having the lowest recombination rate for the photogenerated electrons and holes and the lowest band gap energy as well. The obtained results indicated that the Ce-Ag-ZnO/Fe3O4 can potentially be employed as an efficient photocatalyst for practical wastewater treatment.
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