Abstract
Characterizations of Ag/ZnO hollow sphere by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectra, and UV-vis absorption spectra have been made after its synthesis. The results showed that the composite was hollow structure with diameters of about 1-4 μm. The samples synthesized were tested and identified as silver doped ZnO, which have extended and boosted the spectral absorption. The photocatalytic activity of Ag/ZnO hollow spheres was assessed using 17α-ethinylestradiol aqueous solution under UV irradiation. It has been observed that the 17α-ethinylestradiol absorption efficiency and degradation rate is higher for Ag/ZnO hollow spheres. As reusable photocatalysts, Ag/ZnO hollow spheres which could be easily separated from a suspension will facilitate their application in wastewater treatment with enhanced photostability.
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