title: Ag/ZnO hollow sphere composites: reusable photocatalyst for photocatalytic degradation of 17α-ethinylestradiol.
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.
authors.affiliation: Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, People's Republic of China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.forename: Yuming
authors.initials: Y
authors.lastname: Wang
authors.forename: Linhua
authors.initials: L
authors.lastname: Liu
authors.forename: Dawei
authors.initials: D
authors.lastname: Wang
authors.forename: Wenlong
authors.initials: W
authors.lastname: Zhang
mesh_terms: D002384:Catalysis; D004997:Ethinyl Estradiol / Q000032:analysis / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D054118:Nanospheres / Q000737:chemistry; D055668:Photochemical Processes; D012834:Silver / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000737:chemistry*; D014961:X-Ray Diffraction; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D014874:Water Pollutants, Chemical; D012834:Silver; D004997:Ethinyl Estradiol; D015034:Zinc Oxide