title: CeO2/Bi2WO6Heterostructured Microsphere with Excellent Visible-light-driven Photocatalytic Performance for Degradation of Tetracycline Hydrochloride.
abstract: CeO2/Bi2WO6heterostructured microsphere with excellent and stable photocatalytic activity for degradation tetracyclines was successfully synthesized via a facile solvothermal route. The photocatalytic experiments indicated that CeO2/Bi2WO6heterostructured microspheres exhibited enhanced photocatalytic activity compared to pure Bi2WO6in both the degradation of tetracycline hydrochloride (TCH) and rhodamine B (RhB) under visible-light irradiation. The 1CeO2/2Bi2WO6exhibited the best photocatalytic activity for degradation of TCH, reaching 91% after 60 min reaction. The results suggested that the particular morphological conformation of the microspheres resulted in smaller size and more uniform morphology so as to increase the specific surface area. Meanwhile, the heterojunction was formed by coupling CeO2and Bi2WO6in the as-prepared microspheres, so that the separation efficiency of photogenerated electrons and holes was dramatically improved and the lifetimes of charge carriers were prolonged. Hence, introduction of CeO2could significantly enhance the photocatalytic activity of CeO2/Bi2WO6heterostructured microspheres and facilitate the degradation of TCH. This work provided not only a principle method to synthesize CeO2/Bi2WO6with the excellent photocatalytic performance for actual produce, but also a excellent property of the photocatalyst for potential application in photocatalytic treatment of tetracyclines wastewater from pharmaceutical factory.
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Fengjun
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Shuang
authors.initials: S
authors.lastname: Zou
authors.affiliation: College of Resources and Environment of Jilin Agricultural University, Changchun, China.|Institute of Water Resources and Environment of Jilin University, Changchun, China.
authors.forename: Tianye
authors.initials: T
authors.lastname: Wang
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Yuxi
authors.initials: Y
authors.lastname: Shi
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Liu