title: Novel Bi2WO6-coupled Fe3O4Magnetic Photocatalysts: Preparation, Characterization and Photodegradation of Tetracycline Hydrochloride.
abstract: Novel Bi2WO6-coupled Fe3O4magnetic photocatalysts with excellent and stable photocatalytic activity for degrading tetracycline hydrochloride and RhB were successfully synthesized via a facile solvothermal route. Through the characterization of the as-prepared magnetic photocatalysts by X-ray diffractometry, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, UV-Vis diffuse reflectance spectra, it was found that the as-prepared magnetic photocatalysts were synthesized by the coupling of Bi2WO6and Fe3O4, and introduction of appropriated Fe3O4can improve nanospheres morphology and visible-light response. Among them, BFe2 (0.16% Fe3O4) exhibited the best photocatalytic activity for degradation of tetracycline hydrochloride (TCH), reaching 81.53% after 90 min. Meanwhile, the as-prepared magnetic photocatalysts showed great separation and recycle property. Moreover, the results of electrochemical impedance spectroscopy demonstrated that the well conductivity of Fe3O4can promote photogenerated charge carriers transfer and inhibit recombination of electron-hole pairs, so that Bi2WO6/Fe3O4exhibited enhanced photocatalytic activity on degradation of TCH and RhB. Hence, this work provides a principle method to synthesize Bi2WO6/Fe3O4with excellent photocatalytic performance for actual application, in addition, it showed that introduction of Fe3O4not only can provide magnetism, but also can enhance photocatalytic activity of Bi2WO6/Fe3O4magnetic photocatalysts.
authors.affiliation: College of Resources and Environment, Jilin Agricultural University, Changchun, China.|Institute of Water Resources and Environment, Jilin University, Changchun, China.
authors.forename: Tianye
authors.initials: T
authors.lastname: Wang
authors.affiliation: Institute of Water Resources and Environment, Jilin University, Changchun, China.|Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Shuang
authors.initials: S
authors.lastname: Zhong
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: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Fuhuan
authors.initials: F
authors.lastname: Jiang
authors.affiliation: Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, China.
authors.forename: Limin
authors.initials: L
authors.lastname: Feng
authors.affiliation: Institute of Water Resources and Environment, Jilin University, Changchun, China.
authors.forename: Xiaosi
authors.initials: X
authors.lastname: Su