aCollege of Chemistry and Chemical Engineering,Qiqihar University Qiqihar,Heilongjiang 161006,China bSchool of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China
The C/Fe-Bi2WO6 photocatalyst was prepared by a two-step method, involving resin carbonization and hydrothermal reaction process. Comparative research on photoactivities of different catalysts was carried out. Influence of condition factors on photocatalytic oxidation degradation of norfloxacin(NOR) solution under simulated sunlight irradiation was investigated. The degrading reaction fits the first-order kinetics well under experimental conditions. After irradiation under a 500 W Xenon lamp for 60 min, NOR completely decomposed with the first order reaction rate constant(Kapp) of 0.0751 min-1 under the conditions that the initial concentration of NOR is 10 mg/L, the C/Fe-Bi2WO6 loading is 0.75 g/L, and the concentration of H2O2 is 200 mg/L at pH 7.0. The OH formation in C/Fe-Bi2WO6 photocatalytic oxidation was studied via molecular fluorescence spectrum, and the possible photocatalytic oxidation mechnasim and the degradation paths and intermediate products of NOR were proposed.
陈世界, 汤晓君, 陈茜, 李英杰, 高立娣, 王鹏. C/Fe-Bi2WO6光催化氧化诺氟沙星废水的效能及其机理[J]. 应用化学, 2017, 34(8): 936-945.
CHEN Shijie, TANG Xiaojun, CHEN Xi, LI Yingjie, GAO Lidi, WANG Peng. Efficiency and Mechanism of Photocatalytic Oxidation of Norfloxacin in Wastewater by C/Fe-Bi2WO6. Chinese Journal of Applied Chemistry, 2017, 34(8): 936-945.
Photocatalytic rremoval kinetics of NOR over different H2O2 mass concnetration
PL emission spectra of C/Fe-Bi2WO6 and Bi2WO6
Different reactive oxygen species contribution to norfloxacin photocatalytic oxidation degradation
Schematic diagram for photocatalytic oxidation of NOR over C/Fe-Bi2WO6
Decomposed products of norfloxacin by photocatalytic oxidation degradation
Degradation paths in the photocatalytic oxidation degradation of NOR
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