期刊
CHEMICAL ENGINEERING JOURNAL
卷 198, 期 -, 页码 73-80出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.05.089
关键词
Molecular/ions imprinted; La3+@POPD/TiO2/fly-ash cenospheres; Antibiotics; Photocatalysis; Selection
资金
- Research Foundation of Jiangsu University, China [11JDG107]
- Natural Science Foundation of Jiangsu Province [SBK2011460]
- Specialized Research Fund for the Doctoral Program of Higher Education [20113227110019]
- China Postdoctoral Science Foundation [2012M511219]
The molecular/ions surface imprinted TiO2/fly-ash cenospheres photocatalyst was prepared by molecular imprinted technology with coordination compounds of La3+ and oxytetracycline as molecular template. The phase, surface structure and light absorption of as-prepared imprinted photocatalyst were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV-vis diffuse reflectance spectra (UV-vis DRS) and Fourier transform infrared (FT-IR), respectively. The preferentially selected degradation and activity of imprinted photocatalyst were evaluated by degradation of different antibiotic waste water. The results indicate that molecular/ions surface imprinted photocatalyst could preferentially degradate tetracycline antibiotic molecular effectively and enhance the photocatalytic activity. The degradation rate of oxytetracycline ligand molecular could reach 76% in 60 min under visible light irradiation. The relatively coefficient of selectivity degradation on oxytetracycline could reach 4.5146 compared with the ciprofloxacin. (C) 2012 Elsevier B.V. All rights reserved.
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