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Abstract: 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
Template and target information: oxytetracycline
Author keywords: Molecular, ions imprinted, La3+@POPD, TiO2, fly-ash cenospheres, antibiotics, Photocatalysis, Selection