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TiO2-BASED COMPOSITE FILMS FOR THE PHOTODEGRADATION OF OXYTETRACYCLINE

Author

Listed:
  • HUI LI

    (Key Laboratory of Chemical Sensing &, Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China)

  • LING-XIAO GUAN

    (School of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan 75600, P. R. China)

  • JI-JUN FENG

    (Key Laboratory of Chemical Sensing &, Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China)

  • FANG LI

    (Key Laboratory of Chemical Sensing &, Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China)

  • MING-MING YAO

    (Key Laboratory of Chemical Sensing &, Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China)

Abstract

The spread of the antibiotic oxytetracycline (OTC) has been thought as a threat to the safety of drinking water. In this paper, the photocatalytic activity of the nanocrystallineFe/Caco-dopedTiO2-SiO2composite film for the degradation of OTC was studied. The films were characterized by field emission scanning electron microscopy (FE-SEM) equipped with energy-dispersive spectroscopy (EDS),N2adsorption/desorption isotherms, photoluminescence (PL) spectra, and UV-Vis diffraction reflectance absorption spectra (DRS). The FE-SEM results indicated that the Fe/Ca co-dopedTiO2-SiO2film was composed of smaller nanoparticles compared to pureTiO2orTiO2-SiO2film. The BET surface area results showed that the specific surface area of the pureTiO2,TiO2-SiO2andCa2+/Fe3+co-dopedTiO2-SiO2is 118.3 m2g-1, 294.3 m2g-1and 393.7 m2g-1, respectively. The DRS and PL spectra revealed that the Fe/Ca co-dopedTiO2-SiO2film had strong visible light adsorption and diminished electrons/holes recombination. Experimental results showed that theFe/Caco-dopedTiO2-SiO2film is effective in the degradation of OTC under both UV and visible light irradiation.

Suggested Citation

  • Hui Li & Ling-Xiao Guan & Ji-Jun Feng & Fang Li & Ming-Ming Yao, 2015. "TiO2-BASED COMPOSITE FILMS FOR THE PHOTODEGRADATION OF OXYTETRACYCLINE," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 22(02), pages 1-7.
  • Handle: RePEc:wsi:srlxxx:v:22:y:2015:i:02:n:s0218625x15500249
    DOI: 10.1142/S0218625X15500249
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