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Boron-Doped Tin Dioxide Films For Environmental Applications

Author

Listed:
  • XIANG-BIN KONG

    (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)

  • ZHONG-NAN QI

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

  • LEI QI

    (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

In order to enhance the photodegradation of organic pollutants, Boron-doped tin dioxide (B-doped SnO2) composite films with narrowed band gap were successfully prepared by the sol–gel method. The samples are characterized by UV–Vis absorption spectroscopy, photoluminescence (PL), X-ray diffraction (XRD), high-resolution field emission scanning electron microscope (FE-SEM), X-ray energy dispersive spectroscopy (EDS), and Brunauer–Emmett–Teller (BET). UV–Vis absorption spectroscopy results revealed that the absorption of the B-doped SnO2 film was clearly broadened to the visible light area. PL results showed that the recombination rate of the photo-generated species was effectively prohibited by B doping. The photocatalytic properties of the films were evaluated by degradation of organic pollutants including acid naphthol red (ANR) dye and formaldehyde solutions. Experimental results indicated that the B-doped SnO2 film exhibited an excellent photocatalytic activity under visible light irradiation due to its strong visible light response and diminished electron–hole recombination.

Suggested Citation

  • Xiang-Bin Kong & Fang Li & Zhong-Nan Qi & Lei Qi & Ming-Ming Yao, 2017. "Boron-Doped Tin Dioxide Films For Environmental Applications," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 24(05), pages 1-10, July.
    • Handle: RePEc:wsi:srlxxx:v:24:y:2017:i:05:n:s0218625x17500597
    DOI: 10.1142/S0218625X17500597
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