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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/042/04/0179

    • Keywords

       

      Semiconductor; nanoflowers; photoluminescence; defects; microwave-assisted sol–gel method.

    • Abstract

       

      Photocatalytic performances of the synthesized cerium doped (Ce-doped) ZnO nanoflowers are reported in this work. A microwave-assisted sol–gel method is adopted for the synthesis of the nanomaterial and its structural andmorphological features are characterized. While doping, the Ce$^{3+}$ ions occupy the sites of Zn$^{2+}$ ions in the hexagonal ZnO lattice, which is investigated by means of X-ray diffraction studies and energy dispersive X-ray analysis. At higher Ce$^{3+}$ concentrations, ultraviolet (UV) light absorption is quite high as evidenced by the UV–Vis absorption spectra. The photoluminescence study demonstrates higher oxygen vacancy and zinc interstitials for the Ce-doped ZnO compared to the undoped ZnO. Ce-doping improves the electrical properties of the sample as well. Finally, it is established that the Ce-doped ZnO nanoflower is highly efficient in UV degrading the methylene blue organic dye.

    • Author Affiliations

       

      HEMALATHA PARANGUSAN1 DEEPALEKSHMI PONNAMMA1 MARIAM AL ALI AL-MAADEED2

      1. Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar
      2. Materials Science and Technology Program, Qatar University, P.O. Box 2713, Doha, Qatar
    • Dates

       
  • Bulletin of Materials Science | News

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