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      https://www.ias.ac.in/article/fulltext/boms/043/0212

    • Keywords

       

      Fe-doped SnO$_2$ nanoparticles; CTAB; SDS; Triton X; photoluminescence.

    • Abstract

       

      A co-precipitation method with water as a distinctive solvent was used for the synthesis of pure, Fe-doped and surfactant-assisted Fe-doped SnO$_2$ nanoparticles (NPs). Furthermore, the NPs were characterized using X-ray diffraction (XRD), Fourier-transform infrared, scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDAX), high-resolution transmission electron microscopy (HRTEM), UV–visible, photoluminescence spectroscopy and spectrofluorometer. XRD patterns showed a tetragonal rutile structure of SnO$_2$ phase without additional peaks and a shift was noted for Fe-doped and surfactant-assisted Fe-doped samples. The crystallite sizes of Fe-doped and surfactant-assisted Fedoped SnO$_2$ NPs were found to decrease from 10.39 to 6.347 nm. Spherical morphology with uniform size was observed in all samples from SEM and HRTEM images. The presence of Sn, O and Fe ions was confirmed by EDAX analysis. The band gap energy of NPs was measured to be 3.487, 3.741, 3.845, 3.783 and 3.552 eV for pure, Fe-doped, cetyltrimethylammonium bromide, sodium dodecyl sulphate and Triton (surfactants) assisted Fe-doped NPs, respectively. An increase in the band gap was observed due to addition of Fe and surfactants. The photocatalytic study confirms that pure SnO$_2$ NPs exhibit a significant photo-degradation of methylene blue dye under sun light. Moreover, the physical properties of SnO$_2$ were modified by Fe-doping and addition of surfactants in comparison with pure SnO$_2$ NPs.

    • Author Affiliations

       

      K SUJATHA1 2 3 T SEETHALAKSHMI3 A P SUDHA2 O L SHANMUGASUNDARAM4

      1. Bharathidasan University, Tiruchirappalli 620 024, India
      2. PG Department of Physics, Vellalar College for Women, Erode 638012, India
      3. PG Department of Physics, Government Arts College, Karur 639005, India
      4. Department of Textile Technology, K.S. Rangasamy College of Technology, Tiruchengode 637215, India
    • Dates

       
  • Bulletin of Materials Science | News

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