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<p>This study reports the synthesis and comprehensive characterization of bismuth oxyiodide (BiOI) nanostructures using XRD, SEM, HRTEM, UV–Vis, BET, Raman spectroscopy, and AFM. The XRD data confirm the formation of tetragonal phase of BiOI. Raman spectroscopy identifies the characteristic Bi–I stretching mode (143.93&#xa0;cm<sup>−1</sup>) and morphological analysis by FESEM and HRTEM reveals BiOI nanostructures with rod-like morphology and uniform particle distribution. Photocatalytic performance was evaluated by degradation of crystal violet dye under sunlight, where BiOI achieved a degradation efficiency of 26% with a rate constant of (0.133 ± 0.00001) × 10<sup>−2</sup>&#xa0;min<sup>−1</sup>. These results, coupled with elemental and surface analyses, underscore the proficiency of BiOI as a stable and effective photocatalyst for environmental remediation applications.</p> Graphical abstract <p></p>

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Efficient visible-light-driven photocatalysis by pure bismuth oxyiodide (BiOI) nanostructures for dye degradation

  • 期刊论文

  • 发表日期：

    2026年5月6日

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  • Jatin Mithari,
  • Vikram Pandit,
  • Sucheta Gaikwad

摘要

This study reports the synthesis and comprehensive characterization of bismuth oxyiodide (BiOI) nanostructures using XRD, SEM, HRTEM, UV–Vis, BET, Raman spectroscopy, and AFM. The XRD data confirm the formation of tetragonal phase of BiOI. Raman spectroscopy identifies the characteristic Bi–I stretching mode (143.93 cm−1) and morphological analysis by FESEM and HRTEM reveals BiOI nanostructures with rod-like morphology and uniform particle distribution. Photocatalytic performance was evaluated by degradation of crystal violet dye under sunlight, where BiOI achieved a degradation efficiency of 26% with a rate constant of (0.133 ± 0.00001) × 10−2 min−1. These results, coupled with elemental and surface analyses, underscore the proficiency of BiOI as a stable and effective photocatalyst for environmental remediation applications.

Graphical abstract