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<p>Photoactive anatase TiO₂ nanomaterial was conveniently synthesized via a simple and alternate β-cyclodextrin-based precursor method. Characterization of the material revealed the formation of pure anatase TiO<sub>2</sub> structure and mean particle size ≈30&#xa0;nm. The photocatalytic activity of the materials was assessed by the photodegradation of Rhodamine B dye and paracetamol drug molecule as prototype pollutants under UV/visible light irradiation. The sample 2DT (anatase-TiO<sub>2</sub>) prepared using 2%-β-cyclodextrin exhibited the highest degradation efficiency for paracetamol at pH 8. LC–MS analysis confirmed the major paracetamol degradation intermediates as 2,4-dihydroxyphenol (m/z 127.2) and maleic acid (m/z 116.9). The reactive species generated by the photocatalyst were superoxide (<sup>•</sup>O₂⁻), holes (h⁺), and hydroxyl radicals (<sup>•</sup>OH), which were responsible for the degradation of paracetamol. The current study offered a great prospect for the treatment of pharmaceutical effluents before their release into the environment.</p>

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Photosensitive anatase-TiO₂ nanomaterial: β-cyclodextrin based synthesis, characterization and photocatalytic degradation of paracetamol

  • 期刊论文

  • 发表日期：

    2026年7月2日

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  • Manisha Mhalsekar,
  • Vrinda Borker,
  • Priyanka Kole

摘要

Photoactive anatase TiO₂ nanomaterial was conveniently synthesized via a simple and alternate β-cyclodextrin-based precursor method. Characterization of the material revealed the formation of pure anatase TiO2 structure and mean particle size ≈30 nm. The photocatalytic activity of the materials was assessed by the photodegradation of Rhodamine B dye and paracetamol drug molecule as prototype pollutants under UV/visible light irradiation. The sample 2DT (anatase-TiO2) prepared using 2%-β-cyclodextrin exhibited the highest degradation efficiency for paracetamol at pH 8. LC–MS analysis confirmed the major paracetamol degradation intermediates as 2,4-dihydroxyphenol (m/z 127.2) and maleic acid (m/z 116.9). The reactive species generated by the photocatalyst were superoxide (•O₂⁻), holes (h⁺), and hydroxyl radicals (•OH), which were responsible for the degradation of paracetamol. The current study offered a great prospect for the treatment of pharmaceutical effluents before their release into the environment.