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<p>Triclosan (TCS), a widely used antimicrobial agent, has prompted the search for effective degradation methods. This study explored the catalytic oxidation of triclosan (TCS) employing hydrogen peroxide over Fe/TiO<sub>2</sub> and Ag-Fe/TiO<sub>2</sub> catalysts under mild conditions. Process parameters, including pH, iron loading, temperature, and hydrogen peroxide dosage, were optimized for maximum efficiency. TCS degradation and catalyst performance were monitored using HPLC analysis with a C18 column and an acetonitrile–water mobile phase. Complete TCS conversion was achieved within 110 min over the 0.5Ag-3Fe/TiO<sub>2</sub> catalyst calcined in oxygen. Characterization techniques (XRD, N<sub>2</sub> physisorption, H2-TPR, elemental analysis) revealed a strong correlation between the close interaction of silver and iron oxide species and the catalyst's activity and stability. This information could pave the way for the development of high-performance catalysts at ambient temperatures.</p>

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Enhancing Triclosan (TCS) Oxidation with Ag-Modified Fe/TiO2 Catalyst in the Presence of H2O2

  • 期刊论文

  • 发表日期：

    2025年4月11日

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  • Abdallah Mohamed Aïssa,
  • Rached Ousji,
  • Yosr Ben Mabrouk,
  • Hanene Ben Boubaker,
  • Mohamed Embaby,
  • Shemseddine Fessi,
  • Zouhaier Ksibi

摘要

Triclosan (TCS), a widely used antimicrobial agent, has prompted the search for effective degradation methods. This study explored the catalytic oxidation of triclosan (TCS) employing hydrogen peroxide over Fe/TiO2 and Ag-Fe/TiO2 catalysts under mild conditions. Process parameters, including pH, iron loading, temperature, and hydrogen peroxide dosage, were optimized for maximum efficiency. TCS degradation and catalyst performance were monitored using HPLC analysis with a C18 column and an acetonitrile–water mobile phase. Complete TCS conversion was achieved within 110 min over the 0.5Ag-3Fe/TiO2 catalyst calcined in oxygen. Characterization techniques (XRD, N2 physisorption, H2-TPR, elemental analysis) revealed a strong correlation between the close interaction of silver and iron oxide species and the catalyst's activity and stability. This information could pave the way for the development of high-performance catalysts at ambient temperatures.