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<p>In this study, Fe doped NaTaO<sub>3</sub> (Fe-NTO) catalysts were synthesized via a one-step hydrothermal reaction process, and the influence of Fe doping on their photo-Fenton catalytic efficiency in tetracycline hydrochloride (TCH) removal was examined under UV light illumination. It was observed that Fe doping can effectively enhance UV light absorption, accelerate charge transfer, as well as promote H<sub>2</sub>O<sub>2</sub> activation. As expected, the incorporation of Fe into NTO significantly improved its photo-Fenton catalytic activity. The degradation rate of the optimized 1% Fe-NTO catalyst (35.35%) was 2.46 times that of pure NTO. The active species including •OH, •O<sub>2</sub><sup>−</sup> and h<sup>+</sup> play major roles for TCH photo-Fenton decomposition. The present work offers a feasible strategy to improve the catalytic activity of NaTaO<sub>3</sub> based catalysts for photo-Fenton decomposition of organic pollutants in wastewater.</p>

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Efficient degradation of tetracycline over Fe doped NaTO3 via H2O2 activation and photocatalysis

  • 期刊论文

  • 发表日期：

    2026年6月22日

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  • Ameha Gebrewold,
  • Haoyu Wang,
  • Yan Guo,
  • Hongru Han,
  • Yuefa Jia

摘要

In this study, Fe doped NaTaO3 (Fe-NTO) catalysts were synthesized via a one-step hydrothermal reaction process, and the influence of Fe doping on their photo-Fenton catalytic efficiency in tetracycline hydrochloride (TCH) removal was examined under UV light illumination. It was observed that Fe doping can effectively enhance UV light absorption, accelerate charge transfer, as well as promote H2O2 activation. As expected, the incorporation of Fe into NTO significantly improved its photo-Fenton catalytic activity. The degradation rate of the optimized 1% Fe-NTO catalyst (35.35%) was 2.46 times that of pure NTO. The active species including •OH, •O2− and h+ play major roles for TCH photo-Fenton decomposition. The present work offers a feasible strategy to improve the catalytic activity of NaTaO3 based catalysts for photo-Fenton decomposition of organic pollutants in wastewater.