Scholarlink

<p>The removal of organic pollutants, such as antibiotics and dyes, is crucial for addressing water pollution. In this study, NH<sub>2</sub>-MIL-53(Fe)/TiO<sub>2</sub> heterogeneous catalysts were synthesized via a solvothermal method. Experimental results demonstrated that the composite labeled NMT-2.5 (with a mass ratio of NH₂-MIL-53(Fe) to TiO<sub>2</sub> of 2.5:100) exhibited excellent performance in activating persulfate for photocatalytic degradation. Specifically, it achieved a degradation rate of 80% for ciprofloxacin (CIP), 71% for tetracycline (TC), and nearly 100% for rhodamine B (RhB) and other dyes. The enhanced performance is attributed to the composite’s improved light absorption and the formation of a heterojunction. This heterojunction not only reduces interfacial charge-transfer resistance but also enhances carrier separation efficiency, thereby accelerating the Fe/Fe<sup>2+</sup> cycle. As a result, the activation of persulfate by the transition metal is enhanced, leading to increased generation of active free radicals.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Photocatalysis collaborates with advanced oxidation technology to promote NH2-MIL-53(Fe)/TiO2 degradation of organic pollutants

  • 期刊论文

  • 发表日期：

    2026年5月21日

查看全文
  • Tie Shi,
  • Bo Gong,
  • Daimei Chen,
  • Zetian He,
  • Hao Ding,
  • Sijia Sun,
  • Yilei Li

摘要

The removal of organic pollutants, such as antibiotics and dyes, is crucial for addressing water pollution. In this study, NH2-MIL-53(Fe)/TiO2 heterogeneous catalysts were synthesized via a solvothermal method. Experimental results demonstrated that the composite labeled NMT-2.5 (with a mass ratio of NH₂-MIL-53(Fe) to TiO2 of 2.5:100) exhibited excellent performance in activating persulfate for photocatalytic degradation. Specifically, it achieved a degradation rate of 80% for ciprofloxacin (CIP), 71% for tetracycline (TC), and nearly 100% for rhodamine B (RhB) and other dyes. The enhanced performance is attributed to the composite’s improved light absorption and the formation of a heterojunction. This heterojunction not only reduces interfacial charge-transfer resistance but also enhances carrier separation efficiency, thereby accelerating the Fe/Fe2+ cycle. As a result, the activation of persulfate by the transition metal is enhanced, leading to increased generation of active free radicals.