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<p>The synthesis of a covalent triazine framework polymer (CTF-P) from the polymerization of piperazine and cyanuric chloride is reported in this study. The prepared CTF-P was used as photocatalyst to evaluate its activity for the degradation of ofloxacin (OFL), an emerging concern in water. The material was characterized using N<sub>2</sub> isotherms, XRD, FTIR, TEM, SEM, EDX and DRS-UV–Vis analyses. FESEM and TEM images confirmed that CTF-P exhibits a nanosheet-like structure. The findings showed that 98.6% of OFL would degrade under pseudo-first-order kinetics in 120 min of exposure to 50 W LED light. Quenching tests showed that holes, superoxide, and exited electrons play crucial roles in the degradation of OFL. The recyclable nature of CTF-P was demonstrated over five cycles, maintaining an impressive 88.9% removal efficiency, which showcases the feasibility of the proposed photocatalyst for reuse. The strategic design of photocatalysts based on the CTF framework offers a novel approach to enhancing the degradation of organic pollutants.</p>

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Covalent Triazine Framework Polymer as a Photocatalyst for the Degradation of Ofloxacin under Visible Light Irradiation

  • 期刊论文

  • 发表日期：

    2025年2月8日

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  • Mohammad Bashar,
  • Soheil Sobhanardakani,
  • Mehrdad Cheraghi,
  • Bahareh Lorestani,
  • Behzad Shahmoradi

摘要

The synthesis of a covalent triazine framework polymer (CTF-P) from the polymerization of piperazine and cyanuric chloride is reported in this study. The prepared CTF-P was used as photocatalyst to evaluate its activity for the degradation of ofloxacin (OFL), an emerging concern in water. The material was characterized using N2 isotherms, XRD, FTIR, TEM, SEM, EDX and DRS-UV–Vis analyses. FESEM and TEM images confirmed that CTF-P exhibits a nanosheet-like structure. The findings showed that 98.6% of OFL would degrade under pseudo-first-order kinetics in 120 min of exposure to 50 W LED light. Quenching tests showed that holes, superoxide, and exited electrons play crucial roles in the degradation of OFL. The recyclable nature of CTF-P was demonstrated over five cycles, maintaining an impressive 88.9% removal efficiency, which showcases the feasibility of the proposed photocatalyst for reuse. The strategic design of photocatalysts based on the CTF framework offers a novel approach to enhancing the degradation of organic pollutants.