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<p>The widespread use of antibiotics and their release into the environment pose significant environmental challenges due to their potential hazards. This study developed a Cd-TiO<sub>2</sub> nanowires (NWs)/porous graphitic carbon nitride (pg-C<sub>3</sub>N<sub>4</sub>) (xM-yU) photocatalyst to address this issue. The photocatalyst was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), photoluminescence (PL), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), and specific surface area (SSA) analyses. The photocatalytic degradation efficiency of erythromycin was evaluated, with key parameters—pH, erythromycin concentration, photocatalyst dosage, radiation source, and irradiation time—optimized to determine the most effective conditions. Under optimal conditions, erythromycin degradation reached 98.2%. The results revealed that 10&#xa0;mg·L<sup>−1</sup> of erythromycin at pH 4, combined with 70&#xa0;mg of photocatalyst, yielded the highest efficiency. After five cycles of reuse, the photocatalyst maintained suitable stability and high degradation performance. These findings highlight the potential of Cd-TiO<sub>2</sub> NWs/pg-C<sub>3</sub>N<sub>4</sub> as an effective solution for antibiotic removal from aqueous environments. </p>

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Cd-TiO2 nanowires/pg-C3N4 nanosheets photocatalysis used for the erythromycin scavenging from aqueous solutions

  • 期刊论文

  • 发表日期：

    2025年5月27日

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  • Somayeh Zalani,
  • Fereshteh Abbasi,
  • Nabiollah Mansouri,
  • Zahra Abbasi,
  • Ali Mashinchian Moradi

摘要

The widespread use of antibiotics and their release into the environment pose significant environmental challenges due to their potential hazards. This study developed a Cd-TiO2 nanowires (NWs)/porous graphitic carbon nitride (pg-C3N4) (xM-yU) photocatalyst to address this issue. The photocatalyst was characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), photoluminescence (PL), dynamic light scattering (DLS), Fourier transform infrared spectroscopy (FT-IR), and specific surface area (SSA) analyses. The photocatalytic degradation efficiency of erythromycin was evaluated, with key parameters—pH, erythromycin concentration, photocatalyst dosage, radiation source, and irradiation time—optimized to determine the most effective conditions. Under optimal conditions, erythromycin degradation reached 98.2%. The results revealed that 10 mg·L−1 of erythromycin at pH 4, combined with 70 mg of photocatalyst, yielded the highest efficiency. After five cycles of reuse, the photocatalyst maintained suitable stability and high degradation performance. These findings highlight the potential of Cd-TiO2 NWs/pg-C3N4 as an effective solution for antibiotic removal from aqueous environments.