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<p>This study investigates the photocatalytic degradation of Moxifloxacin (MOX), a fluoroquinolone antibiotic, using a synthesized photocatalyst composed of g-C<sub>3</sub>N<sub>4</sub>/Ti<sub>3</sub>C<sub>2</sub>/Sm<sub>2</sub>O<sub>3</sub>&#xa0;(GTS). The photocatalyst was prepared by a simple Co-precipitation and characterized using various analytical techniques. The FE-SEM results revealed a cluster-like morphology with average particle sizes from 20 to 40 nm. The Tauc-plot analysis yields a band gap of 2.8 eV, indicating that the material is responsive to visible-light irradiation. AFM analysis determined the catalyst’s average surface roughness to be 127.1 nm. The degradation efficiency of GTS was assessed, yielding an impressive 99.50% degradation rate after 300 min under optimal conditions (pH = 6.8, catalyst dosage = 10 mg, and Moxifloxacin concentration = 10 ppm). Notably, GTS exhibited enhanced photocatalytic activity under visible light. These findings suggest that the GTS photocatalyst is highly effective in degrading MOX antibiotics under visible light, highlighting its potential for practical applications in eliminating fluoroquinolone antibiotics.</p>

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Nanogeochemical photocatalysis for mitigating antibiotic pollution for visible-light degradation of moxifloxacin via rare-earth-integrated MXene/g-C3N4 heterostructures

  • 期刊论文

  • 发表日期：

    2026年2月18日

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  • D. Vasvini Mary,
  • Arunmetha Sundaramoorthy,
  • S. Rubesh Ashok Kumar,
  • P. Saravanan,
  • Subha Balamurugan,
  • G. A. Suganya Josephine,
  • Subhav Singh,
  • Mir Waqas Alam,
  • Krishna Prakash Arunachalam

摘要

This study investigates the photocatalytic degradation of Moxifloxacin (MOX), a fluoroquinolone antibiotic, using a synthesized photocatalyst composed of g-C3N4/Ti3C2/Sm2O3 (GTS). The photocatalyst was prepared by a simple Co-precipitation and characterized using various analytical techniques. The FE-SEM results revealed a cluster-like morphology with average particle sizes from 20 to 40 nm. The Tauc-plot analysis yields a band gap of 2.8 eV, indicating that the material is responsive to visible-light irradiation. AFM analysis determined the catalyst’s average surface roughness to be 127.1 nm. The degradation efficiency of GTS was assessed, yielding an impressive 99.50% degradation rate after 300 min under optimal conditions (pH = 6.8, catalyst dosage = 10 mg, and Moxifloxacin concentration = 10 ppm). Notably, GTS exhibited enhanced photocatalytic activity under visible light. These findings suggest that the GTS photocatalyst is highly effective in degrading MOX antibiotics under visible light, highlighting its potential for practical applications in eliminating fluoroquinolone antibiotics.