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Magnetic recyclable g-C 3 N 4 /Fe 3 O 4 @MIL-100(Fe) ternary catalyst for photo-Fenton degradation of ciprofloxacin

Journal of Environmental Chemical Engineering, ISSN: 2213-3437, Vol: 10, Issue: 6, Page: 108698
2022
  • 39
    Citations
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    Usage
  • 17
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    39
    • Citation Indexes
      39
  • Captures
    17

Article Description

The slow Fe(III)/Fe(II) cycle rate seriously limits the photo-Fenton degradation efficiency. In this work, a novel g-C 3 N 4 /Fe 3 O 4 @MIL-100(Fe) ternary heterojunction catalyst was prepared via a facile in-situ route under a mild reaction condition, and was further used as a photo-Fenton catalyst for efficient degradation of ciprofloxacin via the synergistic effect. Compared with g-C 3 N 4 and Fe 3 O 4 @MIL-100(Fe), the composite g-C 3 N 4 /Fe 3 O 4 @MIL-100(Fe) exhibited excellent photo-Fenton catalytic activity for high concentration ciprofloxacin (up to 200 mg L −1 ); approximately 94.7% of CIP was degraded within 120 min light irradiation. It is concluded that g-C 3 N 4 can produce photo-generated electron transfer and further accelerate Fe(III)/Fe(II) cycle, leading to an improvement in the degradation efficiency of ciprofloxacin. In addition, the catalyst presents excellent reusability, whereas the removal efficiency of CIP attained 70.0% after three cycles. This study provided a means to enhance the photo-Fenton activity of Fe-MOFs-based catalysts.

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