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<p>Methylene blue (MB) is an environmental pollutant that harms the environment and human health due to excessive use and poor natural degradation in water. In the present study, a new heterojunction structure for catalysis was developed. A chitosan-ZIF-8 green nanomaterial was fabricated via electrospinning to degrade MB photocatalytically. ZIF-8 enhanced the specific surface area and electron conductivity of the material, thus boosting photocatalytic efficiency. Higher ZIF-8 content raised photocatalytic efficiency notably, with 0.5&#xa0;g ZIF-8 achieving 98.13% MB degradation in 25&#xa0;min. The material also demonstrated strong repeatability and stability, maintaining 96.5% degradation efficiency after 30&#xa0;days in air. This study produced an efficient low-cost novel material for environmental and water treatment applications.</p>

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Green Synthesis of ZIF-8/Chitosan Nanofiber Membranes for Catalytic Degradation of Methylene Blue

  • 期刊论文

  • 发表日期：

    2025年10月4日

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  • Guosheng Liang,
  • Tianyu Wang,
  • Tingfan Tang,
  • Jun Feng,
  • Wenyi Huang,
  • Yao Lu,
  • Hao Cheng

摘要

Methylene blue (MB) is an environmental pollutant that harms the environment and human health due to excessive use and poor natural degradation in water. In the present study, a new heterojunction structure for catalysis was developed. A chitosan-ZIF-8 green nanomaterial was fabricated via electrospinning to degrade MB photocatalytically. ZIF-8 enhanced the specific surface area and electron conductivity of the material, thus boosting photocatalytic efficiency. Higher ZIF-8 content raised photocatalytic efficiency notably, with 0.5 g ZIF-8 achieving 98.13% MB degradation in 25 min. The material also demonstrated strong repeatability and stability, maintaining 96.5% degradation efficiency after 30 days in air. This study produced an efficient low-cost novel material for environmental and water treatment applications.