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<p>We developed a simple, water-based approach to produce flame-retardant and antimicrobial cotton fabrics using phosphorus-functionalized ZIF-8 nanoparticles and tannic acid (TA). The composite was synthesized via a one-step process, where TA forms coordinate bonds with metal ions on the ZIF-8 surface, ensuring uniform deposition on the cotton fabric. The bio-based TA-PA-ZIF-8@cotton demonstrated enhanced flame retardancy, achieving a limiting oxygen index of 32% and a char length of only 1.5&#xa0;cm in the vertical flame test. Additionally, the modified fabric exhibited strong antimicrobial activity against E. coli and S. aureus, highlighting its potential for multifunctional textile applications.</p>

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Synergetic flame retardant and antimicrobial cotton fabrics via phosphorus-incorporated core–shell particles

  • 期刊论文

  • 发表日期：

    2025年8月22日

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  • Anuja P. Rananavare,
  • Jaewoong Lee

摘要

We developed a simple, water-based approach to produce flame-retardant and antimicrobial cotton fabrics using phosphorus-functionalized ZIF-8 nanoparticles and tannic acid (TA). The composite was synthesized via a one-step process, where TA forms coordinate bonds with metal ions on the ZIF-8 surface, ensuring uniform deposition on the cotton fabric. The bio-based TA-PA-ZIF-8@cotton demonstrated enhanced flame retardancy, achieving a limiting oxygen index of 32% and a char length of only 1.5 cm in the vertical flame test. Additionally, the modified fabric exhibited strong antimicrobial activity against E. coli and S. aureus, highlighting its potential for multifunctional textile applications.