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<p>This study focuses on developing high-strength, antimicrobial cellulosic fiber from textile waste to tackle sustainability challenges in the textile industry. Through a selective dissolution process, cellulose was efficiently extracted from polyester-cotton blends, one of the most difficult textile waste sources to recycle. This innovative method enables the separation of cotton from synthetic fibers, allowing cellulose to be regenerated via an eco-friendly wet spinning process using only water as the coagulant. The resulting fiber exhibited a uniform morphology and an impressive tenacity of 55.5 ± 1.2 cN/Tex, achieved entirely from recycled waste. In addition to their mechanical strength, these fibers exhibited 99% antimicrobial activity against <i>E. coli</i> and 98% against <i>S. aureus</i> through the incorporation of 0.2% copper nanoparticles (Cu-NPs) relative to the dry cellulose content in the dope. SEM and EDS analyses confirmed the successful integration of Cu-NPs, revealing their homogeneous distribution within the fiber structure. This approach not only presents a sustainable method for transforming textile waste into high-performance functional fiber but also adheres to green chemistry principles by enabling the efficient recycling of the ionic liquid solvent with 99% purity. By combining exceptional mechanical properties with antimicrobial efficacy, this work lays the foundation for advanced bio-based materials suitable for healthcare and hygiene applications.</p>

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Upcycling of textile waste into high-tenacity antimicrobial cellulosic fibers

  • 期刊论文

  • 发表日期：

    2025年9月8日

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  • Blesson Tom Mathew,
  • Archana Samanta

摘要

This study focuses on developing high-strength, antimicrobial cellulosic fiber from textile waste to tackle sustainability challenges in the textile industry. Through a selective dissolution process, cellulose was efficiently extracted from polyester-cotton blends, one of the most difficult textile waste sources to recycle. This innovative method enables the separation of cotton from synthetic fibers, allowing cellulose to be regenerated via an eco-friendly wet spinning process using only water as the coagulant. The resulting fiber exhibited a uniform morphology and an impressive tenacity of 55.5 ± 1.2 cN/Tex, achieved entirely from recycled waste. In addition to their mechanical strength, these fibers exhibited 99% antimicrobial activity against E. coli and 98% against S. aureus through the incorporation of 0.2% copper nanoparticles (Cu-NPs) relative to the dry cellulose content in the dope. SEM and EDS analyses confirmed the successful integration of Cu-NPs, revealing their homogeneous distribution within the fiber structure. This approach not only presents a sustainable method for transforming textile waste into high-performance functional fiber but also adheres to green chemistry principles by enabling the efficient recycling of the ionic liquid solvent with 99% purity. By combining exceptional mechanical properties with antimicrobial efficacy, this work lays the foundation for advanced bio-based materials suitable for healthcare and hygiene applications.