Scholarlink

<p>Precise functionalization of heterogeneous interfaces in nanofibers is essential for advanced personal protective membranes. Here, we demonstrate a hierarchically heterogeneous interface structuring (HHIS) strategy to fabricate microenvironment-regulating and self-decontaminating meta-membranes (MRSD-PLA) by embedding zeolitic imidazolate framework-8 (ZIF-8) nanocrystals within poly(lactic acid) (PLA) fibers and anchoring F-TiO<sub>2</sub> nanoblocks on their surfaces, creating an electronegativity contrast that directs electron migration and charge redistribution. ZIF-8 of porosity and electroactivity could enable charge capture/storage and trans-membrane transport (water vapor transmission rate: 4018 g·m⁻<sup>2</sup>·d⁻<sup>1</sup>; air permeability &gt; 60 mm·s⁻<sup>1</sup> at 100 Pa). Combined with the hydrophobicity and self-cleaning capability from F-TiO<sub>2</sub>, a sustained charge migration establishes a closed-loop capture-storage-regeneration cycle. This results in self-powered sensitive monitoring and a high PM<sub>0.3</sub> filtration efficiency of 99.3% yet a low pressure drop of 51.9 Pa (quality factor: 0.11 Pa⁻<sup>1</sup>). Moreover, MRSD-PLA inhibit bacterial growth and balance robust mechanical strength with biodegradability, showcasing great potential for high-performance personal protection.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Hierarchically heterogeneous interface structuring strategy for microenvironment-regulating and self-decontaminating biodegradable meta-membranes

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年5月8日

查看全文
  • Shao-Zhen Wang,
  • Xinjian He,
  • Xing-Hua Wei,
  • Guiying Zhu,
  • Jia-Lian Gao,
  • Zhuang Huang,
  • Yue Zhao,
  • Xiao-Peng Li,
  • Jiefeng Gao,
  • Huan Xu

摘要

Precise functionalization of heterogeneous interfaces in nanofibers is essential for advanced personal protective membranes. Here, we demonstrate a hierarchically heterogeneous interface structuring (HHIS) strategy to fabricate microenvironment-regulating and self-decontaminating meta-membranes (MRSD-PLA) by embedding zeolitic imidazolate framework-8 (ZIF-8) nanocrystals within poly(lactic acid) (PLA) fibers and anchoring F-TiO2 nanoblocks on their surfaces, creating an electronegativity contrast that directs electron migration and charge redistribution. ZIF-8 of porosity and electroactivity could enable charge capture/storage and trans-membrane transport (water vapor transmission rate: 4018 g·m⁻2·d⁻1; air permeability > 60 mm·s⁻1 at 100 Pa). Combined with the hydrophobicity and self-cleaning capability from F-TiO2, a sustained charge migration establishes a closed-loop capture-storage-regeneration cycle. This results in self-powered sensitive monitoring and a high PM0.3 filtration efficiency of 99.3% yet a low pressure drop of 51.9 Pa (quality factor: 0.11 Pa⁻1). Moreover, MRSD-PLA inhibit bacterial growth and balance robust mechanical strength with biodegradability, showcasing great potential for high-performance personal protection.