Scholarlink

<p>Catalytically powered micro-/nanomotors have become a compelling alternative to conventional catalysts for active and efficient removal of environmental pollutants in water remediation. We developed a novel biocatalytic nanomotor system by encapsulating catalase and peroxidase enzymes into metal–organic frameworks (MOFs), demonstrating exceptional speed and facilitated motion-induced convection and mass transfer. Leveraging a synergistic structural etching and surface engineering strategy using tannic acid (TA), we create a tailored microenvironment of the MOF’s framework with charge-selective and nanoconfinement properties. Both experimental and simulation results indicate that microenvironment modulation of MOF matrix could act in synergy with the encapsulated enzymes and significantly improve efficiency and selectivity in removing charged pollutants. Surface engineering of TA selectively preconcentrates target contaminants by modulating the MOF shell's surface charge, while etching-induced voids facilitate rapid mass transfer to the enzyme active sites. Finally, we also validated the applicability of these nanomotors in the transformative removal of pollutants from the aqueous phase into polymeric products via an enzyme-mediated polymerization pathway. This biocatalytic nanomotor system provides a promising water remediation paradigm for reducing carbon emissions and recycling chemical energy from emerging contaminants.</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

Microenvironment-Engineered Biocatalytic Metal–Organic Framework Nanomotors for Selective and Transformative Water Decontamination

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年1月26日

查看全文
  • Shu Xu,
  • Jueyi Xue,
  • Linyun Bao,
  • Joel Yong,
  • Ying Cao,
  • Jun Ma,
  • Kang Liang

摘要

Catalytically powered micro-/nanomotors have become a compelling alternative to conventional catalysts for active and efficient removal of environmental pollutants in water remediation. We developed a novel biocatalytic nanomotor system by encapsulating catalase and peroxidase enzymes into metal–organic frameworks (MOFs), demonstrating exceptional speed and facilitated motion-induced convection and mass transfer. Leveraging a synergistic structural etching and surface engineering strategy using tannic acid (TA), we create a tailored microenvironment of the MOF’s framework with charge-selective and nanoconfinement properties. Both experimental and simulation results indicate that microenvironment modulation of MOF matrix could act in synergy with the encapsulated enzymes and significantly improve efficiency and selectivity in removing charged pollutants. Surface engineering of TA selectively preconcentrates target contaminants by modulating the MOF shell's surface charge, while etching-induced voids facilitate rapid mass transfer to the enzyme active sites. Finally, we also validated the applicability of these nanomotors in the transformative removal of pollutants from the aqueous phase into polymeric products via an enzyme-mediated polymerization pathway. This biocatalytic nanomotor system provides a promising water remediation paradigm for reducing carbon emissions and recycling chemical energy from emerging contaminants.