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<p>Nanofiltration membranes with confined nanopores are vital for energy-efficient molecular and ionic sieving towards sustainable ecosystems. However, the production of contemporary nanofiltration membranes still relies on hazardous petrochemical-based chemicals, raising serious water contamination concerns and complicating after-usage disposal. This phenomenon contradicts the sustainability of membranes derived from green chemistry principles, emphasizing not only their eco-friendly application but also their preparation and end of life. Here we report the synthesis of a sustainable nanofiltration membrane (SNFM) with superior performance for water treatment and an inherent natural soil degradation mechanism through a safer approach utilizing integrated low-hazard chemicals. Experiments and simulations confirmed that our SNFM can be fabricated in an environmentally friendly manner and decomposed by natural soil microorganisms, contributing to its distinctive eco-friendliness. Notably, the SNFM demonstrated both exceptional water permeance and molecular and ionic sieving capability, outperforming commercial and state-of-the-art membranes. This approach establishes a new paradigm for next-generation water recycling and sustainable chemical processes.</p>

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Sustainable nanofiltration membranes enable ultrafast water purification

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月17日

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  • Junhui Huang,
  • Mu Yuan,
  • Yanqiu Zhang,
  • Jing Guo,
  • Luqiao Feng,
  • Shan Qiu,
  • Cher Hon Lau,
  • Lu Shao,
  • Huanting Wang

摘要

Nanofiltration membranes with confined nanopores are vital for energy-efficient molecular and ionic sieving towards sustainable ecosystems. However, the production of contemporary nanofiltration membranes still relies on hazardous petrochemical-based chemicals, raising serious water contamination concerns and complicating after-usage disposal. This phenomenon contradicts the sustainability of membranes derived from green chemistry principles, emphasizing not only their eco-friendly application but also their preparation and end of life. Here we report the synthesis of a sustainable nanofiltration membrane (SNFM) with superior performance for water treatment and an inherent natural soil degradation mechanism through a safer approach utilizing integrated low-hazard chemicals. Experiments and simulations confirmed that our SNFM can be fabricated in an environmentally friendly manner and decomposed by natural soil microorganisms, contributing to its distinctive eco-friendliness. Notably, the SNFM demonstrated both exceptional water permeance and molecular and ionic sieving capability, outperforming commercial and state-of-the-art membranes. This approach establishes a new paradigm for next-generation water recycling and sustainable chemical processes.