Abstract Synthetic polymer membranes can potentially reduce the large energy and carbon footprints that are typically associated with traditional chemical separation technologies. Unfortunately, current production protocols negate the green benefits of membrane separation. To address this bottleneck, here we report the use of natural materials monosaccharide – glucose and polydopamine and Zr-based metal organic frameworks (MOFs) to fabricate ultrathin nanocomposite membranes via interfacial polymerization reaction. The synergistic effect of these three materials on angstrom-scale molecular transport both in organic solvent and aqueous environment was elucidated using a series of complementary techniques. We demonstrate such nature-inspired nanocomposite membranes enable structural stability even in polar aprotic solvents, and unparalleled ultra-fast, low-pressure, precise separations in both nanofiltration modes, which easily surpass state-of-the-art membranes relying on unsustainable materials. The multi-functionality of saccharide nanocomposites was elegantly harnessed to impact separation applications that contribute towards a better living environment.

中文翻译：

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坚固的天然纳米复合材料实现前所未有的超快精确分子分离

摘要 合成聚合物膜可以潜在地减少通常与传统化学分离技术相关的大量能源和碳足迹。不幸的是，目前的生产协议否定了膜分离的绿色优势。为了解决这个瓶颈，我们在这里报告了使用天然材料单糖 - 葡萄糖和聚多巴胺以及基于 Zr 的金属有机框架 (MOF) 通过界面聚合反应制造超薄纳米复合膜。使用一系列互补技术阐明了这三种材料在有机溶剂和水性环境中对埃级分子传输的协同作用。我们证明了这种受自然启发的纳米复合膜即使在极性非质子溶剂中也能保持结构稳定性，和无与伦比的超快速、低压、两种纳滤模式下的精确分离，这很容易超越依赖不可持续材料的最先进的膜。糖类纳米复合材料的多功能性被巧妙地用于影响有助于改善生活环境的分离应用。