Aparna, RathiRathiAparnaPranav, S. S.S. S.PranavGopinadhan, KalonKalonGopinadhan2026-01-122026-01-122025-12-0110.1016/j.desal.2025.1193872-s2.0-105015520422http://repository.iitgn.ac.in/handle/IITG2025/33806Achieving high water permeance while maintaining effective solute rejection remains a critical challenge in polyamide membranes, primarily due to structural inhomogeneities created by conventional interfacial polymerization. Here, we merge diffusion-driven Turing patterning with infrared-assisted water evaporation to achieve better control over its diffusion, addressing this inherent limitation. A nanometer-thin, biodegradable 2D vermiculite gutter layer was used to precisely reduce the monomer diffusion, triggering the “local activation-lateral inhibition” instability that leads to the formation of large area, tube-shaped Turing patterns cloaked in nanobubbles. These periodic patterns enlarge the active area and shorten the transport paths, yielding a pure-water flux of 155 ± 15 L.m⁻².h⁻¹ while simultaneously achieving > 91 % rejection of divalent salts and > 97 % rejection of an organic dye, demonstrating robust performance across both inorganic and organic contaminants. The striped Turing architecture also allows eleven-fold Li⁺/Mg²⁺ selectivity, enabling efficient lithium recovery from salt-lake brines. This approach offers a powerful platform for the development of high-performance, ion- and molecule-selective membranes with significant potential for sustainable water treatment and resource recovery applications.false2D materials | Interlayer | Polyamide membranes | Turing structures | Vermiculite | Water purificationArticle1 December 20250119387arArticle