biostudies-literatureUnknown15(12)Widyanto ARPervaporation is a compelling alternative to azeotrope-breaking and solvent dehydration due to lower energy demand and strong selectivity compared with distillation. FAU-type zeolite membranes combine large pore openings and hydrophilic frameworks with robust chemical stability, enabling water-selective separations from alcohols such as isopropanol and ethanol. Despite numerous synthesis routes, the role of seed crystal size in secondary growth, controlling nucleation density, intergrowth, and defect formation remains insufficiently quantified for FAU membranes under identical growth conditions. Here, FAU layers were fabricated on α-Al₂O₃ supports via secondary growth with varying seed sizes in the nanometer-to-micrometer range (72 nm to 6 μm). Zeolite crystal phase pMembranes355https://www.ebi.ac.uk/biostudies/studies/S-EPMC12734560biostudies-literatureEffect of Seed Size on Pervaporation Performances Through FAU Zeolite Membrane.PMC12734560Nomura MWidyanto ARfalseEffect of Seed Size on Pervaporation Performances Through FAU Zeolite Membrane.Pervaporation is a compelling alternative to azeotrope-breaking and solvent dehydration due to lower energy demand and strong selectivity compared with distillation. FAU-type zeolite membranes combine large pore openings and hydrophilic frameworks with robust chemical stability, enabling water-selective separations from alcohols such as isopropanol and ethanol. Despite numerous synthesis routes, the role of seed crystal size in secondary growth, controlling nucleation density, intergrowth, and defect formation remains insufficiently quantified for FAU membranes under identical growth conditions. Here, FAU layers were fabricated on α-Al₂O₃ supports via secondary growth with varying seed sizes in the nanometer-to-micrometer range (72 nm to 6 μm). Zeolite crystal phase p2025-01-01T00:00:00Z2025 Nov2026-06-08T03:12:06.545Z2026-06-08T03:08:21.952ZS-EPMC127345604144105810.3390/membranes15120355