Mordenite membranes were prepared on the outer surface of ceramic tubular tubes via hydrothermal
synthesis and evaluated for dehydration pervaporation of water unsymmetrical dimethylhydrazine UDMH
mixtures. Highly water-selective mordenite membranes were prepared and the optimum reaction condition
was found to be 24 h crystallization time and 170 °C crystallization temperature. Effect of gel composition on
separation factor and water flux of the water–UDMH mixtures was investigated. X-ray diffraction (XRD)
patterns showed that mordenite is the only zeolite material which presents in the membrane. Morphology of
the supports subjected to crystallization was characterized by Scanning electron microscopy (SEM). In PV of
the water–UDMH mixtures, the membrane exhibits a hydrophilic behavior. The best membranes had a water
flux of 2.67 kg/m2h at 30 °C. The best PV selectivity was obtained to be 264