Abstract
Titanosilicate ETS-10 membranes have been prepared on porous α-alumina and stainless steel tubular supports by seeded hydrothermal synthesis. The influence of synthesis conditions has been studied, and pure ETS-10 membranes ≈5 μm thick were synthesised, exhibiting a good intergrowth of crystals. The membranes have been characterised by X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectrometry and X-ray mapping. Pervaporation experiments have been performed, yielding at 150 °C a water/ethanol separation factor up to 12 and a water flux of 1.1 kg/(m 2 h).
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