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Porous silica-zirconia membranes were fabricated by the sol-gel techniques to study their stability against water and the pervaporation performance of aqueous solutions of organic solvents. Zirconia (10-70mol%) was added to silica to obtain silica-zirconia composite membranes by firing at 400-500 o C for pervaporation tests with organic solvent/water mixtures, such as iso-propyl alcohol (IPA)/water...
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