Synthesis and characterisation of titanosilicate ETS-10 membranes

resumo

Titanosilicate ETS-10 membranes have been prepared on porous alpha-alumina and stainless steel tubular supports by seeded hydrothermal synthesis. The influence of synthesis conditions has been studied, and pure ETS-10 membranes approximate to5 mum 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 degreesC a water/ethanol separation factor up to 12 and a water flux of 1.1 kg/(m(2) h). (C) 2003 Elsevier Inc. All rights reserved.

palavras-chave

ZEOLITE MEMBRANES; PERMEATION PROPERTIES; STRUCTURAL-CHARACTERIZATION; PERVAPORATION PERFORMANCE; COMPOSITE MEMBRANES; TUBULAR MEMBRANES; MCM-48 MEMBRANE; SEPARATION; FILMS; SILICATES

categoria

Chemistry; Science & Technology - Other Topics; Materials Science

autores

Lin, Z; Rocha, J; Navajas, A; Tellez, C; Coronas, J; Santamaria, J

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