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本文以正三酸乙酯（TEOS）和硝酸铝为原料，用溶胶-凝胶法制备了支撑和无支撑的莫来石膜．用DTA－TG、XRD：、SEM和BET等分析手段对莫来石膜的结构、形貌及孔径进行了表征，结果表明，非晶态凝胶膜在1050℃热处理后转变为莫来石膜，无支撑莫来石最可几孔径为371nm．
In this paper, supported and unsupported mullite membranes were prepared by sol-gel method using TEOS and aluminum nitrate as raw materials. The structure, morphology and pore size of mullite membrane were characterized by DTA-TG, XRD, SEM and BET. The results showed that the amorphous gel membrane was transformed into mullite membrane after heat treatment at 1050 ℃ , Unsupported mullite most can be several aperture 371nm.