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Preparation of Hydrophobic Silicalite-1/zein Membrane
and Pervaporation Separation of Ethanol / Water Mixtures
Authors： Ma Ya-lu1 , Li Yu-ting2 , Wang Feng2 , Wang Peng2 , Li Guo-shu1 , Fang Wu-cheng1
Units： 1Department of Chemistry, Institute of Science, Tianjin University;
KeyWords： silicalite-1/zein composite membrane; surface modification; pervaporation; separation of ethanol and water
ClassificationCode：TQ028.8
year,volume(issue):pagination： 2013, 33(4):42-46

Abstract：

Hydrophobic silicalite-1/zein composite membrane supported on a porous alumina tablet was prepared by spin coating process. Surface modification by hexamethyldisilazane and ball-milling processes could improve the dispersivity and homogeneity of silicalite-1 particles in zein ethanol solution. The homogeneous silicalite-1/zein composite membrane has an average thickness of 10μm. The pervaporation experiments show that silicalite-1/zein composite membrane can effectively concentrate ethanol from 3% and 5% ( mass fraction ) ethanol feed by pervaporation process. The total permeation fluxes and separation factors of ethanol at 303K and 313K are from 0.73 to 0.82kg.m-2.h-1 and from 4.5 to 8.7, respectively.

Funds：
国家自然科学基金（50972103）；教育部留学回国人员科研启动基金（2009-1001）；国家级大学生创新训练项目

AuthorIntro：
马亚鲁（1969-），女，河北省故城县人，博士，副教授，从事功能性复合膜材料的设计、制备与应用研究。?联系人

Reference：

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