Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (01): 85-90.doi: 10.3866/PKU.WHXB19960119

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The Preparation and Characterization of Alumina Membranes Supported by Porous Titanium Plate

Wang Wen-Tao,Zhong Bang-Ke   

  1. Department of Chemistry,Jinan University,Guangzhou 510632
  • Received:1995-02-06 Revised:1995-06-29 Published:1996-01-15
  • Contact: Zhong Bang-Ke

Abstract:

γ-alumine membranes supported by porous titanium plate were prepared by sol-gel techniqe with alumina isopropoxide. The factors, which influenced membrane per formance, in the membrane preparing process were investigated. A dynamic flow-weighted active pore size distribution apparatus for inorganic membrane were set-up on the basis of Kelvine equation. The results showed that for composite porous membrane the active pore size distribution is about 6-8nm, the most probable pore size is about 7nm and nitrogen permeability is 7.1×10-6mol﹒m-2﹒Pa-1﹒s-2.

Key words: Microporous alumina membrane, Sol-gel technique, Preparation of inorganic membrane, Active pore size, Pore size distribution