PREPARATION OF WATER AND ALKALI DURABLE POROUS-GLASS MEMBRANE COATED ON POROUS ALUMINA TUBING BY SOL-GEL METHOD

被引：23

作者：

YAZAWA, T ^{[1
]}

TANAKA, H ^{[1
]}

NAKAMICHI, H ^{[1
]}

YOKOYAMA, T ^{[1
]}

机构：

[1] SHIKISHIMA CANVAS CO,HIGASHI KU,OSAKA,JAPAN

来源：

JOURNAL OF MEMBRANE SCIENCE | 1991年 / 60卷 / 2-3期

关键词：

COMPOSITE MEMBRANES; MEMBRANE PREPARATION AND STRUCTURE; POROUS GLASS MEMBRANE; WATER AND ALKALI DURABILITY; SOL GEL METHOD; ZIRCONIUM OXIDE; REVERSE OSMOSIS;

D O I：

10.1016/S0376-7388(00)81542-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Composite porous glass membranes were prepared by the sol-gel method. A thin porous glass layer, about 2-mu-m thick, was coated on the surface of the porous ceramic tubing (Al2O3:99.9 wt.%, pore diameter: 200 nm). The composition of the porous glass layer of the composite membrane was SiO2-ZrO2. Considering from the fact that the desalination ratio of the feed aqueous NaCl solution (NaCl 0.5 wt.%) was about 90% by use of these membranes, they were defect-free. The best composition of the porous glass layer was 70 SiO2-30 ZrO2 from the standpoint of preparing membranes. These membranes had a large water and alkali durability. These membranes can be expected to apply to recovering dyes and paints from organic solvents and to be used as a gas separation membrane.

引用

页码：307 / 317

页数：11

共 12 条

[1] POROUS-GLASS DESALINATION MEMBRANES - PHENOMENOLOGICAL TRANSPORT-COEFFICIENTS AND FIXED CHARGE SALT EXCLUSION [J].