The influence of membrane formation parameters on the functional performance of organic solvent nanofiltration membranes

被引：131

作者：

See-Toh, Yoong Hsiang ^{[1
]}

Ferreira, Frederico Castelo ^{[1
]}

Livingston, Andrew G. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn & Chem Technol, London SW7 2AZ, England

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 299卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

polyimide; organic solvent nanofiltration; MWCO; pore flow; solution diffusion;

D O I：

10.1016/j.memsci.2007.04.047

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This paper reports the effects of changing membrane formation parameters, including polymer concentration, evaporation time and post casting annealing, on transport through integrally skinned asymmetric polyimide organic solvent nanotiltration membranes. The molecular weight cut off curve was most significantly affected by changes in the polymer concentration of the casting solution. Flux was observed to be sensitive to variations in several formation parameters. Scanning electron micrographs show three different morphologies present in the membranes, with a nanoporous nodular structure present at the top surface. The experimental transport data was interpreted using the intrinsic membrane parameters of permeability and pore size in the solution diffusion and pore flow models, respectively. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：236 / 250

页数：15

共 49 条

[1]

[Anonymous], [No title captured], Patent No. 5264166

[2]

[Anonymous], [No title captured], Patent No. 6180008

[3]

[Anonymous], [No title captured], Patent No. 5205934

[4]

Baker R. W., 2004, MEMBRANE TECHNOLOGY

[5]

BEERLAGE MAM, 1994, THESIS U TWENTE ESCH

[6] Plasticization-resistant glassy polyimide membranes for CO2/CO4 separations [J].

Bos, A ;

Punt, IGM ;

Wessling, M ;

Strathmann, H .

SEPARATION AND PURIFICATION TECHNOLOGY, 1998, 14 (1-3) :27-39

[7] Characterisation of nanofiltration membranes for predictive purposes - Use of salts, uncharged solutes and atomic force microscopy [J].

Bowen, WR ;

Mohammad, AW ;

Hilal, N .

JOURNAL OF MEMBRANE SCIENCE, 1997, 126 (01) :91-105

[8] Modelling the performance of membrane nanofiltration - critical assessment and model development [J].

Bowen, WR ;

Welfoot, JS .

CHEMICAL ENGINEERING SCIENCE, 2002, 57 (07) :1121-1137

[9] Influence of hydrophobicity on retention in nanofiltration of aqueous solutions containing organic compounds [J].

Braeken, L ;

Ramaekers, R ;

Zhang, Y ;

Maes, G ;

Van der Bruggen, B ;

Vandecasteele, C .

JOURNAL OF MEMBRANE SCIENCE, 2005, 252 (1-2) :195-203

[10] Directed development of high-performance membranes via high-throughput and combinatorial strategies [J].

Bulut, M ;

Gevers, LEM ;

Paul, JS ;

Vankelecom, NFJ ;

Jacobs, PA .

JOURNAL OF COMBINATORIAL CHEMISTRY, 2006, 8 (02) :168-173

← 1 2 3 4 5 →