Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.seppur.2006.03.028
Title: Decolorization of dye-containing aqueous solutions by the polyelectrolyte-enhanced ultrafiltration (PEUF) process using a hollow fiber membrane module
Authors: Tan, X.
Kyaw, N.N.
Teo, W.K. 
Li, K.
Keywords: Decolorization
Hollow fiber Membrane module
Triphenylmethane dye
Ultrafiltration
Issue Date: Nov-2006
Source: Tan, X., Kyaw, N.N., Teo, W.K., Li, K. (2006-11). Decolorization of dye-containing aqueous solutions by the polyelectrolyte-enhanced ultrafiltration (PEUF) process using a hollow fiber membrane module. Separation and Purification Technology 52 (1) : 110-116. ScholarBank@NUS Repository. https://doi.org/10.1016/j.seppur.2006.03.028
Abstract: Polysulfone (PSf) asymmetric hollow fiber membranes with molecular weight cut-off (MWCO) of 13,000 Da have been prepared and employed for removal of the triphenylmethane dyes including malachite green (MG), brilliant green (BG) and new fuchsin (NF) from aqueous solutions. Several water-soluble polymers such as poly(diallydimethyl ammonium chloride) (PDADMAC), poly(sodium-4-styrenesulfonate) (PSS) and polyvinyl alcohol (PVA) have been examined for the polyelectrolyte-enhanced ultrafiltration (PEUF). The experimental results indicate that all the three triphenylmethane-type dyes can be removed effectively using the PSf hollow fiber ultrafiltration membrane with the aid of the anionic PSS polymer. The enhancement is primarily due to the formation of complexes between the anionic polymer and the cationic dye molecules through electrostatic attraction. The cationic and nonionic polymers such as PDADMAC and PVA are not suitable for the decolorization of MG, BG and NF aqueous solutions. The decolorization performances of the PSf membrane module can be fully restored by the back-washing operation using alcohol after each experiment. © 2006 Elsevier B.V. All rights reserved.
Source Title: Separation and Purification Technology
URI: http://scholarbank.nus.edu.sg/handle/10635/63692
ISSN: 13835866
DOI: 10.1016/j.seppur.2006.03.028
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

42
checked on Dec 5, 2017

WEB OF SCIENCETM
Citations

42
checked on Nov 16, 2017

Page view(s)

58
checked on Dec 10, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.