Record Details

Synthesis and Characterization of Chitosan-Grafted BPPO Ultrafiltration Composite Membranes with Enhanced Antifouling and Antibacterial Properties

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Synthesis and Characterization of Chitosan-Grafted BPPO Ultrafiltration Composite Membranes with Enhanced Antifouling and Antibacterial Properties
 
Creator FENG, Y
LIN, XC
LI, HZ
HE, LZ
SRIDHAR, T
SURESH, AK
BELLARE, J
WANG, HT
 
Subject BOVINE SERUM-ALBUMIN
PHASE-INVERSION MEMBRANES
ANION-EXCHANGE MEMBRANES
NATURAL ORGANIC-MATTER
POLYSULFONE MEMBRANES
FUEL-CELLS
SURFACE MODIFICATION
PROTEIN ADSORPTION
PLASMA TREATMENT
ACID
 
Description In this study, chitosan was successfully grafted onto the top surface of a bromomethylated poly(phenylene oxide) (BPPO) ultrafiltration membrane without pretreating the membrane at harsh conditions and/or using other cross linkers. Due to the grafting of polar groups of chitosari onto the membrane top surface, the hydrophilicity of the membrane top surface and the polar component of the total surface energy are improved compared to the pristine BPPO membrane. Theoretical calculation shows that the polar component of surface energy is a major contributor to the reduction in interfacial free energy of the membrane surface and interaction strength between foulants and membrane surface Therefore, the foulants adsorbed onto the top surface of chitosan/BPPO composite membranes are much easier to desorb during the cleanning process and as a result, a higher flux recovery was obtained compared to the pristine BPPO membrane, Moreover, due to the antibacterial nature of chitosan, such composite membranes show a better antibacterial property and the antibacterial rate was improved by 70% in comparion with pristine BPPO membrane.
 
Publisher AMER CHEMICAL SOC
 
Date 2014-12-29T05:41:50Z
2014-12-29T05:41:50Z
2014
 
Type Article
 
Identifier INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 53(39)14974-14981
0888-5885
http://dx.doi.org/10.1021/ie502599p
http://dspace.library.iitb.ac.in/jspui/handle/100/17220
 
Language English