共 37 条
Tris(hydroxymethyl)aminomethane-grafted polyamine nanofiltration membrane: enhanced antifouling and pH resistant properties
被引:7
作者:
Daneshvar, H.
[1
]
Dorraji, M. S. Seyed
[1
]
Rasoulifard, M. H.
[1
]
Ahmadi, A.
[1
]
Nooshiran-Zadeh, N.
[1
]
机构:
[1] Univ Zanjan, Appl Chem Res Lab, Dept Chem, Zanjan, Iran
关键词:
THIN-FILM COMPOSITE;
INTERFACIAL POLYMERIZATION;
SURFACE MODIFICATION;
POLYVINYLAMINE PVAM;
OSMOSIS MEMBRANES;
CYANURIC CHLORIDE;
PERFORMANCE;
DIAMINE;
PURIFICATION;
SEPARATION;
D O I:
10.1039/c9nj06352h
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In this study, to fabricate a pH resistant membrane with antifouling properties, a Tris-grafted polyamine thin film composite (TFC) membrane has been synthesized. The prepared membranes were characterized by ATR-FTIR, FESEM, AFM, and water contact angle analysis. The reaction of Tris and residual chloride groups was conducted on the surface of the TFC to enhance the hydrophilicity and antifouling properties of the membrane. The effect of reaction temperature and reaction time on the hydrophilicity, membrane flux, rejection, and antifouling properties was evaluated. The modified membrane exhibited a flux of 48.17 L m(-2) h(-1) and FRR of 83%. Compared to the unmodified membrane with a flux of 26.23 L m(-2) h(-1) and FRR of 27.67%, surface modification by Tris-grafting had a significant impact on the polyamine TFC membrane hydrophilicity and antifouling properties. The pH resistance test shows that the Tris-grafted polyamine membrane can operate up to one month in harsh chemical conditions without a significant change in membrane performance.
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页码:6321 / 6330
页数:10
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