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Effective Removal of Calcium Ions from Simulated Hard Water Using Electrospun Polyelectrolyte Nanofibrous Mats
被引:18
作者:
Xiao, Shili
[1
]
Luo, Xiaoyao
[1
]
Peng, Qingyan
[1
]
Deb, Hridam
[1
]
机构:
[1] Wuhan Text Univ, Sch Text Sci & Engn, Wuhan 430073, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Polyelectrolyte nanofiber;
Electrospinning;
Hard water treatment;
Ca(II) ions;
LOW-PRESSURE WATER;
HOLLOW-FIBER MEMBRANES;
AQUEOUS-SOLUTION;
NANOFILTRATION MEMBRANES;
ADSORPTION;
CA2+;
SEAWATER;
MG(II);
CA(II);
CARBON;
D O I:
10.1007/s12221-016-6440-9
中图分类号:
TB3 [工程材料学];
TS1 [纺织工业、染整工业];
学科分类号:
0805 ;
080502 ;
0821 ;
摘要:
The development of easily separated from water, high effective mineral ion removal materials is quite required in the hard water treatment system. In this study, water-stable polyelectrolyte polyacrylic acid (PAA) nanofibrous mats were fabricated by electrospinning technology and subsequent thermal crosslinking. Influence factors such as contact time, mat content, temperature and interfering ions strength were experimentally examined. The results indicated that polyelectrolyte PAA nanofibrous mats could be used as high effective Ca(II) ions removal material via complexation to form PAA-COOCa2+ complex, with a maximum Can ion removal capacity of 152.8 mg/g within 60 min at 25 degrees C. Both equilibrium and kinetic studies showed that the behaviors of Ca(II) ions removal by polyelectrolyte nanofibrous mats followed Freundlich model and fitted pseudo-second-order model, respectively.
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页码:1428 / 1437
页数:10
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