Abstract:
采用静态聚电解质层层自组装(LbL)技术,以表面处理的PAN 超滤膜为基膜,进行聚电解质聚乙烯亚胺(PEI)/聚苯乙烯磺酸钠(PSS)交替沉积制备纳滤膜,研究了聚电解质组装时其表面电荷及润湿性的变化,考察了该纳滤膜对一价、二价电解质溶液及Ni2+,Cd2+等重金属离子的截留性能.结果表明,当表面组装4双层后,制得的PEI/ PSS 多层聚电解质复合纳滤膜在室温条件下,0.4MPa 时,对不同离子溶液截留率如图所示,大小依次是:NiCl2>CdCl2>MgSO4>K2SO4>CaCl2>KCl>NaCl.
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Year: 2012
Page: 6-6
Language: Chinese
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WanFang Cited Count: -1
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30 Days PV: 11