Anion Ion Exchange Fiber based on Polyacrylonitrile (PAN) Matrixes and Its Selective Adsorption for Heavy Metal Ions

摘要：

The purpose of this paper was to evaluate the capacity of anion ion exchange fiber to uptake the heavy metal(Co2+、Cu2、Zn2+、Cd2+、Pb2+、Ag+) from the water. A new polyamine-type ion exchange fiber (IEF) based on polyacrylonitrile (PAN) with higher exchange capacities was prepared by crosslinking through hydrazine hydrate, followed reacting with diethylene triamine. FT-IR analysis indicated that amine, imido, acylamino and carboxyl groups were introduced into PAN fiber through the surface modified reaction of cross linking and amination. The structures of the IEF were characterized by means of SEM. The results showed that the surface of fiber became rougher and thicker and more heterogeneous. The static and dynamic adsorption experiments demonstrated the high selective adsorption property of the IEF for Ag+ and Cu2+. Furthermore, the adsorption mechanism for the metal ions with IEF was investigated with the FT-IR spectra studies.

关键词： Ion exchange fiber(IEF) Polyacrylonitrile Amino groups Selective adsorption Metalions

作者: Huan Zhang Junfu Wei Haitao Wang Lijuan Mu Fanlei Yan

作者单位: Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process,School of Environment and Che Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process,School of Environment and Che School of Computer,Tianjin Polytechnic University,Tianjin,300160,China

会议类型: 国际会议

会议名称: 2010 International Conference on Material and Manufacturing Technology(2010材料与制造技术国际会议 ICMMT2010)

会议地点: 重庆

会议语种:英文

页码: 430-434

在线出版日期: 2010-09-17（万方平台首次上网日期，不代表论文的发表时间）