聚苯胺纳米纤维/Fe3 O4纳米粒子磁性复合材料对水中痕迹量 Pb2+的吸附及快速分离性能

摘要

用静电自组装的方法制备聚苯胺纳米纤维/Fe3 O 4纳米粒子多功能复合材料，并研究该材料在水体系中对重金属离子的吸附及快速磁分离性能。结果表明：聚苯胺纳米纤维/Fe3 O 4纳米粒子多功能复合材料在水溶液中大部分稳定存在，不溶解也无明显团聚现象，对重金属离子有较好的吸附性能；HNO 3溶液可将重金属离子从聚苯胺纳米纤维/Fe3 O 4纳米粒子多功能复合材料上解吸附以实现重复使用，且该解吸过程不破坏其物理结构。%Multifunctional polyaniline nanofibre/Fe3 O 4 nanoparticle hybrids were synthesized by a simple self-assembly method.The application of the nanocomposite in the adsorption of trace amount of Pb2 + in water was investigated.The excellent dispersability of the nanocomposite in water and small size of the subunits ensure its fast adsorption of metal ions in water.The magnetic properties and high chemical stability also endow the nanocomposite with excellent reusability,with the help of acid washing by HNO 3 solution.