改性聚丙烯腈纤维与金属离子的配位反应及其应用进展

为解决聚丙烯腈（PAN）纤维在产业用纺织品应用中存在的问题，介绍了腈基通过多种化学反应在PAN纤维表面引入偕胺肟基、胺基、羧基以及其他配位基团的改性方法，比较了不同改性PAN 纤维与过渡金属离子或稀土金属离子的配位反应模式及其所生成配合物的分子结构和特性，评述了多种改性PAN纤维在重金属离子去除、微量金属离子检测、稀有金属和贵金属离子浓缩富集以及绿色催化剂制备等领域中的应用进展，最后指出引入新型配位基团、纤维材料重复利用性的提高和纳米纤维膜的应用是目前促进PAN纤维在产业用纺织品中发展的主要方向。

Recent progress in coordination of modified polyacrylonitrile fiber with metal ions and applications

To solve the problem of inadequate application of polyacrylonitrile (PAN) fibrous materials in the production of industrial textiles, several modification processes of the nitrile groups to coordinating groups including amidoxime, amido, carboxyl and other groups on PAN fiber were firstly introduced in this present work. The reaction models of different modified PAN fiber with transition metal ions or rare earth metal ions and properties of the resulting complexes were then compared. Moreover, the applications of modified PAN fibers in fields of heavy metal ions removal, trace metal ions detections, concentration of rare metal ions and novel metal ions, as well as green catalyst preparation were also reviewed. Finally, the introduction of new coordinating groups, recycle ability and usage of nano-fibrous membranes were regarded as the important developments for promoting the application of PAN fibrous materials in the production of industrial textiles in the future.