井冈山大学学报（自然科学版）2026，Vol.47Issue(5)：29-39,11.DOI:10.3969/j.issn.1674-8085.2026.05.004
基于聚酰亚胺的新型离子多孔有机聚合物设计制备及其对废水中Cr(Ⅵ)和Re(Ⅵ)的选择性吸附研究
Design and preparation of novel polyimide-based ionic porous organic polymers and their removal performance for Cr(Ⅵ)and Re(Ⅵ)in wastewater
摘要
Abstract
Developing adsorbent materials with excellent thermal and chemical stability for the treatment of high-temperature wastewater containing heavy metals is of great significance for sustainable industrial development.In this study,two novel polyimide-based ionic porous organic polymers(designated as PIBr and FPIBr,respectively)were synthesized.The structures of PIBr and FPIBr before and after adsorption were characterized by thermogravimetric analysis(TGA),Fourier transform infrared spectroscopy(FTIR),Brunauer-Emmett-Teller(BET)surface area analysis,scanning electron microscopy(SEM),and transmission electron microscopy(TEM).The results show that the structures of both PIBr and FPIBr remain unchanged before and after adsorption,indicating their exceptional stability.Adsorption experiments reveal that both ionic polyimide polymers exhibit high selectivity and adsorption capacity for Cr2O7²-and ReO4-(a surrogate anion for TcO4-).PIBr achieves removal efficiencies of 97%and 98%for Cr2O7²-and ReO4-within one hour,respectively,while FPIBr achieves 96%and 100%,respectively.Moreover,they also present outstanding reusability,with the removal efficiencies of target contaminant ions remaining above 94%after five consecutive adsorption cycles.Therefore,PIBr and FPIBr can be considered as promising candidates for the treatment of high-temperature wastewater containing heavy metals.关键词
阳离子聚酰亚胺/离子型多孔有机框架/氧阴离子污染物/选择性/热稳定性Key words
cationic polyimide/ionic porous organic framework/oxoanion contaminants/selectivity/thermal stability分类
化学化工引用本文复制引用
陈舜,钟鸿,李晓丹,邱小莹,孙溢浛,邓克文,李云同,王冠辉,徐霞红,肖琳,黄伟..基于聚酰亚胺的新型离子多孔有机聚合物设计制备及其对废水中Cr(Ⅵ)和Re(Ⅵ)的选择性吸附研究[J].井冈山大学学报（自然科学版）,2026,47(5):29-39,11.基金项目
国家自然科学基金项目(22361024) （22361024）
