导电高分子基新材料的研制及其水溶液中重金属吸脱附效率比较研究  

Performance Evaluation of Several Nanomaterials for Their Removal and Enrichment of Metal Ions from Aqueous Solution

作　　者：邓晓燕 张培新[1] 江冶[1] 郁飞 王青 康学军[2] Deng Xiaoyan;Zhang Peixin;Jing Ye;Yu Fei;Wang Qing;Kang Xuejun(Technology Innovation Center for Ecological Monitoring&Restoration Project on Land(Arable),Ministry of Natural Resources,Geological Survey of Jiangsu Province,Nanjing 210018,China;Southeast University,Nanjing 210096,China)

机构地区：[1]自然资源部国土(耕地)生态监测与修复工程技术创新中心,江苏省地质调查研究院,江苏南京210018 [2]东南大学,江苏南京210096

出　　处：《广东化工》2025年第5期33-36,共4页Guangdong Chemical Industry

基　　金：自然资源部国土(耕地)生态监测与修复工程技术创新中心开放课题:土壤—水体系中典型重金属元素原位监测技术研究(GTST2021-0105)。

摘　　要：本文研制了聚噻吩(PEDOT)、聚苯胺(PANI)、聚吡咯(PPY)导电高分子颗粒和聚吡咯纳米纤维(PPy),并且将聚苯硫醚(PPS)树脂纺制成纳米纤维,制成了掺杂双硫腙的功能化纳米纤维(PPS-DZ)。PEDOT颗粒对Cr(Ⅱ)、Fe(Ⅲ)、Cu(Ⅱ)、Zn(Ⅱ)、Cd(Ⅱ)、Sn(Ⅱ)、Hg(Ⅱ)和Pb(Ⅱ)表现出较高吸附效率,PANI颗粒对Cd(Ⅱ)吸附效率较好,PPY颗粒对Mn(Ⅱ)吸附效率较好,PPS-DZ纤维对Fe(Ⅲ)、Hg(Ⅱ)、Pb(Ⅱ)的吸附效率比PPS纤维显著提高。用0.1 mol/L的硝酸洗脱,Pb(Ⅱ)和Zn(Ⅱ)的洗脱率大约在88.0%~100.0%和100.0%~114.8%,可见Pb(Ⅱ)和Zn(Ⅱ)最容易洗脱。实验结果表明利用导电高分子基新材料吸附无机金属离子对其进行富集分离是可行的。Micro/nanostructured conducting polymer particles,polythiophen(PEDOT),polyaniline(PANI)and polypyrrol(PPY),were successfully synthesized by using different polymerization methods.Fibrous materials,polypyrrol(PPy),polyphenylene sulfide(PPS)and its composite functionalized with dithizone(DZ),were fabricated by electrospinning.Among six sorbents,PEDOT performs better for Cr(Ⅱ),Fe(Ⅲ),Cu(Ⅱ),Zn(Ⅱ),Cd(Ⅱ),Sn(Ⅱ),Hg(Ⅱ)and Pb(Ⅱ);PANI performs better for Cd(Ⅱ),and PPY performs better for Mn(Ⅱ).The metal ions could be desorbed from the sorbent by a small volume of 0.1 mol·L^(-1) HNO_(3) aqueous solution.The nonmaterial could be used for removal and enrichment of metal ions from aqueous solution.

关 键 词：纳米材料 重金属 ICP-MS 水溶液 

分 类 号：TQ[化学工程]