聚苯乙烯为基质的功能化纳米纤维对水溶液中重金属吸附效率比较研究  

Comparative Study on the Enrichment of Metal Ions from Aqueous Media using Nanofibers Functionalized by Co-electrospinning of Complex Reagents with Polystyrene

作　　者：邓晓燕 王青 胡萍 赵越 Deng Xiaoyan;Wang Qing;Hu Ping;Zhao Yue(Geological Survey of Jiangsu Province,Nanjing 210018,China)

机构地区：[1]江苏省地质调查研究院,江苏南京210018

出　　处：《广东化工》2025年第6期19-21,共3页Guangdong Chemical Industry

摘　　要：选取双硫腙(DZ)、1-(2-吡啶偶氮)-2-萘酚(Pan)、8-羟基喹啉(8-OH)和1,10-菲啰啉(Phe)这些常用的金属螯合试剂为修试剂,将其加入聚苯乙烯(PS)静电纺丝溶液中通过静电纺丝技术共纺成不同的功能纳米纤维,制作成固相萃取柱用于吸附水溶液中重金属离子。对比分析了这些功能化的纳米纤维对水溶液中Mn^(2+)、Ni^(2+)、Cr^(2+)、Cu^(2+)、Cd^(2+)、As^(3+)、Pb^(2+)、Se^(4+)和Sn^(2+)的吸附和脱附行为。实验结果显示,PS-DZ材料对Cr^(2+)、Cu^(2+)、Sn^(2+)、Pb^(2+)和As^(3+)表现出较高的吸附能力,而PS-Pan材料则对Mn^(2+)、Ni^(2+)和Cd^(2+)有较好的吸附效果,PS-Phe材料对Se^(4+)的吸附率尤为突出。这些发现表明,通过混合静电纺丝技术制备的功能性纳米纤维材料,能够有效选择性地吸附水溶液中的重金属离子。此外,功能化修饰后的纳米纤维在金属离子富集效率上显著优于未修饰的纳米纤维,这一技术已成功应用于实际样品的检测。Electrospun nanofibers were utilized as a sorbent in packed fiber solid phase extraction(PFSPE)for selective separation and concentration of Mn^(2+),Ni^(2+),Cr^(2+),Cu^(2+),Cd^(2+),As^(3+),Pb^(2+),Se^(4+)and Sn^(2+).The nanofiber has a polystyrene(PS)backbone,which were functionalized with dithizone(DZ),1-(2-Pyridylazo)-2-naphthol(Pan),8-hydroxyquinoline(8-OH)and 1,10-phenanthrolineas(Phe)by co-electrospinning of them in PS solution.The nanofibers exhibited its performance in a cartridge prepared.After modified with complex reagents,the adsorption amount for the target ions was increased significantly.Among them,PS-DZ performs better with the highest adsorption amount for Cr^(2+),Cu^(2+),As^(3+),Sn^(2+),Pb^(2+),PS-Pan performs better for Mn^(2+),Ni^(2+)and Cd^(2+),and PS-Phe performs better for Se^(4+).The nanofiber could be used for concentration of metals ion from water before analysis of them.

关 键 词：纳米纤维 重金属 ICP-MS 水溶液 

分 类 号：TQ[化学工程]