一种席夫碱基水溶性聚合物荧光化学传感器对Al^(3+)的检测研究  

A Fluorescent Chemosensor for Selective Detection of Al^(3+) Based on Schiff Base Functionalized Water-Soluble Polymer

作　　者：孔刘奇 许宇航 朱燕 陈阿敏 李娜[1] 李光[1] KONG Liuqi;XU Yuhang;ZHU Yan;CHEN Amin;LI Na;LI Guang(School of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China)

机构地区：[1]聊城大学材料科学与工程学院,山东聊城252059

出　　处：《聊城大学学报（自然科学版）》2022年第3期42-48,共7页Journal of Liaocheng University:Natural Science Edition

基　　金：国家自然科学基金项目(51503094);山东省自然科学基金项目(ZR2015BQ002);山东省大学生创新创业训练计划项目(S202010447021);聊城大学科研基金项目(318011905)资助。

摘　　要：通过2,4-二羟基苯基席夫碱衍生物与端羧基聚乙二醇的室温酯化反应合成一种可完全溶于水的席夫碱基聚合物PEGBB。以PEGBB作为化学传感器,采用紫外-可见吸收光谱、荧光光谱等研究了其在纯水溶液中对金属离子的检测能力。结果表明PEGBB可以作为荧光化学传感器实现对Al^(3+)的选择性识别,表现出优异的选择性和抗干扰性。在pH值5~9的范围内,PEGBB均能对Al^(3+)有效检出。同时,PEGBB对Al^(3+)的检测表现出良好的可逆性。此外,利用PEGBB制成的试纸可实现对水溶液中Al^(3+)的便捷性检出。A novel Schiff based water-soluble polymer PEGBB was synthesized by room temperature esterification of 2,4-dihydroxyphenyl-based Schiff base derivative with carboxylated polyethylene glycol.PEGBB was used as chemosensor to detect metal ions in pure aqueous solution by UV-Vis absorption spectroscopy and fluorescence spectroscopy.Interestingly,PEGBB could be applied as an efficient fluorescent chemosensor for the selective detection of Al^(3+) with excellent selectivity and anti-interference ability.PEGBB could efficiently detect Al^(3+) in the wide pH range of 5~9.Furthermore,PEGBB exhibited better reversibility for the detection of Al^(3+) in aqueous solution.In addition,test papers coated with PEGBB were prepared for convenient detection of Al^(3+).

关 键 词：Al^(3+) 水溶性聚合物 荧光化学传感器 试纸 

分 类 号：O644.14[理学—物理化学]