摘要
开发了一种基于壳聚糖的酰基化改性、利用含巯基碳量子点(S,N-CQDs)与点击反应制备的荧光修饰的改性壳聚糖(NMCS-SNCQDs)的简易方法,并对NMCS-SNCQDs进行了表征。结果表明:该方法具有成本低、便捷快速、可视化等特点;NMCS-SNCQDs保留了S,N-CQDs的良好荧光性能,可对Cr^(6+)有选择性地进行荧光淬灭响应,其临界响应浓度为52μmol/L;NMCS-SNCQDs具有很好的成凝胶性,可用于开发荧光试纸/凝胶,实现快速、实时检测水体中的Cr^(6+)污染。
Carbon quantum dots doped with sulfur and nitrogen(S,N-CQDs)were used via click reaction based on acylation modification of chitosan to prepare fluorescent modified chitosan(NMCS-SNCQDs),which were characterized.The results show that the method is affordable,convenient and visualizatized.NMCS-SNCQDs not only retains the good fluorescence performance of S,N-CQDs,but also can selectively quench response to chromium ions.Its critical response concentration is 52μmol/L.It has good gel formation,which can be used to develop fluorescent test paper/gel to achieve rapid and real-time detection of chromium ion pollution in water.
作者
李丹
黄金怡
严志红
肖湛
刘龙元
刘意
Li Dan;Huang Jinyi;Yan Zhihong;Xiao Zhan;Liu Longyuan;Liu Yi(School of Pharmaceutical and Chemical Engineering,Guangdong Pharmaceutical University,Zhongshan 528400,China;College of Pharmacy,Guangdong Pharmaceutical University,Guangzhou 510000,China)
出处
《合成树脂及塑料》
CAS
北大核心
2024年第1期24-28,共5页
China Synthetic Resin and Plastics
基金
2023年广东省大学生创新创业实践计划项目(202310573011)。
关键词
改性壳聚糖
碳量子点
铬离子
污染
可视化检测
modified chitosan
carbon quantum dot
chromium ion
pollution
visual detection
