应用化学2026，Vol.43Issue(9)：1420-1428,9.DOI:10.19894/j.issn.1000-0518.260007
环境友好型十六烷基三甲基溴化铵基碳量子点荧光探针的制备及用于汞离子高灵敏检测
Preparation of Environment-Friendly Hexadecyltrimethylammonium Bromide-Based Carbon Quantum Dots Fluorescent Probe for Highly Sensitive Detection of Mercury Ions
摘要
Abstract
Efficient,environmentally friendly and low-cost detection methods and materials for Hg2+in environmental water bodies were studied.A scheme was proposed to prepare nitrogen-doped carbon dots(CDs)using low-cost cetyltrimethylammonium bromide(CTAB)as the carbon and nitrogen source.In the study,CDs were prepared in one step by hydrothermal synthesis,and only deionized water was used as the solvent without organic solvents.The synthesized CDs were comprehensively characterized,and the results showed that they had good stability,optical properties and surface characteristics.Through performance tests,it was found that the CDs had high selectivity and sensitivity for Hg2+,and their fluorescence was significantly quenched by Hg2+,while other common ions had minimal interference on the detection.The linear response range of the detection was between 0 and 23 μmol/L,and the detection limit could reach 72 nmol/L.In the study,the CDs were used for the quantitative analysis of Hg2+in actual environmental water samples,and the recovery rates of the spiked samples were between 98.80%and 100.20%,with relative standard deviations ranging from 1.28%to 3.19%.关键词
碳量子点/汞离子/荧光探针/环境检测Key words
Carbon quantum dots/Mercury ions/Fluorescent probe/Environmental detection分类
化学化工引用本文复制引用
赵婧媛,尚楠,葛辉辉,董川,张俐..环境友好型十六烷基三甲基溴化铵基碳量子点荧光探针的制备及用于汞离子高灵敏检测[J].应用化学,2026,43(9):1420-1428,9.基金项目
国家自然科学基金(No.22274090)、山西省回国留学人员科研资助项目(No.2024-146)、山西省科技战略研究专项(No.202404030401175)、山西省高等学校科技创新项目(No.2025L028)、山西医科大学省级博士基金项目(No.SD2434)和山西医科大学校级博士启动基金项目(No.XD2415)资助 Supported by the National Natural Science Foundation of China(No.22274090),the Scientific Research Fund for Returned Overseas Chinese Scholars of Shanxi Province(No.2024-146),the Special Project for Science and Technology Strategic Research of Shanxi Province(No.202404030401175),the Scientific and Technological Innovation Project of Higher Education Institutions in Shanxi Province(No.2025L028),the Provincial Doctoral Fund Project of Shanxi Medical University(No.SD2434)and the University-Level Doctoral Startup Fund Project of Shanxi Medical University(No.XD2415) （No.22274090）
