用于通过不同传感机制同时检测水中铅离子和铁离子的双发射碳点
Dual Emission Carbon Dots for Simultaneous Detections of Pb and Fe Ions in Water Via Distinct Sensing Mechanisms.
作者信息
Hoang Nguyen Minh, Ngoc Nguyen Thi Bich, Huong Phan Thi Lan, Huyen Phan Thi Thanh, Duy Dao Quang, Dao Van-Duong, Tu Le Tuan
机构信息
Faculty of Physics, VNU University of Science, 334 Nguyen Trai, 100000, Hanoi, Vietnam.
Department of Physics & Biophysics, Vietnam Military Medical University, 160 Phung Hung, 100000, Hanoi, Vietnam.
出版信息
J Fluoresc. 2023 Jul;33(4):1359-1366. doi: 10.1007/s10895-022-03139-2. Epub 2023 Jan 25.
Herein, dual-emission carbon dots (DE-CDs) were synthesized using a one-pot hydrothermal method. DE-CDs exhibited two well-separated peaks at 433 and 513 nm under ultraviolet excitation. The prepared DE-CDs offer selective detection of Fe ions via inner filter effect (IFE) and Pb ions via aggregation-induced enhancement (AIE). The obtained DE-CDs showed a good affinity for both Fe and Pb ions in the presence of various interfering ions. The limits of detection were 0.797 ppm and 4.739 ppm for Pb and Fe, respectively. The finding reveals the huge potential of DE-CDs for the selective detection of multiple targets in one solution.
在此，采用一锅水热法合成了双发射碳点（DE-CDs）。在紫外激发下，DE-CDs在433和513 nm处呈现出两个分离良好的峰。制备的DE-CDs通过内滤效应（IFE）对铁离子进行选择性检测，通过聚集诱导增强（AIE）对铅离子进行选择性检测。在存在各种干扰离子的情况下，所获得的DE-CDs对铁离子和铅离子均表现出良好的亲和力。铅和铁的检测限分别为0.797 ppm和4.739 ppm。这一发现揭示了DE-CDs在单一溶液中选择性检测多个目标的巨大潜力。
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