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Hoang, Nguyen Minh; Ngoc, Nguyen Thi Bich; Huong, Phan Thi Lan; Huyen, Phan Thi Thanh; Duy, Dao Quang; Dao, Van-Duong; Tu, Le Tuan
Journal of fluorescence, 07/2023, Letnik: 33, Številka: 4Journal Article
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 3+ ions via inner filter effect (IFE) and Pb 2+ ions via aggregation-induced enhancement (AIE). The obtained DE-CDs showed a good affinity for both Fe 3+ and Pb 2+ ions in the presence of various interfering ions. The limits of detection were 0.797 ppm and 4.739 ppm for Pb 2+ and Fe 3+ , respectively. The finding reveals the huge potential of DE-CDs for the selective detection of multiple targets in one solution. Graphical Abstract
