A red fluorescent carbon dots with good water solubility for rapid detection of Al3+ in actual samples |
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Authors: | Jingyuan Zhao Jie Yao Yingqi Wang Ning Wang Jianhua Wang |
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Affiliation: | 1. The First Clinical Medical School, Shanxi Medical University, Taiyuan, China;2. Department of Basic Medicine, Shanxi Medical University, Jinzhong, China |
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Abstract: | We developed a facile strategy for the fabrication of red fluorescent carbon nanodots (R-CDs) and demonstrated their applications for Al3+ sensing. Red-emission carbon dots (CDs) were synthesized using a simple hydrothermal treatment with citric acid and urea as precursors, manifesting intriguing red-emission behaviour at 610 nm. With increasing Al3+ concentration, the fluorescence band at 610 nm decreased gradually. Monitoring the intrinsic fluorescence variation (I610nm), as-prepared CDs were developed as an effective platform for fluorescent Al3+ sensing, with a linear range of 0.5–60.0 μM and a detection limit of 3.0 nM. More importantly, R-CDs have been applied successfully to the analysis of Al3+ in actual samples with satisfactory recoveries in the range 97.12–102.05%, which indicated that obtained CDs could be implemented as an effective tool for the identification and detection of Al3+ in actual samples. |
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Keywords: | actual sample Al3  + carbon dots rapid detection |
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