期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 9, 期 24, 页码 8136-8141出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.1c01303
关键词
Ce-doped carbon dots; fluorescent differentiation; aminophenol isomers
资金
- Natural Science Foundation of China [21665001, 21874030]
- BAGUI Scholar Program
By utilizing a novel fluorescent strategy based on cerium-doped carbon dots, a convenient method for distinguishing and monitoring aminophenol isomers has been successfully established, showing high selectivity and sensitivity with low detection limits, demonstrating significant potential for application in environmental assays.
Establishing a facile distinction protocol for isomers is still imminently desired. However, the use of a fluorescent probe to differentiate between aminophenol isomers is rarely reported. Herein, we propose a novel fluorescent strategy, based on cerium-doped carbon dots (Ce-CDs), for the convenient differentiation and sensitive monitoring of aminophenol isomers. The Ce-CDs were synthesized through a facile hydrothermal approach using Dendrobium officinale and Ce(NH4)(2)(NO3)(6) as raw materials; the Ce-CDs possessed sufficient stability and excellent peroxidase-like activity. The synthesized Ce-CDs can catalyze the H2O2-mediated oxidation of aminophenol isomers resulting in different fluorescence behaviors, which is convenient for distinction of the aminophenol isomers. Notably, the Ce-CD-based fluorescent sensor was highly selective and sensitive for determining o-aminophenol (OAP) and m-aminophenol (MAP) with a low detection limit of 0.033 mu M, respectively. The fluorescent method was successfully applied to monitor the presence of MAP and OAP in real water samples, which illustrated its significant potential for application in other environmental assays.
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