期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 253, 期 -, 页码 928-933出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2017.07.031
关键词
Carbon dots; Multimodal sensing; Tunable photoluminescence; Chemical sensor
资金
- National Natural Science Foundation of China [U1510125, 51272301, 51502270]
- Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
- Specialized Research Fund for Sanjin Scholars Program of Shanxi Province
- North University of China Fund for Distinguished Young Scholars
We presented multicolored emission carbon dots using for simultaneous detection of Fe3+ and Cu2+ ions through assigning a different colored emission carbon dot to a different metal ion. Carbon dots were prepared by a facile hydrothermal treatment of the mixed solution of m-phenylenediamine, ethanol and ammonia. Their photoluminescence (PL) gradually evolved three strongest peaks with concentration reduction, and these strongest PL peaks exhibited different response patterns for Fe3+ and Cu2+ with high selectivity and sensitivity. Accordingly, the concentration-modulated multicolor carbon dots could be used to multimodal sensing. (C) 2017 Elsevier B.V. All rights reserved.
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