Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 4, Issue 29, Pages 6927-6945Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6tc02055k
Keywords
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Funding
- National Natural Science Foundation of China [21575134, 21275136]
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Small carbon nanoparticles are an emerging member of the carbonaceous nanomaterial family and have been subsequently named as carbon quantum dots or carbon nanodots. Generally, carbon quantum dots are a type of spherical or sphere-like nanoparticles of less than 10 nm in size. Due to their unique properties, for example, size-dependent fluorescence, non-toxicity, biocompatibility, and easy accessibility, carbon quantum dots possess a great many potential applications in a range of fields from chemical sensing and imaging to catalysis and drug delivery, and thus are appealing to a number of researchers in nanoscience and nanotechnology. In this review, we give a brief introduction of the synthesis and fundamental properties of carbon quantum dots, then present their applications in metal ion sensing in detail along with illustrating the related mechanisms, and finally come up with some challenges currently faced and future outlooks for this fascinating carbon material. We hope this review could be helpful for readers who are preparing to join and/or have joined the research field of carbon quantum dots.
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