Abstract
This review focuses on the recent development of graphene quantum dots (GQDs) as fluorescence probes, including their synthesis and application in metal ions detection. Because of the quantum confinement and edge effects, GQDs have exhibited unusual optical and chemical properties. Recently, various studies have been performed to tune the fluorescent properties of graphene quantum dots through doping heteroatom to the - conjugated system or surface-functionalization. Herein, we summarize the fundamental optical properties of GQDs influenced by size/shape, zigzag site and defect density, which is of very importance for the development of novel nanodevices with novel properties. We then highlight the application of graphene quantum dot probes in fluorescent sensing of metal irons. We also discuss the current challenges and application prospects of fluorescent GQDs in metal ions sensor field.
Keywords: Carbon, chemical sensor, fluorescence, graphene, metal ions, quantum dots.
Graphical Abstract
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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