Carbon quantum dots (CQDs) have attracted much attention since their discovery in 2004. Compared with conventional organic dyes, CQDs have good biocompatibility, good water solubility, fluorescent signal stability, the light can be coordinated, etc. And have been widely researched and applied in biological imaging, biological sensing, optical diagnosis and treatment, photocatalysis, solar cells, light emitting components areas. CQDs is a kind of extremely potential carbon matrix material.
At present, the synthesis methods are mainly divided into "top-down" and "bottom-up". The "top-down" synthesis strategy is conducive to the synthesis of carbon quantum dots with high crystalline and complete structure, while the "bottom-up" synthesis strategy usually produces carbon quantum dots with amorphous carbon nuclei, rich doping sites and many surface functional groups.
|Arc discharge method|
|Microwave digestion synthesis method|
|Solvent hot method|
|Strong acid oxidation|
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