
Preparation and Applications of Chiral Carbon Dots Prepared via Hydrothermal Carbonization Method
Jinyue Fan, Xiangxin Kong, Wei Li, Shouxin Liu
Prog Chem ›› 2023, Vol. 35 ›› Issue (12) : 1764-1782.
Preparation and Applications of Chiral Carbon Dots Prepared via Hydrothermal Carbonization Method
As an emerging carbon nanomaterial, chiral carbon dots (CCDs) have the unique photoelectric properties of carbon dots and chiral characteristics, which have good development prospects. The preparation of CCDs by hydrothermal carbonization includes a one-step method based on the chiral transfer strategy and a two-step method based on the chiral inheritance strategy, which exhibited the advantages of easy control of chiral structure, adjustable optical properties, environmental friendliness and excellent water solubility. It has good application effects in the fields of biomedicine, sensing, asymmetric catalysis, optoelectronic materials and composites, and is the most widely used preparation method at present. In this paper, the effects of experimental conditions (source types, hydrothermal conditions) on the chiral characteristics, physical chemical structure, optical properties and electrical properties of CCDs prepared by hydrothermal carbonization are reviewed. The applications of chiral carbon dots are summarized and their future developments are prospected.
1 Introduction
2 Preparation of chiral carbon dots by hydrothermal carbonization
2.1 One-step method based on chiral transfer strategy
2.2 Two-step method based on chiral inheritance strategy
3 Effect of preparation factors on the properties of chiral carbon dots
3.1 Effect of carbon source
3.2 Effect of chiral ligands
3.3 Effect of other source
3.4 Effect of hydrothermal carbonization temperature
3.5 Effect of hydrothermal carbonization time
4 Structural characteristics of chiral carbon dots prepared by hydrothermal carbonization
4.1 Chiral characteristics
4.2 Physical structure
4.3 Chemical structure
4.4 Optical property
4.5 Electrical property
5 Applications of chiral carbon dots prepared by hydrothermal carbonization
5.1 Biomedical
5.2 Sensing
5.3 Asymmetric catalysis
5.4 Photoelectric material
5.5 Composites
6 Conclusion and outlook
chirality / carbon dots / hydrothermal carbonization / optical characteristics / biomedical / sensing / composites
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