Chinese Journal of Applied Chemistry ›› 2021, Vol. 38 ›› Issue (7): 767-788.DOI: 10.19894/j.issn.1000-0518.200343

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Research Progress on Synthesis of Coal-based Carbon Quantum Dots

BO Chun-Hui1, JIANG Wei-Jia2, WANG Yu-Gao1*, SHI Li-Hong2, DONG Chuan2*   

  1. 1College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030000,China
    2Institute of Environmental Science, Shanxi University, Taiyuan 030000, China
  • Received:2020-11-17 Accepted:2021-01-20 Published:2021-07-01 Online:2021-09-01
  • About author:National Natural Science Foundation of China (Nos.21706172,21874087,U1610223) and the Key R&D Project of Shanxi Province (No.201903D321061)

Abstract: A variety of nanomaterials have been discovered with the emergence and development of nanoscience and nanotechnology. Carbon quantum dots (CQDS) attract the attention of many researchers because of their unique and excellent properties. Carbon sources have an important impact on the synthesis and properties of carbon quantum dots. Coal and coal derivatives are rich in aromatic ring structures and suitable for the preparation of carbon quantum dots in the view of microstructures. In this paper, the research progress of the synthesis of carbon quantum dots from coal (called coal based carbon quantum dots) and its derivatives by chemical oxidation, ultrasonic and electrochemical oxidation is reviewed. The advantages of coal and its derivatives as raw materials are described, the characteristics of different preparation methods are compared and analyzed, and the properties of coal based carbon quantum dots are briefly introduced. Finally, the prospects of controllable preparation of coal based carbon quantum dots are proposed.

Key words: Carbon quantum dots, Coal, Coal derivatives, Synthesis progress

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