Electrochemiluminescence of Carbon‐based Quantum Dots: Synthesis, Mechanism and Application in Heavy Metal Ions Detection

Abstract In recent years, carbon‐based quantum dots as luminophores and co‐reactants have aroused broad interest for their ability to function in electrochemiluminescence (ECL) sensors due to their unique features, including excellent biocompatibility, low toxicity, and water solubility. In this mini review, the synthesis methods of carbon‐based quantum dots are firstly introduced. Then, the mechanism of carbon‐based quantum dots as luminophores and co‐reactants and their latest progress application in the detection of heavy metal ions are explored. Finally, the current challenges and potential future development directions of carbon‐based quantum dots in ECL sensing filed for heavy metal ions analysis are summarized.