Synthesis of carbon dots with a tunable photoluminescence and their applications for the detection of acetone and hydrogen peroxide

Carbon dots with multi-color emissive properties and a high photoluminescent quantum yield have attracted great attention recently due to their potential applications in chemical, environmental, biological and photo-electronic fields

Shitong Cui; Yanfen Wu; Yao Liu; Qingwen Guan; Yida Zhang; Yilin Zhang; Song Luo; Meng Xu; Juncheng Wang

2019

Scholarcy highlights

  • Carbon dots with multi-color emissive properties and a high photoluminescent quantum yield have attracted great attention recently due to their potential applications in chemical, environmental, biological and photo-electronic fields
  • Solvent-dependent effect in photoluminescence provides a facial and effective approach to tune the emission of CDs
  • The as-prepared nitrogen-doped carbon dots possess a robust excitation-independent green luminescence and a high PLQY of up to 15.9%
  • Further spectroscopic characterization indicates that the high PLQY is achieved by the balance of nitrogen doping states and the surface passivation extent in CDs
  • This work broadens the knowledge of applying CDs as probes in the bio and chemical sensing fields
  • A green and facial hydrothermal strategy is developed to synthesis N-doped carbon dots with a high green fluorescence and a promising fluorescent probe for the detection of acetone and hydrogen peroxide

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