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Green synthesis of fluorescent carbon quantum dots and carbon spheres from pericarp

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Abstract

An economical idea was developed to synthesize fluorescent carbon quantum dots (CQDs) directly from the refluxing extraction of orange pericarp via a hydrothermal technique. Hydrothermal temperatures and times were adjusted to control the particle sizes and the quantum yields of the obtained CQDs. The as-prepared carbon quantum dots showed narrow particle size distribution, good water solubility, and acceptable fluorescence lifetimes. Due to their high stability, these obtained carbon quantum dots have great application potential in nano-biotechnology. Furthermore, carbon spheres with uniform morphology and size can be easily obtained as the reaction byproducts of this green synthesis process.

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Authors and Affiliations

  1. State Key Laboratory of Coordination Chemistry; Nanjing National Laboratory of Microstructures, Coordination Chemistry Institute, Nanjing University, Nanjing, 210093, China

    Wei Du, Xiaoqian Xu, Han Hao, Di Zhang & Qingyi Lu

  2. Department of Materials Science and Engineering, Nanjing University, Nanjing, 210093, China

    Wei Du, Rongmei Liu & Feng Gao

  3. College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, 241000, China

    Rongmei Liu

Authors
  1. Wei Du
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  2. Xiaoqian Xu
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  3. Han Hao
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  4. Rongmei Liu
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  5. Di Zhang
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  6. Feng Gao
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  7. Qingyi Lu
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Correspondence to Feng Gao or Qingyi Lu.

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Du, W., Xu, X., Hao, H. et al. Green synthesis of fluorescent carbon quantum dots and carbon spheres from pericarp. Sci. China Chem. 58, 863–870 (2015). https://doi.org/10.1007/s11426-014-5256-y

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  • DOI: https://doi.org/10.1007/s11426-014-5256-y

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