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Uniform blue emitting carbon nanodots synthesized from fig fruit using reverse diffusion purification.

Jamaan E Alassafi1, Yas Al-Hadeethi2, Mohammed S Aida2

  • 1Asser, Health Cluster, Ministry of Health, Abha, Saudi Arabia. jamaan.alassafi@gmail.com.

Scientific Reports
|November 25, 2024
PubMed
Summary

Researchers synthesized highly pure blue-emitting carbon nanodots (B.CNDs) from fig fruit. These sustainable nanomaterials exhibit excellent optical properties, paving the way for advanced applications.

Keywords:
Blue emissionGreen carbon sourcesNarrow bandwidthPyrolysis synthesisReverse diffusion technique

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Biomaterials

Background:

  • Carbon nanodots (CNDs) are versatile nanomaterials with diverse applications.
  • Developing sustainable and efficient synthesis methods for CNDs with specific optical properties remains a challenge.

Purpose of the Study:

  • To synthesize blue-emitting carbon nanodots (B.CNDs) with exceptional color purity from a sustainable source.
  • To characterize the optical and morphological properties of the synthesized B.CNDs.

Main Methods:

  • One-step pyrolysis of fresh fig fruit to synthesize B.CNDs.
  • Reverse diffusion and dialysis techniques for purification and separation.

Main Results:

  • Synthesized spherical B.CNDs (3.7 nm) with an amorphous carbon core and oxygen-rich passivation layer.
  • Achieved excitation-independent emission at 450 nm with narrow FWHM (44 nm) and 15.5% quantum yield.
  • Demonstrated remarkable morphological and chemical uniformity.

Conclusions:

  • Successfully fabricated high-purity B.CNDs using a sustainable, one-step method.
  • The synthesis approach yields B.CNDs with superior optical performance and uniformity.
  • This work offers a novel, eco-friendly route for producing advanced carbon nanomaterials.