Synthesis of Organic Material-Derived Carbon Quantum Dots: Nitrogen Doping and Fluorescence Modulation for Metal Ion Sensing

Authors

  • Mokhamat Ariefin Universitas Palangka Raya
  • Muh. Supwatul Hakim Universitas Palangka Raya
  • Tety Wahyuningsih Manurung Universitas Palangka Raya
  • Marvin Horale Pasaribu Universitas Palangka Raya
  • Rokiy Alfanaar University of Palangka Raya
  • Joy Angel Aria Suma University of Palangka Raya
  • Risfiah Ruli Cahyani University of Palangka Raya

DOI:

https://doi.org/10.19109/dtkfrz78

Keywords:

carbon quantum dots, nitrogen doping, fluoroscence, microwave-assisted

Abstract

Nitrogen-doped carbon quantum dots (N-CDs) were synthesized from Terung Dayak (Solanum ferox) using a microwave-assisted method. This study investigated their optical properties and fluorescence modulation in the presence of metal ions. The synthesis involved citric acid as the carbon precursor and urea as the nitrogen dopant, leading to well-dispersed N-CDs with enhanced fluorescence characteristics. UV-Vis and fluorescence spectroscopy confirmed the successful incorporation of nitrogen, which resulted in a redshifted emission peak and improved fluorescence intensity compared to undoped CDs. The band gap analysis using Tauc plots indicated an increase in energy gap upon nitrogen doping, suggesting modifications in the electronic structure. Furthermore, fluorescence response experiments demonstrated that the presence of Pb²⁺ ions significantly enhanced the emission intensity, indicating potential applications in metal ion sensing. The results highlight the influence of nitrogen doping on the optical properties of carbon quantum dots and their promising use in fluorescence-based sensing applications.

References

H. F. Etefa, A. A. Tessema, and F. B. Dejene, “Carbon Dots for Future Prospects: Synthesis, Characterizations and Recent Applications: A Review (2019–2023),” C (Basel), vol. 10, no. 3, p. 60, Jul. 2024, doi: 10.3390/c10030060.

J. Liu, R. Li, and B. Yang, “Carbon Dots: A New Type of Carbon-Based Nanomaterial with Wide Applications,” ACS Cent Sci, vol. 6, no. 12, pp. 2179–2195, Dec. 2020, doi: 10.1021/acscentsci.0c01306.

B. D. Mansuriya and Z. Altintas, “Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care—An Updated Review (2018–2021),” Nanomaterials, vol. 11, no. 10, p. 2525, Sep. 2021, doi: 10.3390/nano11102525.

Z. A. Qureshi, H. Dabash, D. Ponnamma, and M. K. G. Abbas, “Carbon dots as versatile nanomaterials in sensing and imaging: Efficiency and beyond,” Heliyon, vol. 10, no. 11, p. e31634, Jun. 2024, doi: 10.1016/j.heliyon.2024.e31634.

Y. Wang, Y. Zhu, S. Yu, and C. Jiang, “Fluorescent carbon dots: rational synthesis, tunable optical properties and analytical applications,” RSC Adv, vol. 7, no. 65, pp. 40973–40989, 2017, doi: 10.1039/C7RA07573A.

B. D. Mansuriya and Z. Altintas, “Carbon Dots: Classification, Properties, Synthesis, Characterization, and Applications in Health Care—An Updated Review (2018–2021),” Nanomaterials, vol. 11, no. 10, p. 2525, Sep. 2021, doi: 10.3390/nano11102525.

J. Liu, R. Li, and B. Yang, “Carbon Dots: A New Type of Carbon-Based Nanomaterial with Wide Applications,” ACS Cent Sci, vol. 6, no. 12, pp. 2179–2195, Dec. 2020, doi: 10.1021/acscentsci.0c01306.

H. F. Etefa, A. A. Tessema, and F. B. Dejene, “Carbon Dots for Future Prospects: Synthesis, Characterizations and Recent Applications: A Review (2019–2023),” C (Basel), vol. 10, no. 3, p. 60, Jul. 2024, doi: 10.3390/c10030060.

T. J. Pillar-Little, N. Wanninayake, L. Nease, D. K. Heidary, E. C. Glazer, and D. Y. Kim, “Superior photodynamic effect of carbon quantum dots through both type I and type II pathways: Detailed comparison study of top-down-synthesized and bottom-up-synthesized carbon quantum dots,” Carbon N Y, vol. 140, pp. 616–623, Dec. 2018, doi: 10.1016/j.carbon.2018.09.004.

H. H. Kim et al., “Bottom‐Up Synthesis of Carbon Quantum Dots With High Performance Photo‐ and Electroluminescence,” Particle & Particle Systems Characterization, vol. 35, no. 7, Jul. 2018, doi: 10.1002/ppsc.201800080.

J. Kong et al., “Carbon Quantum Dots: Properties, Preparation, and Applications,” Molecules, vol. 29, no. 9, p. 2002, Apr. 2024, doi: 10.3390/molecules29092002.

I. SINGH, R. ARORA, H. DHIMAN, and R. PAHWA, “Carbon Quantum Dots: Synthesis, Characterization and Biomedical Applications,” The Turkish Journal of Pharmaceutical Sciences, vol. 15, no. 2, pp. 219–230, Jul. 2018, doi: 10.4274/tjps.63497.

G. Ge et al., “Carbon dots: synthesis, properties and biomedical applications,” J Mater Chem B, vol. 9, no. 33, pp. 6553–6575, 2021, doi: 10.1039/D1TB01077H.

N. A. Fauziyah, “A brief review of C-Dots preparation using top-down and bottom-up approaches.,” International Journal of Eco-Innovation in Science and Engineering, vol. 3, no. 01, pp. 25–29, May 2022, doi: 10.33005/ijeise.v3i01.54.

M. E. Lombardo, D. Benetti, V. La Carrubba, and F. Rosei, “Heteroatom-Doping for Carbon Dots: An Efficient Strategy to Improve Their Optoelectronic Properties,” ECS Meeting Abstracts, vol. MA2020-01, no. 16, pp. 1087–1087, May 2020, doi: 10.1149/MA2020-01161087mtgabs.

Y. Liu et al., “Fast and efficient ‘on-off-on’ fluorescent sensor from N-doped carbon dots for detection of mercury and iodine ions in environmental water,” Science of The Total Environment, vol. 827, p. 154357, Jun. 2022, doi: 10.1016/j.scitotenv.2022.154357.

V. D. Pham et al., “Surface modification of nitrogen-doped carbon quantum dots for enhanced functionalities,” Communications in Physics, vol. 34, no. 4, p. 413, Dec. 2024, doi: 10.15625/0868-3166/21469.

K. G. Nguyen et al., “Investigating the effect of N-doping on carbon quantum dots structure, optical properties and metal ion screening,” Sci Rep, vol. 12, no. 1, p. 13806, Aug. 2022, doi: 10.1038/s41598-022-16893-x.

S. Lai, Y. Jin, L. Shi, R. Zhou, and Y. Li, “Fluorescence Sensing Mechanisms of Versatile Graphene Quantum Dots toward Commonly Encountered Heavy Metal Ions,” ACS Sens, vol. 8, no. 10, pp. 3812–3823, Oct. 2023, doi: 10.1021/acssensors.3c01295.

V. Vinod Kumar, T. Raman, and S. P. Anthony, “Fluorescent carbon quantum dots chemosensor for selective turn-on sensing of Zn 2+ and turn-off sensing of Pb 2+ in aqueous medium and zebrafish eggs,” New Journal of Chemistry, vol. 41, no. 24, pp. 15157–15164, 2017, doi: 10.1039/C7NJ02831H.

S. Lai, Y. Jin, L. Shi, R. Zhou, and Y. Li, “Fluorescence Sensing Mechanisms of Versatile Graphene Quantum Dots toward Commonly Encountered Heavy Metal Ions,” ACS Sens, vol. 8, no. 10, pp. 3812–3823, Oct. 2023, doi: 10.1021/acssensors.3c01295.

N. Preeyanka and M. Sarkar, “Probing How Various Metal Ions Interact with the Surface of QDs: Implication of the Interaction Event on the Photophysics of QDs,” Langmuir, vol. 37, no. 23, pp. 6995–7007, Jun. 2021, doi: 10.1021/acs.langmuir.1c00548.

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Published

2024-08-31

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Vol. 8 No. 2 (2024): ALKIMIA

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Copyright (c) 2025 Mokhamat Ariefin, Muh. Supwatul Hakim, Tety Wahyuningsih Manurung, Marvin Horale Pasaribu, Rokiy Alfanaar, Joy Angel Aria Suma, Risfiah Ruli Cahyani

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How to Cite

Synthesis of Organic Material-Derived Carbon Quantum Dots: Nitrogen Doping and Fluorescence Modulation for Metal Ion Sensing. (2024). ALKIMIA : Jurnal Ilmu Kimia Dan Terapan, 8(2), 9-15. https://doi.org/10.19109/dtkfrz78