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Electrochemical Preparation of Luminescent Graphene Quantum Dots from Multiwalled Carbon Nanotubes
Abstract
Green luminescent, graphene quantum dots (GQDs) with a uniform size of 3, 5, and 8.2(±0.3) nm in diameter were prepared electrochemically from MWCNTs in propylene carbonate by using LiClO 4 at 90 °C, whereas similar particles of 23(±2) nm were obtained at 30 °C under identical conditions. Both these sets of GQDs displayed a remarkable quantum efficiency of 6.3 and 5.1 %, respectively. This method offers a novel strategy to synthesise size‐tunable GQDs as evidenced by multiple characterisation techniques like transmission and scanning electron microscopy, atomic force microscopy, Raman spectroscopy and X‐ray diffraction (XRD). Photoluminescence of these GQDs can be tailored by size variation through a systematic change in key process parameters, like diameter of carbon nanotube, electric field, concentration of supporting electrolyte and temperature. GQDs are promising candidates for a variety of applications, such as biomarkers, nanoelectronic devices and chemosensors due to their unique features, like high photostability, biocompatibility, nontoxicity and tunable solubility in water.
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Narrow graphene nanoribbons from carbon nanotubes
Jiao, L., Zhang, L., Wang, X., Diankov, G., & Dai, H. (2009) · Nature · doi:10.1038/nature07919 · Cited by 2,441
One-step synthesis of fluorescent carbon nanoparticles by laser irradiation
Hu, S.-L., Niu, K.-Y., Sun, J., Yang, J., Zhao, N.-Q., & Du, X.-W. (2009) · J. Mater. Chem. · doi:10.1039/b812943f · Cited by 968
Cited by
Zhu, S., Song, Y., Zhao, X., Shao, J., Zhang, J., & Yang, B. (2015) · Nano Research · doi:10.1007/s12274-014-0644-3 · Cited by 2,781
Georgakilas, V., Perman, J. A., Tucek, J., & Zboril, R. (2015) · Chemical Reviews · doi:10.1021/cr500304f · Cited by 2,147
Review of Carbon and Graphene Quantum Dots for Sensing
Li, M., Chen, T., Gooding, J. J., & Liu, J. (2019) · ACS Sensors · doi:10.1021/acssensors.9b00514 · Cited by 991
Applications of Phosphorene and Black Phosphorus in Energy Conversion and Storage Devices
Pang, J., Bachmatiuk, A., Yin, Y., Trzebicka, B., Zhao, L., Fu, L., Mendes, R. G., Gemming, T., Liu, Z., & Rummeli, M. H. (2018) · Advanced Energy Materials · doi:10.1002/aenm.201702093 · Cited by 518
Synthesis and applications of graphene quantum dots: a review
Chen, W., Lv, G., Hu, W., Li, D., Chen, S., & Dai, Z. (2018) · Nanotechnology Reviews · doi:10.1515/ntrev-2017-0199 · Cited by 394
Metadata
- Authors
- Shinde, D. B., & Pillai, V. K.
- Venue
- Chemistry – A European Journal
- Publisher
- Wiley
- Published
- 2012-08-14
- Volume
- 18
- Issue
- 39
- Pages
- 12522-12528
- ISSN
- 0947-6539 (ISSN-L)
- 1521-3765
- OpenAlex
- W2140872587
- Cited by
- 426
- References
- 2
- FWCI
- 10.71
- Type
- journal article
- Language
- en
- Open access
- closed
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- Shinde, D. B., & Pillai, V. K. (2012). Electrochemical Preparation of Luminescent Graphene Quantum Dots from Multiwalled Carbon Nanotubes. Chemistry – A European Journal. https://doi.org/10.1002/chem.201201043
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