Tunable carbon quantum dots from starch via microwave assisted carbonization
| dc.contributor.author | Adams, L.A. | |
| dc.contributor.author | Fagbenro-Owoseni, Kafayat | |
| dc.date.accessioned | 2019-04-26T11:38:01Z | |
| dc.date.available | 2019-04-26T11:38:01Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | Tunable luminescence carbon dots (C-dots) were prepared through microwaveassisted carbonization of aqueous starch suspension mediated by sulfuric and phosphoric acids respectively as surface passivating agents. The as-prepared C-dots showed green, blue and yellow luminescence under 365nm UV light. The C-dots were further characterized by UV-Vis, FTIR, and band gap determination. Fourier transform infrared spectroscopy (FTIR) studies revealed bands at 3460 cm-1 (OH), 2979 cm-1 1708 cm-1 (C=O), 1188 and 1040cm-1 (C-O), and 1397 cm-1 (C=C) indicative of the graphitic nature of the carbon. The UV-Vis showed blue shifted absorption bands, while the band gap calculated revealed narrow sizing of the C-dots in the semiconductor range. The results suggest that this approach may serve as a facile route to colour tunable photoluminescent C-dot materials with potential biological applications | en_US |
| dc.identifier.citation | Adams, L. A., & Fagbenro-Owoseni, K. A. (2017). Tunable carbon quantum dots from starch via microwave assisted Carbonization. Int. J. Nanoelectronics Mater, 10, 11-20. | en_US |
| dc.identifier.uri | https://ir.unilag.edu.ng/handle/123456789/4028 | |
| dc.language.iso | en | en_US |
| dc.publisher | UniMAP Press | en_US |
| dc.subject | Carbon quantum dots | en_US |
| dc.subject | Semiconductor | en_US |
| dc.subject | Starch | en_US |
| dc.subject | Microwave | en_US |
| dc.subject | Luminescence | en_US |
| dc.title | Tunable carbon quantum dots from starch via microwave assisted carbonization | en_US |
| dc.type | Article | en_US |