@article{ART003070670},
author={Kansay Vishal and Sharma Varun Dutt and Chandan G. and Chakrabarti S. and Bera M. K.},
title={Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity},
journal={Carbon Letters},
issn={1976-4251},
year={2024},
volume={34},
number={3},
pages={1045-1054},
doi={10.1007/s42823-023-00659-0}
TY - JOUR
AU - Kansay Vishal
AU - Sharma Varun Dutt
AU - Chandan G.
AU - Chakrabarti S.
AU - Bera M. K.
TI - Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity
JO - Carbon Letters
PY - 2024
VL - 34
IS - 3
PB - Korean Carbon Society
SP - 1045
EP - 1054
SN - 1976-4251
AB - The detailed understanding of fluorescence emission processes is still unclear. This study demonstrates Aegle marmelos derived luminescent heteroatoms (N, Ca, K) doped carbon quantum dots (CQDs) using an economically and ecologically sustainable synthesis process without the necessity for any doping precursors due to its phytochemical, vitamin and mineral content. Carboxyl functionalization was done by adding lemon juice to the fruit extract. The morphological, physiochemical, compositional, crystallinity, and surface functional groups having heteroatom doped CQDs were analysed by HRTEM, EDX, XPS, XRD, FTIR etc. Besides, CQDs exhibited pH and solvent-dependent tuneable fluorescence characteristics. In fact, beyond pH 7.77, a protonation-deprotonation-driven red-shift was observed together with a decrease in the contribution of prominent peaks. Meanwhile, the features of solvatochromic fluorescence were examined in a range of aprotic and protic solvents with low and high polarity. Based on the studied Kamlet–Taft parameters and the obtained spectroscopic characterizations, a suitable fluorescence emission mechanism is provided. The observed solvatochromic fluorescence is thought to be caused by a combination of dipole moment polarisation, intramolecular charge transfer processes with or without H-bond stabilisation via the interaction of heteroatoms doped CQDs with solvent mediated by electron donation and acceptance from various surface functional groups such as hydroxyl, carboxyl with solvent molecules. Hence, this study is believed to promote the development of eco-tuneable fluorescent heteroatom doped CQDs and provide further insights into the fundamental fluorescence mechanisms, which include the relationship between morphology, surface properties and plausible quantum effects between CQDs and solvents.
KW - Heteroatoms (N;Ca;K) doped CQDs pH-responsive fluorescence Fluorescence mechanism Solvatochromic fluorescence Intramolecular charge transfer
DO - 10.1007/s42823-023-00659-0
ER -
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S. and Bera M. K.. (2024). Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity. Carbon Letters, 34(3), 1045-1054.
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S. and Bera M. K.. 2024, "Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity", Carbon Letters, vol.34, no.3 pp.1045-1054. Available from: doi:10.1007/s42823-023-00659-0
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S., Bera M. K. "Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity" Carbon Letters 34.3 pp.1045-1054 (2024) : 1045.
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S., Bera M. K.. Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity. 2024; 34(3), 1045-1054. Available from: doi:10.1007/s42823-023-00659-0
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S. and Bera M. K.. "Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity" Carbon Letters 34, no.3 (2024) : 1045-1054.doi: 10.1007/s42823-023-00659-0
Kansay Vishal; Sharma Varun Dutt; Chandan G.; Chakrabarti S.; Bera M. K.. Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity. Carbon Letters, 34(3), 1045-1054. doi: 10.1007/s42823-023-00659-0
Kansay Vishal; Sharma Varun Dutt; Chandan G.; Chakrabarti S.; Bera M. K.. Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity. Carbon Letters. 2024; 34(3) 1045-1054. doi: 10.1007/s42823-023-00659-0
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S., Bera M. K.. Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity. 2024; 34(3), 1045-1054. Available from: doi:10.1007/s42823-023-00659-0
Kansay Vishal, Sharma Varun Dutt, Chandan G., Chakrabarti S. and Bera M. K.. "Facile green synthesis of heteroatoms doped Aegle marmelos-derived carbon quantum dots and its tuneable fluorescence characteristics influenced by solvent polarity" Carbon Letters 34, no.3 (2024) : 1045-1054.doi: 10.1007/s42823-023-00659-0