Fuel waste to fluorescent carbon dots and its multifarious applications
Venkatesan Srinivasan, Mariadoss Asha Jhonsi, Arunkumar Kathiravan, Muthupandian Ashokkumar
SENSORS AND ACTUATORS B-CHEMICAL | ELSEVIER SCIENCE SA | Published : 2019
Herein, we report the fluorescent carbon dots (KCDs) from kerosene fuel soot via simple one pot oxidative acid treatment. The obtained KCDs were thoroughly characterized by pivotal techniques. The prepared KCDs are 5 nm sized quasi-spherical particles and exhibited an outstanding stability against pH, NaCl and light irradiation. Intriguingly, the KCDs display an excitation wavelength independent emissive property. Further, the KCDs were successfully utilized for multifarious applications such as photoinduced electron transfer (PET) and sensing studies. For PET studies, charged porphyrins (tetra pyridyl and tetra sulphonato) were selected and the fluorescence of associated porphyrin was quenc..View full abstract
Awarded by Department of Science and Technology (DST), New Delhi, India
V.S. thanks to the Department of Chemistry and BSACIST for the Junior Research Fellowship. M.A.J. thanks the Department of Science and Technology (DST), New Delhi, India for the DST-SERB Project (Ref. No. SB/FT/CS-125/2013, Dt. 30/06/2014). MAJ also thanks to SAIF, IIT Madras for assistance with NMR, HR-SEM and TCSPC facilities. MAJ also acknowledge to Ms. S. Thulasi, project fellow and Ms. G. Loganayagi, PG student for their assistance in soot collections and benchmark experiments. A.K. thanks NCUFP, University of Madras for spectral measurements.