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Green synthesis of carbon dots-functionalized silver nanoparticles for SERS-based detection of thiram fungicide.
- Source :
-
Applied Physics A: Materials Science & Processing . Nov2023, Vol. 129 Issue 11, p1-10. 10p. - Publication Year :
- 2023
-
Abstract
- This study reports the reduction of AgNO3 using green-synthesized carbon dots (CDs) derived from the leaf extract of Datura metel without the aid of any chemical-reducing agent. The CDs act as both reducing and stabilizing agent to synthesize CDs-functionalized silver nanoparticles (Ag/CDs) and are employed for surface-enhanced Raman spectroscopy (SERS)-based detection of thiram fungicide. The formation of Ag/CDs is confirmed with UV–Vis absorption spectroscopy and Raman spectroscopy. The synthesized Ag/CDs exhibit high stability and the fabricated SERS substrate exhibited a detection range of 10–3 to 10–8 M with a corresponding correlation coefficient of 0.98. The obtained minimum detection limit of thiram is 10–8 M with an enhancement factor of 1.3 × 105 which is much lower than the maximum allowed residual limit of 7 ppm. This study emphasizes the green route to synthesize CDs-functionalized stable AgNPs for the SERS-based detection of thiram fungicide and explained the sensing mechanism. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09478396
- Volume :
- 129
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Applied Physics A: Materials Science & Processing
- Publication Type :
- Academic Journal
- Accession number :
- 173626926
- Full Text :
- https://doi.org/10.1007/s00339-023-07038-6