GREEN SYNTHESIS OF CARBON NANOPARTICLES FROM Barleria cristata USING A BIOSOOT METHOD

Abstract:
Green synthesis of carbon nanoparticles (CNPs) has gained increasing attention
due to its eco-friendly nature, low cost, and sustainability. In the present study, carbon
nanoparticles were synthesized using a biosoot method derived from flower Barleria
cristata, a naturally available plant resource. The biosoot was obtained through
controlled combustion of dried flower material and subsequently processed and
dispersed in an aqueous medium to produce carbon nanoparticles without the use of toxic
chemicals or complex synthesis routes. The synthesized carbon nanoparticles were
characterized using Dynamic light scattering (DLS) technique to evaluate their size and
dispersion behaviour. The analysis revealed that the particles predominantly fall within
the nanoscale region, with major intensity distribution peaks observed around ~364 nm
and ~529–641 nm, indicating the formation of nano-sized carbon structures with
minimal agglomeration. In addition, the samples exhibited low polydispersity index
(PDI) values ranging from 0.006 to 0.092, suggesting a narrow particle size distribution
and good dispersion stability. The mean particle size and distribution profiles confirm
the successful synthesis of carbon nanoparticles via the biosoot approach. This study
demonstrates a simple, green, and sustainable strategy for synthesizing carbon
nanoparticles using Barleria cristata, highlighting the potential of plant-derived biosoot
as an effective carbon source. Further studies are currently in progress to investigate the
biological properties of the synthesized carbon nanoparticles and to explore their
potential applications in biomedical and environmental fields.
Keywords: Carbon nanoparticles, Biosoot method, green synthesis, Barleria cristata,
DLS, polydispersity
Nature is not a place to visit It is home – Gary Snyder