Facile Hydrothermal and Solvothermal Synthesis and Characterization of Nitrogen-Doped Carbon Dots from Palm Kernel Shell Precursor

Carbon dots (CDs), a nanomaterial synthesized from organic precursors rich in carbon content with excellent fluorescent property, are high demand for many purposes, including sensing and biosensing applications. This research focused on preparing CDs natural abundant waste, palm kernel shells (PKS) obtained oil biomass, aiming Ethylenediamine L-phenylalanine doped were produced via the hydrothermal solvothermal methods using one-pot synthesis techniques an autoclave batch reactor. The as-prepared N-CDs shows photoluminescence (PL) property quantum yield (QY) of 13.7% ethylenediamine (EDA) (CDs-EDA) 8.6% (L-Ph) (CDs-LPh) excitation/emission wavelength 360 nm/450 nm. transmission electron microscopy (TEM) images show have average particle size 2 nm both CDs. UV-Visible spectrophotometric results showed C=C C=O transition. FTIR confirm presence functional groups, such as -OH, -C=O, -NH2 N-CDs, X-ray diffraction pattern that crystalline, depicted sharp peaks. work demonstrated shell biomass often thrown away waste can produce physicochemical properties.