One-Pot Biosynthesis of Carbon-Coated Silver Nanoparticles Using Palm Leaves as a Reductant and a Carbon Source

In this study, carbon-coated silver nanoparticles (Ag@CNPs) weresynthesized with a one-pot hydrothermal method using palm leaves asa reductant and a carbon source. SEM, TEM, XRD, Raman, and UV-visanalyses were employed to characterize the as-prepared Ag@C NPs. Resultsshowed that the diameter of silver nanoparticles (Ag NPs) and thecoating thickness could be controlled by changing the amount of biomassand the reaction temperature. The diameter ranged from 68.33 to 143.15nm, while the coating thickness ranged from 1.74 to 4.70 nm. As thebiomass amount and the reaction temperature increased, the diameterof Ag NPs and the coating thickness became larger. Thus, this workprovided a green, simple, and feasible method for the preparationof metal nanocrystals.

Automated summary

Carbon-coated silver nanoparticles (Ag@CNPs) were synthesized using a one-pot hydrothermal method with palm leaves as the reductant and carbon source. The as-prepared Ag@C NPs were characterized using SEM, TEM, XRD, Raman, and UV-vis analyses. Results showed that the diameter of Ag NPs and the coating thickness could be controlled by adjusting the biomass amount and reaction temperature. This study provides a green and simple method for the preparation of metal nanocrystals.