This research utilized a modified method of preparing activated carbons (ACs) derived from waste coconut shells loaded with silver nanoparticles (AgNP).
This research utilized a modified method of preparing activated carbons (ACs) derived from waste coconut shells loaded with silver nanoparticles (AgNP). AC was prepared through chemical impregnation method of coconut shells in H3PO4 and carbonization in a muffle furnace, while AgNP was prepared following the Turkevich method. These two substances were then combined to form silver nanoparticle-loaded activated carbon (AgAC). The samples were subjected to different characterization techniques: FTIR analysis to test the purity of the AC, FE-SEM to analyze the surface morphology of AgAC, and UV-Vis determination of AgNP formation. After characterization, the antibacterial activity of AgAC was evaluated using the Agar Well Diffusion Method. Results show that AgNPs were observed to form at an average maximum absorbance of 2.063 at a wavelength interval of 421-423 nm. It was also observed that the synthesized AC exhibited the FTIR result comparable to the commercially-available AC. Further, FE-SEM analyses reveal that AgNP adhered to the surface and pores of the AC. These results indicate that the AgNP was successfully constructed using the Turkevich method and that these adhered to the AC sample, signaling the formation of AgAC. Finally, AgAC exhibited antibacterial activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa.
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