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In this study, carbon activation was carried out on corncobs at 700 °C using H₃PO₄ chemical activation method. While silver coating activated carbons, a reduction procedure with hydrazine was used. The crystal characteristics of the obtained activated carbon and silver coated activated carbon (AC/Ag) were characterized using X-ray diffraction (XRD), structural characteristics were characterized via Fourier transform electron infrared spectroscopy FTIR. The surface morphology was characterized using scanning electron microscope (SEM) and the specific surface area was characterized using Brunauer-Emmett-Teller theory (BET). The BET surface area of the activated carbon produced was determined as 970.38 m²/g at a temperature of 700 °C after the 24 h of impregnation time and in the activated carbon obtained from a 1:2 impregnation ratio. It is clearly visible in the SEM photographs that silver ions are …