Indonesia Conference Directory

In this study, we investigated the formation of carbon prepared from corncob using coprecipitation method. The synthesis of corncob was carried out by weighing as much as 5 grams and adding 40 mL of HCl solution by stirring process at 750 rpm at room temperature. The result of the reaction was titrated by using 20 mL of NH4OH solution. The X-ray diffraction data analysis the formation of carbon-graphite nitrate was detected with the space group of R-3m space group. The scanning electron microscopy data presented that the samples had a morphology showing the presence of large aggregate particles. In addition, the elemental mapping analysis also captured the highest carbon element with the composition of 78.83%. The molecular bonds in the charcoal included C-O, C-H and C=C were detected in several wavenumber positions.