Title : Preparation of activated carbon derived from arecanut shell agro waste using phosphoric acid catalyst : Estimation of ferets diameter
In this work, activated carbon was produced by chemical activation using phosphoric acid catalyst. Activated carbon derived from agricultural waste of arecanut shell. Activated carbon is produced by chemical activation at temperature of 4000C by slow pyrolysis. Impregnation ratio maintained is 1:1, 2:1, 3:1, 4:1 (Phosphoric acid: Biomass) by stichiometry. Optimized results obtained at 3:1 impregnation ratio. The BET surface area and iodine number surface area was calculated and compared. The TGA investigation revealed that activated carbon is thermally stable at 4800C. SEM images reveal morphological change caused on surface. Ferets diameter is estimated to know the circularity of particle. Iodine number surface area, iodine number, methylene blue number results proved 3:1 is optimized impregnation ratio is important in determining the quality of activated carbon obtained.