Browsing by Author "Andriani, Dini"

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    POTENSI LIMBAH BIOMASSA DAUN PALA SEBAGAI BAHAN DASAR PEMBUATAN KARBON AKTIF BERPORI
    (Elfitra, 2023-12) Andriani, Dini; Taer, Erman
    Porous carbon based on nutmeg leaf biomass waste was chosen as the basic material for making activated carbon. Porous carbon was synthesized using KOH chemical activator with varying concentrations of 0,3 M, 0,5 M, and 0,7 M to obtain optimal conditions of activated carbon. The preparation of carbon electrode samples starts from the drying stage, pre-carbonization, smoothing with mortar and ball milling, sieving using a 60 μm sieve, KOH chemical activation, carbon pellet printing, carbonization and physical activation to the optimum temperature of 850°C in an N2 and CO2 gas environment. The effect of varying the concentration of KOH activator was tested and the physical properties were compared. The results of the characterization of the physical properties of the nutmeg leaf activated carbon electrode were obtained through the calculation of the percentage of density shrinkage. Variations in the concentration of KOH activator can reduce the percentage of density of carbon pellets DP 0,3, DP 0,5, and DP 0,7 by 35,80%, 42,04%, and 42,68% respectively. Based on the characterization results, the effect of adding KOH chemical activating agent on all DP samples can increase the evaporation of impurities other than carbon which is indicated by the increase in shrinkage value.