POTENSI LIMBAH BIOMASSA DAUN PALA SEBAGAI BAHAN DASAR PEMBUATAN KARBON AKTIF BERPORI
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Date
2023-12
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Elfitra
Abstract
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.
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Keywords
Nutmeg leaves, KOH activation, activated carbon
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