In this study, coal samples are synthesized from durian peel (the outer protective layer of durian fruit) by drying, mincing, and putting into a sieve with a fine mesh of 1-2 micrometers. Coal samples are activated by 2M NaOH solution with 1:20 (w/v) ratio for 2 hours and then heated at 700 degrees Celsius for 1 hour to create activated carbon. After preparation, samples are analyzed using advanced analytic technology such as FTIR spectroscopy and SEM. |