PENGARUH LAMA AKTIFASI DENGAN H3PO4 DAN UKURAN BUTIR ARANG CANGKANG KELAPA SAWIT TERHADAP UKURAN PORI DAN LUAS PERMUKAAN BUTIR ARANG AKTIF

Abstract

Palm oil shells can be useful as raw material for making activated carbon because it is very effective at adsorbing liquid waste. Activated carbon is one of the adsorbents that has better adsorption and surface area than other adsorbents. This large surface area is caused by having a pore structure. These pores cause activated carbon to have the ability to absorb. This study aims to determine the effect of activation time by immersion of H₃PO₄ and grain size of oil palm shell charcoal on the surface area of activated charcoal grains. The treatment used was the duration of activation by immersion H₃PO₄ with intervals A₀ = 0 hours, A₈ = 8 hours, A₁₆ = 16 hours and A₂₄ = 24 hours and Grain Size Mesh 100 (D₁), Mesh 50 (D₀), and Mesh 200 (D₂ ) The variables observed were the surface area of activated charcoal. Analysis to obtain active charcoal surface area data was carried out using Braunanear Emmelt and Teller (BET), then presented in the form of tables and graphs. The results showed that the surface area of the characterization using BET with the activation process of the long immersion of Phosphoric Acid (H₃PO₄), generally obtained the optimum surface area at immersion for 16 hours for all grain sizes. The widest active charcoal surface area is found in grain size Mesh 200.