Characterization of activated charcoal from sugar palm bunches (Arengga pinnata (Wurmb) Merr) and the application as adsorbent lead (Pb), copper (Cu) and chrome (Cr) in solution

Abstract

Abstract This study proposes to determine the ability of activated charcoal from sugar palm bunches (Arengga Pinnata MERR) as lead adsorbent (Pb), copper (Cu) and chromium (Cr). The sample was carbonated with a temperature of 200-400°C, then mashed by using mortal and sieved using a size of 100 mesh. Samples were activated with activation temperature variations of 600°C, 700°C, and 800°C and characterized using Scanning Electron Microscope (SEM) with 2500x magnification and Atomic Absorption Spectroscopy (AAS). The SEM results indicate surface morphology of the best-activated charcoal of at a temperature of 700°C with uniformly distributed pore size. In the AAS analysis results obtained for Pb absorption capacity of 0.0082 mg/g and absorption efficiency of 86.86%, the Cu absorption capacity of 0.0203 mg/g and absorption efficiency of 94.37% and Cr adsorption capacity of 0.0243 mg/g and efficiency absorption 96.39%. The value of absorption capacity obtained the result of AAS characterization, and the best adsorption efficiency was at 700°C.