ADSORPTION OF METHYLENE BLUE FROM AQUEOUS SOLUTION USING ACTIVATED CARBON MADE FROM OF DURIAN PEEL

Abstract

In this study, activated carbon from durian peel (ACDP) was successfully prepared. The fabricated ACDP
had a porous surface with a specific surface area of 348.0017 m²/g and an isoelectric point of 6.03. The
ACDP materials were applied for adsorption of methylene blue from aqueous solution using static
adsorption method. The effects of pH (3.0 – 10.0), adsorption time (30 - 210 min), the amount of adsorbent
(0.01 - 0.125 g), and initial concentration of of methylene blue (50 - 500 mg/L) on the adsorption were
investigated. The optimum condition was found at pH = 7.0, at adsorption time of 90 min. The maximum
monolayer adsorption capacity of ACDP was 57.47 mg/g. The prepared ACDP therefore could act as a
promising adsorbent for the removal of methylene blue from aqueous solution.