Preparation of Activated Carbon from Sugarcane Bagasse Waste for the Adsorption Equilibrium and Kinetics of Basic Dye

Abstract:

This research aimed to study the preparation of activated carbon from sugarcane bagasse waste. The sugarcane bagasse adsorbent was prepared by calcination at 600°C for 2 hours with the use of sulfuric acid (H₂SO₄) as a chemical activation. The adsorption surface possessed high specific surface area (838 m²/g) with mesoporous diameter. Factors explaining adsorption including adsorption isotherm, adsorption kinetic and adsorption mechanism were constructed from methylene blue adsorption experiments. It was found that the equilibrium data was best represented by Freundlich isotherm, showing multilayer coverage of dye molecules at the outer surface of adsorbent with a cooperative adsorption (physisorption and chemisorption). The kinetic of methylene blue adsorption was found to follow pseudo-second-order rate kinetic model, with a good correlation coefficient. This indicated that the overall rate of the dye adsorption process was controlled by the chemisorption process.

• Periodical: Key Engineering Materials (Volume 751)
• Pages: 671-676
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.751.671
• Online since: August 2017
• Authors: Tawan Chaiwon, Panatda Jannoey, Du Ang Dao Channei*
• Keywords: Activated Carbon, Adsorption Isotherm, Adsorption Kinetics, Sugarcane Bagasse

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