Adsorption Of Acetic Acid On Activated Carbon Synthesized From Cashew Nut Shell

Bui Xuan Vuong
Faculty of Pedagogy in Natural Sciences, Sai Gon University, 273 An Duong Vuong,
District 5, Ho Chi Minh City, (VIETNAM)

PAGE NO: 65-69

ABSTRACT – DOI: https://dx.doi.org/10.47204/EMSR.2.2.2021.065-069

This study presents the extraction of activated carbon (AC) from the cashew nut shell by thermal processing. The synthetic activated carbon is amorphous material and has a porous structure. The removal of acetic acid on synthetic activated carbon was evaluated. The obtained results show that the synthetic activated carbon has a good capacity for acetic acid elimination with high efficiency of 94.5 % after 40 minutes of the experiment. The study of adsorption isotherm showed that the acetic acid removal was suitable for both the Langmuir and Freundlich models, in which the Langmuir model was more fitted due to the higher value of correlation coefficient (R² = 0.99692). The maximum adsorption capacity of acetic acid was the high value (Q_m = 4.853 mol.mL.L^-1.g^-1). Thus, synthetic activated carbon extracted from the cashew nut shell, a low-cost material, presents as a potential material for acetic acid removal in a contaminated water environment.