@article{ajie2025911,
author={{Tchanang, Gustave and Kepdieu, Jean M. and Goumou, Kalaya and Bald¨¦, Mamadou Y. and Ekani, Cyprien J. and Djangang, Chantale N. and Blanchart, Phillipe},
title={Adsorptive Removal of Basic Blue 9 by ¦Ã-Al<SUB>2</SUB>O<SUB>3</SUB>-based Kaolinitic Clay: Parametric, Kinetic and Equilibrium Studies},
journal={American Journal of Industrial Engineering},
volume={9},
number={1},
pages={1--7},
year={2025},
url={https://pubs.sciepub.com/ajie/9/1/1},
issn={2377-4339},
abstract={Experimental and theoretical investigations related to the adsorptive removal of Basic blue 9 (BB9) onto<b> </b>¦Ã-Al<SUB>2</SUB>O<SUB>3</SUB> (gamma-Nano alumina) have been done in the present work. Batch tests were carried out varying some processing parameters namely initial dye concentration (5 - 50 mg/L), adsorbent dose (0.5 - 5 g/L), initial pH (1 - 12) and contact time (0 - 30 min). Under conditions of C<SUB>0</SUB> = 50 mg/L; pH = 11; dose = 1g/L and t = 15 min, more than 83.6% of the BB9 molecules were removed corresponding to an adsorption capacity of 41.8 mg/g. The pseudo-second order and the Langmuir models fit well the experimental data with highest R<SUP>2</SUP> values of 0.99 and 0.91 respectively and lowest values of ¦Ö<SUP>2</SUP>. This suggests adsorption process as limiting step on a homogeneous distribution of active sites on the adsorbent surface. The first step of adsorption mechanism involved electrostatic interactions between the negatively charged ¦Ã-Al<SUB>2</SUB>O<SUB>3</SUB> surface in basic medium and secondly electrophilic-nucleophilic interactions. Compared to other adsorbents, ¦Ã-nano Al<SUB>2</SUB>O<SUB>3</SUB> obtained in this work could be a good alternative for treatment water containing dye BB9.},
doi={10.12691/ajie-9-1-1}
publisher={Science and Education Publishing}
}