2020/09/11 by Mohammadine, El Haddad, Tourirt, A., Laamari, R. +1
#Adsorption #Basic Blue 9 #Pine Sawdust #Removal dye
paper · doi:10.48317/imist.prsm/morjchem-v2i1.1874
The adsorption of Basic Blue 9 as cationic dye from aqueous solutions onto Moroccan Pine Sawdust was investigated. Effects of various parameters were studied like contact time, pH, adsorbent dose and initial concentration of Basic Blue 9 dye for the removal efficiency % onto Moroccan Pine Sawdust. Removal efficiency % can be attained 96% in less than 20 min. The experimental data fitted by pseudo- second-order kinetic model to describe the adsorption of Basic Blue 9 on Moroccan Pine Sawdust. Thermodynamic results revealed that the adsorption of Basic Blue 9 onto Moroccan Pine Sawdust is an endothermic and spontaneously process. The Gibbs energy DG0 decreased from - 2.57 kJ/mol to - 3.08 kj/mol with increase in temperature from 298 K to 323 K indicating a increase in feasibility of biosorption at higher temperature. The Langmuir and Freundlich isotherms for adsorption of Basic Blue 9 onto Moroccan Pine Sawdust were investigated. Accordingly, Moroccan Pine Sawdust was shown to be a very efficient, eco-friendly and low cost adsorbent and a promising alternative for removal dyes from aqueous solutions.