@article { author = {Bouranene, Saliha and Sedira, Nora and Zeghadnia, Lotfi and Guebail, Abde El Krim}, title = {Kinetic Study of the Adsorption of Zinc and Copper Ions on to Activated Carbon Prepared from Date Pits}, journal = {International Journal of New Chemistry}, volume = {9}, number = {1}, pages = {21-35}, year = {2022}, publisher = {Iranian Chemical Science and Technologies Association}, issn = {2645-7237}, eissn = {2383-188X}, doi = {10.22034/ijnc.2022.1.3}, abstract = {In the present work, an activated carbon material has been prepared from date pits to remove zinc (Zn2+) and copper (Cu2+) from a wastewater. The effect of some parameters on adsorption performance has been investigated. The optimization of operational conditions allowed increasing the adsorption of Zn2+ ions from 33% to 85% and the adsorption of Cu2+ from 23% to 70%. The optimum conditions found are a mass of adsorbent of 4g, a stirring speed of 500 rpm and a ratio of 15 for volume of liquid / mass of solid. It has been shown that the adsorbent has more affinity to the copper ions than zinc ions and the modeling results gave adsorption isotherms type ā€œCā€. The results also showed that the kinetics of zinc and copper ions adsorption were described by a pseudo second-order rate model and controlled by the internal diffusion which can be considered as limiting step that controls the rate transfer of these ions to the solid surface.}, keywords = {activation,Adsorption,Modeling,Date pits,heavy metals}, url = {https://www.ijnc.ir/article_246606.html}, eprint = {https://www.ijnc.ir/article_246606_961f6b5c1cc527058910e5b0d381c0c3.pdf} }