Savran, A.Kul, A.R.Kubilay, S.Selcuk, N.C.2025-05-102025-05-1020201018-46192-s2.0-85091922161https://hdl.handle.net/20.500.14720/280In this study, Paliurus spina-christi Mill, frutis and seeds (PSCFS) was used as an adsorbent for Pb(II) ions removal from water solutions. The effect of various experimental parameters was investigated using a batch adsorption technique. In the adsorption experimental, temperature, contact time and concentrations effects upon Pb (II) ions on PSCFS were thoroughly examined at pH 5.2. Results show that a temperature value of 45 °C is favorable for the adsorption of Pb (II) ions. The isothermal data could be well described by the Freundlich equation. The kinetic data fit well with the pseudo-second-order kinetic model. The adsorption capacity of PSCFS was found to be 14.97°1 mg g- 1 at 45 °C according to pseudo-second-order model data. Thermodynamic parameters such as activation energy (Ea) and change in the free energy (AG°), the enthalpy (AH°), and the entropy (AS°) were also evaluated. The all adsorption process was endothermic and spontaneous. The results indicate that PSCFS could be employed as low-cost materials for removal from water of Pb (II) ions. © by PSP.eninfo:eu-repo/semantics/closedAccessAdsorptionIsothermsKineticsLeadThermodynamicArticle298N/AN/A65766583