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  • 标题:ADSORPTION OF Pb (II) IONS FROM AQUEOUS SOLUTIONS ONTO PALIURUS SPINA-CHRISTIMILL. FRUTIS AND SEEDS
  • 本地全文:下载
  • 作者:Ali Savran ; Ali Riza Kul ; Senol Kubilay
  • 期刊名称:Fresenius Environmental Bulletin
  • 印刷版ISSN:1018-4619
  • 出版年度:2020
  • 卷号:29
  • 期号:8
  • 页码:6576-6583
  • 语种:English
  • 出版社:PSP Publishing
  • 摘要:In this study, siru-chstiM ill, frutis and seeds (PSCFS) was used as an adsorbent for P b(II) ions rem oval 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 isotherm al data could be w ell described by the Freundlich equation. The kinetic data fit w ell w ith 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 m aterials for removal from water of Pb (II) ions.
  • 关键词:Adsorption;kinetics;thermodynamic;isotherms;lead
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