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Removal of Cd(II) ions from aqueous solutions, by adsorption onto Junipers Procera Roots

机译:通过吸附到瞻博根上去除水溶液中的Cd(II)离子

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This study explored the adsorption behavior of Cd(II) ions on Junipers Procera Roots powder from aqueous solutions. The effect of various operational parameters such as pH, contact time, initial adsorbate concentration, dosage of adsorbent and temperature on adsorption of Cd(II) ions were investigated using batch adsorption experiments. The optimum pH for Cd(II) adsorption was found to be 7.0. The suitability of Langmuir and Freundlich adsorption models to the equilibrium data was investigated. The adsorption was well described by the Freundlich isotherm model indicating the presence of heterogeneous sites for Cd(II) adsorption. Thermodynamic parameters showed that the adsorption of Cd(II) on Junipers Procera Roots was feasible, spontaneous and exothermic.
机译:本研究探讨了Cd(II)离子在水溶液中对Junipers Procera Roots粉末的吸附行为。使用分批吸附实验研究了pH,接触时间,初始吸附物浓度,吸附剂用量和温度等各种操作参数对Cd(II)离子吸附的影响。发现Cd(II)吸附的最佳pH为7.0。研究了Langmuir和Freundlich吸附模型对平衡数据的适用性。吸附通过Freundlich等温模型很好地描述,表明Cd(II)吸附存在异质位点。热力学参数表明Cd(II)在杜鹃根上的吸附是可行的,自发的并且是放热的。

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