Kinetic and theoretical studies of metal ion adsorption in KDP solution
Kinetic and theoretical studies of metal ion adsorption in KDP solution
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DOI：
10.1016/j.apsusc.2008.10.112
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发表时间：
2009-01
影响因子：
6.7
通讯作者：
Y. Asakuma;Shingo Takeda;K. Maeda;K. Fukui
中科院分区：
文献类型：
--
作者：
Y. Asakuma;Shingo Takeda;K. Maeda;K. Fukui
使用动力学、平衡模型和计算化学方法分析了饱和磷酸二氢钾水溶液中的金属离子吸附。 Freundlich 模型中的等温常数 (KF 和 n) 和一阶 Lagergren 动力学模型参数 k 有助于总体了解三价和二价金属离子的基本吸附行为。通过每种金属离子的 ESP 值与这些实验参数之间的相关性，发现基于静电势分布的静电力是金属离子吸附的基本特征。
Metal ion adsorption in saturated aqueous potassium dihydrogen phosphate solution was analyzed using kinetic, equilibrium model and computational chemistry approaches. The isotherm constants (KFand n) in the Freundlich model and the first order Lagergren kinetic model parameter k assist with a general understanding of the fundamental adsorption behavior of trivalent and divalent metal ions. The electrostatic force based on electrostatic potential distribution was found to be an essential feature for metal ion adsorption via a correlation between the ESP values of each metal ion and these experimental parameters.