Adsorption of platinum(Ⅳ)onto D301R resin
来源期刊：Rare Metals2008年第3期
论文作者：MO Jianjun~a SHI Linmei~b GU Yongbing~a YAN Guobing~a ~a Department of Chemistry,Lishui College,Lishui ,China ~b Lishui Technical College,Lishui ,China
文章页码：233 - 237
摘 要：<正>Pt（Ⅳ）was quantitatively adsorbed by D301R resin in the medium of pH=3.47.The statically saturated adsorption capacity is 410 mg/g. Pt（Ⅳ）adsorbed on D301R resin can be eluted by 1.0-2.0 mol/L NaOH.The rate constant is k298=5.43×10.（-5）s-1.The adsorption of Pt（Ⅳ） on D301R resin obeys the Freundlich isotherm.The adsorption parameters of thermodynamics are as follows:enthalpy changeΔH=4.37 kJ/mol,Gibbs free energy changeΔG=-5.39 kJ/mol,and entropy changeΔS=32.76 J/（mol·K）.The apparent activation energy is Ea=22.5 kJ/mol.The coordination molar ratio of the functional group of D301R resin to Pt（Ⅳ）is 2:1.
摘要：<正>Pt（Ⅳ）was quantitatively adsorbed by D301R resin in the medium of pH=3.47.The statically saturated adsorption capacity is 410 mg/g. Pt（Ⅳ）adsorbed on D301R resin can be eluted by 1.0-2.0 mol/L NaOH.The rate constant is k298=5.43×10.（-5）s-1.The adsorption of Pt（Ⅳ） on D301R resin obeys the Freundlich isotherm.The adsorption parameters of thermodynamics are as follows:enthalpy changeΔH=4.37 kJ/mol,Gibbs free energy changeΔG=-5.39 kJ/mol,and entropy changeΔS=32.76 J/（mol·K）.The apparent activation energy is Ea=22.5 kJ/mol.The coordination molar ratio of the functional group of D301R resin to Pt（Ⅳ）is 2:1.
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