Removal of Co(Ⅱ) from aqueous solutions by NKC-9 strong acid resin

作     者：熊春华 冯宇杰 姚彩萍 沈忱 

作者机构：Department of Applied ChemistryZhejiang Gongshang University 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2010年第20卷第6期

页      面：1141-1147页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0813[工学-建筑学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Project(2008F70059) supported by Zhejiang Provincial Scientific and Technological Research Planning, China Project(Z200907459) supported by the Key Grant of Education Department of Zhejiang Province, China 

主　　题：strong acid resin ion exchange Co(Ⅱ) adsorption isotherm 

摘      要：A strong acidic ion exchange resin(NKC-9)was used as a new adsorbent material for the removal of Co(Ⅱ)from aqueous *** adsorption isotherm follows the Langmuir *** maximum adsorption capacity of the resin for Co(Ⅱ)is evaluated to be 361.0 mg/g by the Langmuir *** is found that 0.5 mol/L HCl solution provides effectiveness of the desorption of Co(Ⅱ)from the *** adsorption rate constants determined at 288,298 and 308 K are 7.12×10-5,8.51×10-5and 9.85×10-5s-1, *** apparent activation energy(Ea)is 12.0 kJ/mol and the adsorption parameters of thermodynamic are-H Θ=16.1 kJ/mol,-SΘ=163.4 J/(mol·K),-G Θ 298 K=-32.6 kJ/mol,*** adsorption of Co(Ⅱ)on the resin is found to be endothermic in *** experiments show that it is possible to remove Co(Ⅱ)ions from aqueous medium dynamically by NKC-9 resin.