碳毡基体电活性铁氰化镍电极电控离子交换连续分离Cs+

Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (5): 837-842.

碳毡基体电活性铁氰化镍电极电控离子交换连续分离Cs⁺

孙斌¹; 郝晓刚¹; 王忠德¹; 张忠林¹; 刘世斌¹; 官国清¹

¹ Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China ² North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan

收稿日期:2011-08-11 修回日期:2011-12-01 出版日期:2012-10-28 发布日期:2011-12-01

Continuous separation of cesium based on NiHCF/PTCF electrode by electrochemically switched ion exchange

SUN Bin¹; HAO Xiaogang¹; WANG Zhongde¹; ZHANG Zhonglin¹; LIU Shibin¹; GUAN Guoqing¹

¹Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China ² North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan

Received:2011-08-11 Revised:2011-12-01 Online:2012-10-28 Published:2011-12-01

摘要/Abstract

摘要： Nickel hexacyanoferrate (NiHCF) film was synthesized on porous three-dimensional carbon felt (PTCF) substrate by repetitious batch chemical depositions, and the NiHCF/PTCF electrode was used as electrochemically switched ion exchange (ESIX) electrode in a packed bed for continuous separation for cesium ions. The morphologies of the prepared electrodes were characterized by scanning electron microscopy and the effects of solution concentration on the ion-exchange capacity of the electrodes were investigated by cyclic voltammetry technique. Cycling stability and long-term storage stability of NiHCF/PTCF electrodes were also studied. The NiHCF/PTCF electrodes with excellent ion-exchange ability were used to assemble a diaphragm-isolated ESIX reactor for cesium separation. Continuous separation of cesium and regeneration of NiHCF/PTCF electrode based on the diaphragm-isolated reactor were performed in a laboratory-scale two-electrode system.

关键词: nickel hexacyanoferrate, electrochemically switched ion exchange, cesium separation, porous carbon felt

Abstract: Nickel hexacyanoferrate (NiHCF) film was synthesized on porous three-dimensional carbon felt (PTCF) substrate by repetitious batch chemical depositions, and the NiHCF/PTCF electrode was used as electrochemically switched ion exchange (ESIX) electrode in a packed bed for continuous separation for cesium ions. The morphologies of the prepared electrodes were characterized by scanning electron microscopy and the effects of solution concentration on the ion-exchange capacity of the electrodes were investigated by cyclic voltammetry technique. Cycling stability and long-term storage stability of NiHCF/PTCF electrodes were also studied. The NiHCF/PTCF electrodes with excellent ion-exchange ability were used to assemble a diaphragm-isolated ESIX reactor for cesium separation. Continuous separation of cesium and regeneration of NiHCF/PTCF electrode based on the diaphragm-isolated reactor were performed in a laboratory-scale two-electrode system.

Key words: nickel hexacyanoferrate, electrochemically switched ion exchange, cesium separation, porous carbon felt

孙斌, 郝晓刚, 王忠德, 张忠林, 刘世斌, 官国清. 碳毡基体电活性铁氰化镍电极电控离子交换连续分离Cs⁺[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 837-842.

SUN Bin, HAO Xiaogang, WANG Zhongde, ZHANG Zhonglin, LIU Shibin, GUAN Guoqing. Continuous separation of cesium based on NiHCF/PTCF electrode by electrochemically switched ion exchange[J]. Chin.J.Chem.Eng., 2012, 20(5): 837-842.