Continuous Separation of Cesium Based on NiHCF/PTCF Electrode by Electrochemically Switched Ion Exchange

Chin.J.Chem.Eng. ›› 2012, Vol. 20 ›› Issue (5): 837-842.

• SEPARATION SCIENCE AND ENGINEERING • Previous Articles Next Articles

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 Guoqing²

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

Received:2011-08-11 Revised:2011-12-01 Online:2012-11-06 Published:2012-10-28
Supported by:
Supported by the National Natural Science Foundation of China (21276173);the National Science Foundation of Shanxi Province (2012011020-5, 2012011006-1);the International Joint Research Project of Shanxi Province (2011081028)

Continuous Separation of Cesium Based on NiHCF/PTCF Electrode by Electrochemically Switched Ion Exchange

孙斌¹, 郝晓刚¹, 王忠德¹, 张忠林¹, 刘世斌¹, 官国清²

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

通讯作者: HAO Xiaogang,E-mail:xghao@tyut.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (21276173);the National Science Foundation of Shanxi Province (2012011020-5, 2012011006-1);the International Joint Research Project of Shanxi Province (2011081028)

Abstract

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

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

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.

孙斌, 郝晓刚, 王忠德, 张忠林, 刘世斌, 官国清. Continuous Separation of Cesium Based on NiHCF/PTCF Electrode by Electrochemically Switched Ion Exchange[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 837-842.

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Continuous Separation of Cesium Based on NiHCF/PTCF Electrode by Electrochemically Switched Ion Exchange

Continuous Separation of Cesium Based on NiHCF/PTCF Electrode by Electrochemically Switched Ion Exchange

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