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电容去离子脱盐技术:离子交换膜复合活性炭电极的性能 预览 被引量:9

Capacitive deionization(CDI)technology for desalination of sea water:properties of carbon electrode materials made of activated carbon and ion-exchange membranes
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摘要 引言 随着世界经济及工业的发展、人口的不断增长及环境污染的日益严重,淡水资源的需求量与日俱增。如何从占世界总储水量96%的海水中获得廉价的淡水在世界范围内日益受到关注。 Carbon-based electrode materials are one of the key and indispensable materials in capacitive deionization(CDI)technology with high efficiency and low energy consumption.The potential of petroleum coke-based activated carbon materials as electrode material for CDI was investigated,and the possibility of enhancing the performance of carbon electrodes was demonstrated by coupling with ion-exchange membranes that were decorated on the cathode and anode surfaces.The results showed that for the salted water with a conductivity up to 510 μS·cm^-1,the amount of salt removed from the water could be increased by 50%,at the same time,the current efficiency of the composite electrodes with ion-exchange membranes increased by 17%.The recycling performance of the composite electrodes was also greatly improved.It was found that the electrosorption mechanism involved on the electrodes in the CDI technology was an ideal monolayer adsorption process.
作者 刘红 王刚 王六平 董强 于畅 邱介山 LIU Hong,WANG Gang,WANG Liuping,DONG Qiang,YU Chang,QIU Jieshan(Carbon Research Laboratory,School of Chemical Engineering,Liaoning Key Laboratory for Energy Materials and Chemical Engineering,State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,Liaoning,China)
出处 《化工学报》 EI CAS CSCD 北大核心 2012年第5期 1512-1516,共5页 Journal of Chemical Industry and Engineering(China)
基金 大连市科技局科技计划项目(2010A17GX095) 第47批中国博士后科学基金项目(20100470071) 国家自然科学基金重点基金项目和面上项目(20836002 50902016 20923006)~~
关键词 活性炭 电容去离子 离子交换膜 脱盐 activated carbon capacitive deionization ion-exchange membrane desalination
作者简介 第一作者:刘红(1984-),女,硕士研究生。 联系人:邱介山。
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