A review of modification of carbon electrode material in capacitive deionization.
A review of modification of carbon electrode material in capacitive deionization.
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DOI：
10.1039/c9ra04426d
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发表时间：
2019-08-02
期刊：
影响因子：
3.9
通讯作者：
Zhao, Yubo
中科院分区：
文献类型：
--
作者：
Cheng, Yutuo;Hao, Zhiqi;Hao, Changrun;Deng, Yu;Li, Xingying;Li, Kexun;Zhao, Yubo
Capacitive deionization (CDI) technology has attracted wide attention since its advent and is considered as one of the most promising technologies in the field of desalination and ion recycling. It is constructed with an electric field by applying a low voltage of direct-current to make ions migrate directionally in solution to achieve the purpose of ion separation and removal. The performance of CDI is heavily dependent on the electrode material. Carbon is widely used as CDI electrode material because of its lower price and better stability. To enhance the adsorption capacity, extensive research efforts have been made for the modification of carbon material. In this review, we enumerate and analyze four modification methods of carbon material including element doping, metal oxide modification, chemical treatment and surface coating. The influence of each modification method on CDI performance is concluded in the perspective mechanism and some constructive advice is put forward on how to effectively enhance the performance of CDI by the decoration of carbon materials. The modification methods of carbon material and their effect on the CDI performance were reviewed.
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