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电容去离子中碳电极材料改性研究综述

A review of modification of carbon electrode material in capacitive deionization.

作者信息

Cheng Yutuo, Hao Zhiqi, Hao Changrun, Deng Yu, Li Xingying, Li Kexun, Zhao Yubo

机构信息

The College of Environmental Science and Engineering, Nankai University Tianjin 300071 China

MOE Key Laboratory of Pollution Processes and Environmental Criteria, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Nankai University Tianjin 300071 China.

出版信息

RSC Adv. 2019 Aug 7;9(42):24401-24419. doi: 10.1039/c9ra04426d. eCollection 2019 Aug 2.

DOI:10.1039/c9ra04426d
PMID:35527893
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9069735/
Abstract

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.

摘要

电容去离子化（CDI）技术自问世以来就备受关注，被认为是海水淡化和离子回收领域最具前景的技术之一。它通过施加低电压直流电构建电场，使离子在溶液中定向迁移，以实现离子分离和去除的目的。CDI的性能在很大程度上取决于电极材料。碳因其价格较低且稳定性较好而被广泛用作CDI电极材料。为了提高吸附容量，人们对碳材料的改性进行了广泛研究。在这篇综述中，我们列举并分析了碳材料的四种改性方法，包括元素掺杂、金属氧化物改性、化学处理和表面涂层。从机理角度总结了每种改性方法对CDI性能的影响，并就如何通过碳材料的修饰有效提高CDI性能提出了一些建设性建议。

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