JOURNAL ARTICLE

Carbon Electrodes in Capacitive Deionization Process

Abstract

인구증가와 산업화로 인한 물의 수요 급증에 따른 제3세대 수처리 기술로써 정전기적 흡 탈착 공정에 대한 연구가 진행되고 있다. 정전기적 흡 탈착 기술의 경우, 기존에 사용되는 수처리 방법들에 비해 에너지 소비량이 적으며, 재생시에 2차 오염이 발생하지 않아 차세대 수처리 기술로 주목 받고 있다. 정전기적 흡 탈착 기술에서 이온 제거를 위한 전극 물질로는 넓은 비표면적과 높은 전도도를 갖는 탄소 전극이 주로 사용된다. 현재 다양한 탄소 물질로 이루어진 전극에 대한 연구가 수행되고 있으며, 특히 비표면적, 기공 분포에 따른 흡 탈착 연구가 활발히 진행되고 있다. 본 총설에서는 다양한 탄소 물질 및 기공 분포에 따른 영향을 분석하고, 메조기공과 마이크로기공이 조화를 이루는 최적의 조건을 제시하고자 한다. With the world population's continuous growth and urban industrialization, capacitive deionization (CDI) has been proposed as a next-generation water treatment technology to augment the supply of water. As a future water treatment method, CDI attracts significant attention because it offers small energy consumption and low environmental impact in comparison to conventional methods. Carbon electrodes, which have large surface area and high conductivity, are mainly used as electrode materials of choice for the removal of ions in water. A variety of carbon materials have been investigated, including their adsorption-desorption behavior in accordance to the specific surface area and pore size distribution. In this review, we analyzed and highlighted these carbon materials and looked at the impact of pore size distribution to the overall CDI efficiency. Finally, we propose an optimal condition in the interplay between micropores and mesopores in order to provide the best electrosorption property for these carbon electrodes.

Keywords:
Capacitive deionization Materials science Carbon fibers Electrode Adsorption Water treatment Desorption Nanotechnology Chemical engineering Process engineering Environmental science Environmental engineering Composite material Electrochemistry Chemistry

Metrics

2
Cited By
0.37
FWCI (Field Weighted Citation Impact)
28
Refs
0.64
Citation Normalized Percentile
Is in top 1%
Is in top 10%

Citation History

Topics

Membrane-based Ion Separation Techniques
Physical Sciences →  Engineering →  Biomedical Engineering
Membrane Separation Technologies
Physical Sciences →  Environmental Science →  Water Science and Technology
Advanced Battery Materials and Technologies
Physical Sciences →  Engineering →  Electrical and Electronic Engineering

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